@article{MuellerElAnsariElAnsari2022, author = {M{\"u}ller, Carsten and El-Ansari, Kareem and El Ansari, Walid}, title = {Cross-Sectional Analysis of Mental Health among University Students: Do Sex and Academic Level Matter?}, series = {International Journal of Environmental Research and Public Health}, volume = {19}, journal = {International Journal of Environmental Research and Public Health}, number = {19}, publisher = {MDPI}, doi = {10.25974/fhms-15695}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-156952}, pages = {12670 -- 12670}, year = {2022}, abstract = {University students' mental health and well-being is a growing public health concern. There is a lack of studies assessing a broad range of mental health domains by sex and academic level of study. This cross-sectional online survey of BSc, MSc, and PhD students (n = 3353, 67\% female) enrolled at one university in Germany assessed a wide scope of mental health domains, covering positive (i.e., self-rated health, self-esteem, student engagement) and negative aspects (i.e., perceived stress, irritation, and screening positive for depression, anxiety, comorbidity, and psychological distress). We evaluated differences in mental health by sex and academic level. Overall, although self-rated health did not differ by sex and academic level, females and lower academic level were associated with less favorable mental health. Males reported higher prevalence of high self-esteem, and higher engagement (all p ≤ 0.04). Conversely, mean perceived stress and cognitive/emotional irritation were higher among females, as were rates for positive screenings for anxiety, anxiety and depression comorbidity, and psychological distress (p < 0.001 for all). Likewise, lower academic level (BSc) was associated with lower rates of high self-esteem (p ≤ 0.001), increased perceived stress (p < 0.001), and higher prevalence of positive screening for depression, anxiety, comorbidity, and psychological distress (p ≤ 0.002 for all), while higher academic level (PhD) was linked to increased student engagement (p < 0.001 for all). Although the effect sizes of sex and academic level on student mental health were modest, these findings support a need for action to establish and expand early detection and prevention programs, on-campus advisory services, and peer counseling that focus on the sex-specific and academic-study-level-specific factors, as well as mental health and career development resources for students. Academics and policy makers need to consider multipronged intervention strategies to boost confidence of students and their academic career.}, language = {en} } @article{MuellerKrauthGerssetal.2016, author = {M{\"u}ller, Carsten and Krauth, Konstantin A. and Gerß, Joachim and Rosenbaum, Dieter}, title = {Physical activity and health-related quality of life in pediatric cancer patients following a 4-week inpatient rehabilitation program}, series = {Supportive Care in Cancer}, volume = {24}, journal = {Supportive Care in Cancer}, doi = {10.1007/s00520-016-3198-y}, pages = {3793 -- 3802}, year = {2016}, abstract = {Abstract Purpose Chronic health conditions and impaired quality of life are commonly experienced in childhood cancer survivors. While rehabilitation clinics support patients in coping with the disease, studies evaluating an inpatient rehabilitation program on promoting physical activity (PA) and health-related quality of life (HRQoL) are missing. Methods A 4-week inpatient rehabilitation program was prospectively evaluated. One hundred fifty patients with leukemia or lymphoma (N = 86), brain tumors (N = 38), and sarcomas (N = 26) were enrolled on average 17 months after cessation of acute medical treatment. PA amount and cadence (indicating the intensity of walking activity) using the StepWatch™ 3 Activity Monitor and HRQoL global and physical well-being scores using the KINDL® questionnaire were assessed before, immediately after, and 6 and 12 months following the program and analyzed using multiple linear mixed models. Results Significant effects on PA were only found at 12-month follow-up for amount and cadence variables (all p < 0.05). While leukemia and lymphoma patients revealed the highest PA level throughout the study, rehabilitation effects were more pronounced for cadence variables in brain tumor and sarcoma patients. The rehabilitation program had immediate (t = 4.56, p < 0.001) and sustainable effects on HRQoL global scores (6-month follow-up, t = 4.08, p < 0.001; 12-month follow-up, t = 3.13, p < 0.006). Conclusions Immediate and sustainable increases in HRQoL indicate that a 4-week rehabilitation program is beneficial for improving psychosocial well-being, while the significant increase in PA levels could be related to general recovery as well. The lack of a control group hampers the evaluation of the rehabilitation program on promoting PA levels in pediatric cancer patients.}, language = {en} } @article{KestingGoetteSeideletal.2016, author = {Kesting, Sabine and G{\"o}tte, Miriam and Seidel, Corinna and M{\"u}ller, Carsten and Michel, Thomas and Kr{\"u}ger, Michael and Rosenbaum, Dieter and Boos, Joachim}, title = {Bewegungs- und Sportf{\"o}rderung in der P{\"a}diatrischen Onkologie am Universit{\"a}tsklinikum M{\"u}nster - Erfahrungen und Ergebnisse aus 5 Jahren}, series = {Bewegungstherapie und Gesundheitssport}, volume = {32}, journal = {Bewegungstherapie und Gesundheitssport}, number = {02}, doi = {10.1055/s-0042-103432}, pages = {60 -- 65}, year = {2016}, abstract = {Die weitreichenden Potenziale individualisierter Bewegungsf{\"o}rderung f{\"u}r krebskranke Kinder und Jugendliche sollten {\"u}ber den gesamten Zeitraum der Akuttherapie, in der Nachsorge und bei der R{\"u}ckkehr in den Alltag genutzt und als Bestandteil der Normalit{\"a}t aufrechterhalten und gef{\"o}rdert werden. Dieser Artikel stellt beispielhaft f{\"u}r den Standort M{\"u}nster Ergebnisse und Erfahrungen aus den letzten 5 Jahren sporttherapeutischer und sportp{\"a}dagogischer Bewegungsf{\"o}rderung im kinderonkologischen Setting dar und liefert konkrete Zahlen {\"u}ber die Bewegungsumf{\"a}nge, die erreichten Patienten sowie die M{\"o}glichkeiten und Grenzen eines derartigen Angebots.}, language = {de} } @article{MuellerBrandes2015, author = {M{\"u}ller, Carsten and Brandes, Mirko}, title = {The effect of kinesiology tape applications on performance in amateur soccer and team handball}, series = {Journal of Human Kinetics}, volume = {49}, journal = {Journal of Human Kinetics}, number = {1}, doi = {10.25974/fhms-16855}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-168553}, pages = {119 -- 129}, year = {2015}, abstract = {Evidence supporting performance enhancing effects of kin esiotape in sports is missing . The aims of this studywere to evaluate effects of kinesiotape applications with regard to shooting and throwing performance in 26 amateursoccer and 32 handball players, and to further investigate if these effects were influenced by the players' level ofperformance. Ball speed as the primary outcome and accuracy of soccer kicks and handball throws were analyzed withand without kinesiotape by means of radar units and video recordings. The application of kinesiotapes significantlyincreased ball speed in soccer by 1.4 km/h (p=0.047) and accuracy with a lesser di stance from the target by -6.9 cm(p=0.039). Ball velocity in handball throws also signific antly increased by 1.2 km/h (p=0.013), while accuracy wasdeteriorated with a greater distance from the target by 3.4 cm (p=0.005). Larger effects with respect to ball speed werefound in players with a lower performance level in kick ing (1.7 km/h, p=0.028) and throwing (1.8 km/h, p=0.001)compared with higher level soccer and handball players (1.2 km/h, p=0.346 and 0.5 km/h, p=0.511, respectively). Inconclusion, the applications of kinesiot ape used in this study might have beneficial effects on performance in amateursoccer, but the gain in ball speed in handball is counterac ted by a significant deterioration of accuracy. Subgroupanalyses indicate that kinesiotape may yield larger effects on ball velocity in athletes with lower kicking and throwingskills.}, language = {en} } @incollection{Mueller2020, author = {M{\"u}ller, Carsten}, title = {Eine systematische {\"U}bersicht und Meta-Analyse von Querschnittsstudien zum Zusammenhang zwischen k{\"o}rperlicher Aktivit{\"a}t und psychischer Gesundheit bei Studierenden}, series = {Sport und Studienerfolg. Analysen zur Bedeutung sportlicher Aktivit{\"a}t im Setting Hochschule}, booktitle = {Sport und Studienerfolg. Analysen zur Bedeutung sportlicher Aktivit{\"a}t im Setting Hochschule}, editor = {G{\"o}ring, Arne and Mayer, Jochen and Jetzke, Malte}, publisher = {Universit{\"a}tsverlag G{\"o}ttingen}, address = {G{\"o}ttingen}, isbn = {978-3-86395-466-6}, doi = {10.17875/gup2020-1337}, publisher = {FH M{\"u}nster - University of Applied Sciences}, pages = {87 -- 114}, year = {2020}, abstract = {Im Beitrag wird eine „Systematische {\"U}bersicht und Meta-Analyse von Querschnittsstudien zum Zusammenhang zwischen k{\"o}rperlicher Aktivit{\"a}t und psychischer Gesundheit bei Studierenden" vorgestellt. Auf Grundlage von 18 internationalen Studien wird die Frage beantwortet, inwieweit sich positive Assoziationen zwischen k{\"o}rperlicher Aktivit{\"a}t und psychischer Gesundheit auch bei Studierenden best{\"a}tigen lassen. Hierbei zeigt sich, dass psychische Beschwerden bei Studierenden vor allem in Form eines erh{\"o}hten Stresserlebens, von depressiven Symptomen und Angstst{\"o}rungen auftreten. Die Studienlage verweist zwar auf einen engen Zusammenhang von psychischer Gesundheit und k{\"o}rperlicher Aktivit{\"a}t, allerdings wurde dieser Zusammenhang bei Studierenden bislang noch nicht ad{\"a}quat nachgewiesen. Lediglich f{\"u}r den Einfluss von k{\"o}rperlicher Aktivit{\"a}t auf Angstst{\"o}rungen wird ein moderater Zusammenhang ersichtlich. Da Studierende, die unter depressiven Beschwerden leiden, ihr Studium eher abbrechen, l{\"a}sst sich die Schlussfolgerung ziehen, dass k{\"o}rperliche Aktivit{\"a}t eine relevante Gr{\"o}ße f{\"u}r den Studienerfolg darstellen kann. Allerdings fehlen derzeit noch großangelegte empirische Studien, die sich explizit auf das deutsche Hochschulsystem beziehen.}, language = {de} } @article{TanJetzkeVergeldetal.2020, author = {Tan, Shu Ling and Jetzke, Malte and Vergeld, Vera and M{\"u}ller, Carsten}, title = {Independent and Combined Associations of Physical Activity, Sedentary Time, and Activity Intensities With Perceived Stress Among University Students: Internet-Based Cross-Sectional Study}, series = {JMIR Public Health and Surveillance}, volume = {6}, journal = {JMIR Public Health and Surveillance}, number = {4}, doi = {10.2196/20119}, pages = {1 -- 14}, year = {2020}, abstract = {Background: Mental health is an emerging topic on university campuses, with students reporting higher levels of psychological distress than the general population of the same age. Increasing physical activity and reducing sedentary time have been proved promising measures to promote mental health in the general population. However, to derive and implement effective measures to promote mental health among university students, further exploration of the associations between physical activity, sedentary time, and perceived stress in this specific setting is needed. Objective: This study aims to identify associations between physical activity, sedentary time, and perceived stress after controlling for sociodemographic and behavioral variables among university students in Germany. We hypothesize that perceived stress is inversely related to physical activity and positively associated with sedentary time. Furthermore, we hypothesize that combined associations of concurrently high physical activity and low sedentary time on perceived stress are stronger compared with either alone and that the association between physical activity and perceived stress depends on activity intensity. Methods: We conducted cross-sectional analyses from a large-scale internet-based student health survey (n=4189; response rate=10.0\%). Physical activity, sedentary time, and engaging in moderate and vigorous activity intensities were assessed using the International Physical Activity Questionnaire Short Form with categorization into low, intermediate, and high levels. We measured perceived stress using the 10-item Perceived Stress Scale (range 0-40). Results: The results indicate that higher physical activity and lower sedentary time are associated with reduced levels of perceived stress. Following adjustment for gender, BMI, income, fruit and vegetable intake, alcohol consumption, and sleep quality, perceived stress scores were lower for students reporting high physical activity levels and low sedentary time compared with the least active and highly sedentary students (Perceived Stress Scale -2.2, 95\% CI -2.9 to -1.5, P<.001 for physical activity and -1.1, CI 95\% -1.7 to -0.5, P<.001 for sedentary time). Combined associations with perceived stress revealed that students concurrently reporting high total physical activity and low sedentary time reported the lowest perceived stress scores of all possible combinations following adjustment for confounders (Perceived Stress Scale -3.5, CI 95\% -4.6 to -2.5, P<.001 compared with students reporting low physical activity levels and concurrently high sedentary time). Associations between vigorous physical activities and perceived stress were not stronger compared with moderate activity intensities. Conclusions: Self-reported physical activity and low sedentary time are favorably associated with perceived stress, while the intensity of physical activities seems to be of minor importance. These results help to effectively implement health-promoting measures on campus among university students through increasing physical activity and reducing sedentary time.}, language = {en} } @article{MuellerZentgraf2021, author = {M{\"u}ller, Carsten and Zentgraf, Karen}, title = {Neck and Trunk Strength Training to Mitigate Head Acceleration in Youth Soccer Players}, series = {he Journal of Strength and Conditioning Research}, volume = {35}, journal = {he Journal of Strength and Conditioning Research}, doi = {10.1519/JSC.0000000000003822}, pages = {S81 -- S89}, year = {2021}, abstract = {Heading in soccer involves repetitive head accelerations that may be detrimental for brain health. One way to mitigate adverse effects may be to increase head-neck stabilization and thus reduce the kinematic response after intentional headers. This study aimed to (a) assess associations between neck strength and head kinematics and (b) evaluate an exercise intervention designed to increase strength and attenuate head acceleration during intentional heading in youth soccer players. In 22 athletes, we used accelerometers to assess associations between neck strength and peak linear acceleration (PLA). We attached the accelerometers to the occiput and sternum, allowing us to differentiate between total, trunk, and head PLA. Longitudinally, we evaluated the effects of a 14-week twice-weekly resistance training in a subsample of 14 athletes compared with regular soccer training (N = 13). Results showed that female athletes had lower isolated neck strength (p ≤ 0.004), lower functional neck strength (p ≤ 0.017), and higher total PLA during purposeful headers compared with males (17.2 ± 3.5 g and 13.0 ± 2.3 g, respectively, at 9.6 m·s-1 ball velocity during impact; p = 0.003). The intervention group showed moderate to large strength gains (η = 0.16-0.42), resulting in lower PLA (total -2.4 g, trunk -0.8 g, and head -1.5 g) during headers. We conclude that a resistance training focusing on cervical and trunk musculature is practicable in youth soccer, elicits strength gains, and helps to mitigate PLA during purposeful heading. Results should encourage youth strength and conditioning professionals to incorporate neck exercises as a risk reduction strategy into their training routine.}, language = {en} } @article{FergerHackbarthMyloetal.2019, author = {Ferger, Katja and Hackbarth, Michael and Mylo, Max David and M{\"u}ller, Carsten and Zentgraf, Karen}, title = {Measuring temporal and spatial accuracy in trampolining}, series = {Sports Engineering}, volume = {22}, journal = {Sports Engineering}, number = {18}, doi = {10.1007/s12283-019-0310-9}, pages = {1 -- 7}, year = {2019}, abstract = {A new measurement system (horizontal displacement, time of flight, synchronicity—HDTS) was investigated regarding the latest changes to the international evaluation rules in trampoline gymnastics. It allows for the real-time measurement of objective criteria, such as flight time and landing position, without affecting the gymnast. The aim of this study was to investigate the temporal and spatial accuracy of a measurement tool via cross-validation. Temporal precision was additionally tested via high-speed video landing and takeoff, while a three-dimensional motion capturing system was incorporated for spatial precision. The Bland-Altman "limit of agreement approach" was used for the assessment of congruence between the measurement systems. The new measurement system presented an average spatial deviation of 3.2 cm and a temporal deviation between - 5.8 and + 6.4 ms for the landing and - 11.3 and + 11.3 ms for the takeoff. Given its temporal and spatial accuracy in determining flight time and landing position as identified through cross-validation, the novel HDTS system proved to be suitable for its use in trampoline competitions.}, language = {en} } @article{MuellerZentgraf2018, author = {M{\"u}ller, Carsten and Zentgraf, Karen}, title = {Spezifisches Krafttraining der Nackenmuskulatur (DFB-Akademie Wissen) Ein waghalsiges Training - Krafttraining zur Pr{\"a}vention m{\"o}glicher Sp{\"a}tfolgen durch h{\"a}ufiges Kopfballspiel}, series = {DFB-Akademie}, journal = {DFB-Akademie}, year = {2018}, abstract = {Die hohe Anzahl sportassoziierter Gehirnersch{\"u}tterungen verdeutlicht die gesundheitliche Bedeutung dieser Verletzungen. Im Fußball liegt das Risiko bei 0,2 bis 1,4 Sch{\"a}del-Hirnverletzungen pro 1.000 Spiel- und Trainingsstunden. Vor dem Hintergrund der Verletzungspr{\"a}vention wird zwischen antizipierten und nicht-antizipierten Kraftst{\"o}ßen auf den Kopf unterschieden. Insbesondere j{\"u}ngere und weibliche Spieler/innen k{\"o}nnen von einem spezifischen Training der Hals- und Rumpfmuskulatur zur Verletzungspr{\"a}vention profitieren.}, language = {de} } @techreport{MuellerZentgraf2020, author = {M{\"u}ller, Carsten and Zentgraf, Karen}, title = {Specific Neck and Trunk Strength Training to Mitigate Head Acceleration in Youth Soccer Players - A Practical Guide}, doi = {10.13140/RG.2.2.27782.40006}, pages = {28}, year = {2020}, language = {de} } @inproceedings{MuellerHendkerSzwajcaetal.2017, author = {M{\"u}ller, Carsten and Hendker, Anna and Szwajca, Sebastian and Zentgraf, Karen}, title = {The relation between agility performance (changes) and core stability in elite handball and volleyball players}, series = {Conference: Cogito, ergo commoveo - Multitasking im Sport}, booktitle = {Conference: Cogito, ergo commoveo - Multitasking im Sport}, publisher = {Feldhaus, Edition Czwalina}, address = {Hamburg}, isbn = {978-3-88020-648-9}, year = {2017}, abstract = {Although practical guidelines refer to core stability as a necessity for agility performance, it is not explicitly considered a prerequisite for agility performance development. Therefore, we assume an essential role of the core regarding the development of agility performance.}, language = {en} } @article{MuellerRosenbaumKrauth2017, author = {M{\"u}ller, Carsten and Rosenbaum, Dieter and Krauth, Konstantin A.}, title = {Prospective Evaluation of Postural Control and Gait in Pediatric Patients with Cancer After a 4-Week Inpatient Rehabilitation Program}, series = {American journal of physical medicine \& rehabilitation / Association of Academic Physiatrists}, volume = {96}, journal = {American journal of physical medicine \& rehabilitation / Association of Academic Physiatrists}, number = {9}, doi = {10.1097/PHM.0000000000000729}, pages = {646 -- 653}, year = {2017}, abstract = {Objective The aim of the study was to investigate the effects of a 4-wk inpatient rehabilitation program on postural control and gait in pediatric patients with cancer. Design Eighty-eight patients with brain tumors (n = 59) and bone/soft tissue sarcomas (n = 29) were evaluated. Postural control was assessed examining the velocity of the center of pressure and single-leg stance time on a pressure distribution platform. Walk ratio, a measure of neuromotor control, was used to evaluate intervention effects on gait. Results Repeated measures analysis of variance showed improvements in postural control measures, indicated by a decrease in velocity of center of pressure of -0.4 cm/sec (F1,80 = 7.175, P = 0.009, ηp2 = 0.082) and increase in single-leg stance time (mean [median] = 1.1 [2.6] sec, respectively; F1,80 = 12.617, P = 0.001, ηp2 = 0.136). Walk ratio increased by 0.2 mm/steps per min (F1,82 = 3.766, P = 0.056, ηp2 = 0.044). Mean changes in dependent variables did not differ between both patient groups (P > 0.05). Conclusions The results indicate benefits of an inpatient rehabilitation program comprising standard physical therapy as well as aquatic and hippo therapy on postural control and gait after treatment of pediatric patients with cancer.}, language = {en} } @article{WeberMuellerBahnsetal.2023, author = {Weber, Franziska and M{\"u}ller, Carsten and Bahns, Carolin and Kopkow, Christian and F{\"a}rber, Francesca and Gellert, Paul and Otte, Ina and Vollmar, Horst Christian and Brannath, Werner and Diederich, Freya and Kloep, Stephan and Rothgang, Heinz and Dieter, Valerie and Krauß, Inga and Kloek, Corelien and Veenhof, Cindy and Collisi, Sandra and Repschl{\"a}ger, Ute and B{\"o}binger, Hannes and Gr{\"u}neberg, Christian and Thiel, Christian and Peschke, Dirk}, title = {Smartphone-assisted training with education for patients with hip and/or knee osteoarthritis (SmArt-E): study protocol for a multicentre pragmatic randomized controlled trial}, series = {BMC Musculoskeletal Disorders}, journal = {BMC Musculoskeletal Disorders}, number = {24}, doi = {10.1186/s12891-023-06255-7}, pages = {1 -- 23}, year = {2023}, abstract = {Introduction Hip and knee osteoarthritis are associated with functional limitations, pain and restrictions in quality of life and the ability to work. Furthermore, with growing prevalence, osteoarthritis is increasingly causing (in)direct costs. Guidelines recommend exercise therapy and education as primary treatment strategies. Available options for treatment based on physical activity promotion and lifestyle change are often insufficiently provided and used. In addition, the quality of current exercise programmes often does not meet the changing care needs of older people with comorbidities and exercise adherence is a challenge beyond personal physiotherapy. The main objective of this study is to investigate the short- and long-term (cost-)effectiveness of the SmArt-E programme in people with hip and/or knee osteoarthritis in terms of pain and physical functioning compared to usual care. Methods This study is designed as a multicentre randomized controlled trial with a target sample size of 330 patients. The intervention is based on the e-Exercise intervention from the Netherlands, consists of a training and education programme and is conducted as a blended care intervention over 12 months. We use an app to support independent training and the development of self-management skills. The primary and secondary hypotheses are that participants in the SmArt-E intervention will have less pain (numerical rating scale) and better physical functioning (Hip Disability and Osteoarthritis Outcome Score, Knee Injury and Osteoarthritis Outcome Score) compared to participants in the usual care group after 12 and 3 months. Other secondary outcomes are based on domains of the Osteoarthritis Research Society International (OARSI). The study will be accompanied by a process evaluation. Discussion After a positive evaluation, SmArt-E can be offered in usual care, flexibly addressing different care situations. The desired sustainability and the support of the participants' behavioural change are initiated via the app through audio-visual contact with their physiotherapists. Furthermore, the app supports the repetition and consolidation of learned training and educational content. For people with osteoarthritis, the new form of care with proven effectiveness can lead to a reduction in underuse and misuse of care as well as contribute to a reduction in (in)direct costs. Trial registration German Clinical Trials Register, DRKS00028477. Registered on August 10, 2022.}, language = {en} } @article{MuellerElAnsariElAnsari2022, author = {M{\"u}ller, Carsten and El-Ansari, Kareem and El Ansari, Walid}, title = {Health Promoting Behavior and Lifestyle Characteristics of Students as a Function of Sex and Academic Level}, series = {International Journal of Environmental Research and Public Health}, volume = {19}, journal = {International Journal of Environmental Research and Public Health}, number = {12}, doi = {10.3390/ijerph19127539}, pages = {1 -- 18}, year = {2022}, abstract = {University students frequently engage in unhealthy behaviors. However, there is a lack of studies examining a wide range of their lifestyle characteristics by sex and academic level of study. This cross-sectional survey of students enrolled in BSc, MSc, or PhD programs at one university in Germany (N = 3389) assessed physical activity (PA), sedentary behavior (SB), nutrition, sleep quality, and alcohol, tobacco, and other drug (ATOD) use by sex and academic level and was conducted with EvaSys version 8.0. Chi-squared tests compared categorical variables by sex, and binary logistic regression analyses adjusted for sex with Bonferroni adjustments evaluated differences across academic level. Although 91\% of students achieved the aerobic PA guidelines, only 30\% achieved the muscle strengthening exercises (MSE) guidelines, and 44\% had high SB. Likewise, <10\% met the fruit and vegetable consumption (FVC) recommendations, >40\% of students experienced impaired sleep, and >30\% had hazardous alcohol consumption. Less than 20\% of the sample achieved the guideline/recommendation of all three PA, MSE and SB. Some behaviors exhibited significant sex and academic level differences. The identified at-risk groups included males (lower FVC), females (eating more during stress), and BSc students (poorer nutrition/sleep quality, more ATOD use). Given the above findings, multipronged strategies are needed with an overarching focus highlighting the health-academic achievement links. Behavioral interventions and environmental policies are required to raise awareness and promote student health.}, language = {de} } @article{Mueller2022, author = {M{\"u}ller, Carsten}, title = {External Load Analysis in Beach Handball Using a Local Positioning System and Inertial Measurement Units}, series = {Sensors}, volume = {22}, journal = {Sensors}, number = {8}, doi = {10.3390/s22083011}, pages = {1 -- 14}, year = {2022}, abstract = {Beach handball is a young discipline that is characterized by numerous high-intensity actions. By following up on previous work, the objective was to perform in-depth analyses evaluating external load (e.g., distance traveled, velocity, changes in direction, etc.) in beach handball players. In cross-sectional analyses, data of 69 players belonging to the German national or prospective team were analyzed during official tournaments using a local positioning system (10 Hz) and inertial measurement units (100 Hz). Statistical analyses comprised the comparison of the first and second set and the effects of age and sex (female adolescents vs. male adolescents vs. male adults) and playing position (goalkeepers, defenders, wings, specialists, and pivots) on external load measures. We found evidence for reduced external workload during the second set of the matches (p = 0.005, ηp2 = 0.09), as indicated by a significantly lower player load per minute and number of changes in direction. Age/sex (p < 0.001, ηp2 = 0.22) and playing position (p < 0.001, ηp2 = 0.29) also had significant effects on external load. The present data comprehensively describe and analyze important external load measures in a sample of high-performing beach handball players, providing valuable information to practitioners and coaches aiming at improving athletic performance in this new sport.}, language = {en} } @article{Mueller2022, author = {M{\"u}ller, Carsten}, title = {Zusammenhang zwischen selbstberichteter k{\"o}rperlicher Aktivit{\"a}t gem{\"a}ß nationaler Bewegungsempfehlungen und mentaler Gesundheit Studierender}, series = {Bewegungstherapie und Gesundheitssport}, volume = {38}, journal = {Bewegungstherapie und Gesundheitssport}, number = {03}, doi = {10.1055/a-1820-0330}, pages = {120 -- 128}, year = {2022}, abstract = {Studien haben wiederholt auf eine hohe Beschwerdelast Studierender hingewiesen und Hochschulen veranlasst, sich zunehmend im studentischen Gesundheitsmanagement zu engagieren, das darauf abzielt, gesundheitsf{\"o}rdernde Strukturen zu entwickeln sowie individuelle Ressourcen im Setting Hochschule zu f{\"o}rdern. Die k{\"o}rperliche Aktivit{\"a}t und mentale Gesundheit Studierender stellen hierf{\"u}r Ansatzpunkte dar. International zeigen sich eindeutige Zusammenh{\"a}nge zwischen dem Bewegungsverhalten Studierender und der psychischen Gesundheit, jedoch liegen bisher nur wenige nationale Erhebungen vor, was die {\"U}bertragbarkeit auf die deutsche Hochschullandschaft einschr{\"a}nkt. Dieser Beitrag untersucht, wie in dieser Zielgruppe die aktuellen Bewegungsempfehlungen, bestehend aus den Kategorien ausdauerorientierte k{\"o}rperliche Aktivit{\"a}ten, Sitzzeiten und muskelkr{\"a}ftigende Aktivit{\"a}ten, mit verschiedenen Indikatoren mentaler Gesundheit zusammenh{\"a}ngen. Im Sommersemester 2019 nahmen 4.244 Studierende an einer hochschulweiten Umfrage teil. Neben dem Bewegungsverhalten wurden das Stresserleben erhoben und Screenings auf Kernelemente einer depressiven und angstbezogenen St{\"o}rung sowie auf eine psychische Belastung durchgef{\"u}hrt. Positive Aspekte mentaler Gesundheit wurden {\"u}ber eine Skala zur Beurteilung studentischen Engagements erfasst. Als Assoziationsmaß wurden adjustierte Odds Ratios unter Ber{\"u}cksichtigung soziodemografischer und behavioraler St{\"o}rvariablen berechnet. S{\"a}mtliche Kriterien der Bewegungsempfehlungen werden von 9,6\% der Studierenden erreicht. 48\% der Befragten weisen ein hohes Stresserleben auf und 29\% gelten als psychisch belastet. Das Befolgen aller Kriterien der Bewegungsempfehlungen ist mit signifikant geringeren Chancen f{\"u}r psychische Belastungsindikatoren assoziiert, wobei der st{\"a}rkste Zusammenhang f{\"u}r depressive Symptome gefunden wurde. Studentisches Engagement war nicht signifikant mit dem Erreichen der Bewegungsempfehlungen assoziiert. Die Ergebnisse best{\"a}tigen die hohe psychische Belastung Studierender und deuten das Optimierungspotenzial aus Sicht der Bewegungsf{\"o}rderung an. Hochschulen sollten die Studienbedingungen und das Gesundheitsverhalten der Studierenden systematisch und fortlaufend analysieren, um geeignete verhaltens- und verh{\"a}ltnisorientierte Maßnahmen wie bewegungsorientierte Lehre, Campusentwicklung und Ausbau des Hochschulsportangebots abzuleiten und zu evaluieren.}, language = {de} } @article{MuellerWinterRosenbaumetal.2010, author = {M{\"u}ller, Carsten and Winter, Corinna and Rosenbaum, Dieter and Boos, Joachim and Gosheger, Georg and Hardes, Jendrik and Vieth, Volker}, title = {Early decrements in bone density after completion of neoadjuvant chemotherapy in pediatric bone sarcoma patients}, series = {BMC Musculoskeletal Disorders}, volume = {11}, journal = {BMC Musculoskeletal Disorders}, number = {287}, doi = {10.25974/fhms-16866}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-168661}, pages = {1 -- 8}, year = {2010}, abstract = {Background Bone mineral density (BMD) accrual during childhood and adolescence is important for attaining peak bone mass. BMD decrements have been reported in survivors of childhood bone sarcomas. However, little is known about the onset and development of bone loss during cancer treatment. The objective of this cross-sectional study was to evaluate BMD in newly diagnosed Ewing's and osteosarcoma patients by means of dual-energy x-ray absorptiometry (DXA) after completion of neoadjuvant chemotherapy. Methods DXA measurements of the lumbar spine (L2-4), both femora and calcanei were performed perioperatively in 46 children and adolescents (mean age: 14.3 years, range: 8.6-21.5 years). Mean Z-scores, areal BMD (g/cm2), calculated volumetric BMD (g/cm3) and bone mineral content (BMC, g) were determined. Results Lumbar spine mean Z-score was -0.14 (95\% CI: -0.46 to 0.18), areal BMD was 1.016 g/cm2 (95\% CI: 0.950 to 1.082) and volumetric BMD was 0.330 g/cm3 (95\% CI: 0.314 to 0.347) which is comparable to healthy peers. For patients with a lower extremity tumor (n = 36), the difference between the affected and non-affected femoral neck was 12.1\% (95\% CI: -16.3 to -7.9) in areal BMD. The reduction of BMD was more pronounced in the calcaneus with a difference between the affected and contralateral side of 21.7\% (95\% CI: -29.3 to -14.0) for areal BMD. Furthermore, significant correlations for femoral and calcaneal DXA measurements were found with Spearman-rho coefficients ranging from ρ = 0.55 to ρ = 0.80. Conclusions The tumor disease located in the lower extremity in combination with offloading recommendations induced diminished BMD values, indicating local osteopenia conditions. However, the results revealed no significant decrements of lumbar spine BMD in pediatric sarcoma patients after completion of neoadjuvant chemotherapy. Nevertheless, it has to be taken into account that bone tumor patients may experience BMD decrements or secondary osteoporosis in later life. Furthermore, the peripheral assessment of BMD in the calcaneus via DXA is a feasible approach to quantify bone loss in the lower extremity in bone sarcoma patients and may serve as an alternative procedure, when the established assessment of femoral BMD is not practicable due to endoprosthetic replacements.}, language = {en} } @article{WinterBrandesMuelleretal.2010, author = {Winter, Corinna and Brandes, Mirko and M{\"u}ller, Carsten and Schubert, Tim and Ringling, Michael and Hillmann, Axel and Rosenbaum, Dieter and Schulte, Tim T.}, title = {Walking ability during daily life in patients with osteoarthritis of the knee or the hip and lumbar spinal stenosis}, series = {BMC Musculoskeletal Disorders}, volume = {11}, journal = {BMC Musculoskeletal Disorders}, number = {233}, doi = {10.25974/fhms-16867}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-168673}, pages = {1 -- 7}, year = {2010}, abstract = {Background Degenerative musculoskeletal disorders are among the most frequent diseases occurring in adulthood, often impairing patients' functional mobility and physical activity. The aim of the present study was to investigate and compare the impact of three frequent degenerative musculoskeletal disorders -- knee osteoarthritis (knee OA), hip osteoarthritis (hip OA) and lumbar spinal stenosis (LSS) -- on patients' walking ability. Methods The study included 120 participants, with 30 in each patient group and 30 healthy control individuals. A uniaxial accelerometer, the StepWatch™ Activity Monitor (Orthocare Innovations, Seattle, Washington, USA), was used to determine the volume (number of gait cycles per day) and intensity (gait cycles per minute) of walking ability. Non-parametric testing was used for all statistical analyses. Results Both the volume and the intensity of walking ability were significantly lower among the patients in comparison with the healthy control individuals (p < 0.001). Patients with LSS spent 0.4 (IQR 2.8) min/day doing moderately intense walking (>50 gait cycles/min), which was significantly lower in comparison with patients with knee and hip OA at 2.5 (IQR 4.4) and 3.4 (IQR 16.1) min/day, respectively (p < 0.001). No correlations between demographic or anthropometric data and walking ability were found. No technical problems or measuring errors occurred with any of the measurements. Conclusions Patients with degenerative musculoskeletal disorders suffer limitations in their walking ability. Objective assessment of walking ability appeared to be an easy and feasible tool for measuring such limitations as it provides baseline data and objective information that are more precise than the patients' own subjective estimates. In everyday practice, objective activity assessment can provide feedback for clinicians regarding patients' performance during everyday life and the extent to which this confirms the results of clinical investigations. The method can also be used as a way of encouraging patients to develop a more active lifestyle.}, language = {en} } @article{MuellerWinterKleinetal.2010, author = {M{\"u}ller, Carsten and Winter, Corinna and Klein, Dieter and Fuchs, Katharina and Schmidt, Carolin and Schulte, Tobias L. and Bullmann, Viola and Rosenbaum, Dieter}, title = {Objective assessment of brace wear times and physical activities in two patients with scoliosis}, series = {Biomedizinische Technik}, volume = {55}, journal = {Biomedizinische Technik}, number = {2}, doi = {10.1515/BMT.2010.026}, pages = {117 -- 120}, year = {2010}, abstract = {Conservative treatment of adolescent idiopathic scoliosis consists of therapeutic exercise and the application of braces. The effectiveness of bracing mainly depends on patient compliance, which can be determined by means of temperature sensors. This methodological paper describes the feasibility of objectively determining compliance and daily physical activities before and during conservative scoliosis treatment, being a relevant indicator for quality of life in children and adolescents. One patient with low compliance (61.4±24.9\%) reduced her activity level during bracing by 50.1\%, whereas another patient with a satisfactory compliance (85.7±19.5\%) increased her daily activity level by 33.7\% during conservative treatment.}, language = {en} } @article{WinterMuellerHoffmannetal.2010, author = {Winter, Corinna and M{\"u}ller, Carsten and Hoffmann, Christiane and Boos, Joachim and Rosenbaum, Dieter}, title = {Physical activity and childhood cancer}, series = {Pediatric Blood \& Cancer}, volume = {54}, journal = {Pediatric Blood \& Cancer}, number = {4}, doi = {10.1002/pbc.22271}, pages = {501 -- 510}, year = {2010}, abstract = {This review provides a survey of studies investigating physical activity and exercise interventions in patients during tumor treatment and survivors of childhood cancer. PubMed and Medline databases were searched using relevant terms. References of selected papers were tracked. A total of 28 studies could be identified. Seventeen studies investigated physical activity, 11 studies determined the effect of activity enhancing interventions during and after therapy. Even though most studies showed limitations and results were not consistent, considerably reduced physical activity is highly probable in patients during and after therapy. Studies on interventions provided promising results and revealed challenges to be faced. Pediatr Blood Cancer}, language = {en} } @article{MuellerWinterRosenbaum2010, author = {M{\"u}ller, Carsten and Winter, Corinna and Rosenbaum, Dieter}, title = {Aktuelle objektive Messverfahren zur Erfassung k{\"o}rperlicher Aktivit{\"a}t im Vergleich zu subjektiven Erhebungsmethoden}, series = {Deutsche Zeitschrift f{\"u}r Sportmedizin}, volume = {61}, journal = {Deutsche Zeitschrift f{\"u}r Sportmedizin}, number = {1}, pages = {11 -- 18}, year = {2010}, abstract = {Die Erfassung von Alltagsaktivit{\"a}ten (activities of daily life, ADL) ist unerl{\"a}sslich, wenn der Zusammenhang von k{\"o}rperlicher Aktivit{\"a}t und Gesundheit aufgezeigt oder die Effizienz von Interventionen zur Steigerung der k{\"o}rperlichen Aktivit{\"a}t evaluiert werden soll. Derzeit existiert keine Methode, die pr{\"a}zise alle Formen der Alltagsaktivit{\"a}ten erfassen kann. Diese {\"U}bersichtsarbeit beschreibt und vergleicht auf Basis einer umfassenden Literaturrecherche moderne Messverfahren zur Erfassung k{\"o}rperlicher Aktivit{\"a}ten im Alltag, bei der die Darstellung objektiver Verfahren einen Schwerpunkt bildet. Subjektive Erhebungsmethoden wie Frageb{\"o}gen und objektive Aktivit{\"a}tsmonitore, zu denen Schrittz{\"a}hler und Akzelerometer z{\"a}hlen, sowie kombinierte Verfahren von Akzelerometrie und Herzfrequenz, sind derzeit die g{\"a}ngigsten Methoden, Alltagsaktivit{\"a}ten zu erfassen. Daneben existieren weitere M{\"o}glichkeiten wie Doubly Labeled Water, Kalorimetrie oder direkte Beobachtungen der Testperson, die als Goldstandard des Activity Assessments angesehen und zur Validierung oben genannter Verfahren genutzt werden k{\"o}nnen. Obwohl diese Methoden das gr{\"o}ßte Potential bei der Erfassung k{\"o}rperlicher Aktivit{\"a}ten hinsichtlich der Messpr{\"a}zision haben, muss bei der Auswahl der Erhebungsmethode angesichts der Vielzahl an M{\"o}glichkeiten auch ihre Anwendbarkeit ber{\"u}cksichtigt werden. Die technischen Entwicklungen insbesondere im Bereich des Aktivit{\"a}tsmonitorings machen eine st{\"a}ndige Auseinandersetzung mit seinen vielf{\"a}ltigen M{\"o}glichkeiten unerl{\"a}sslich. Diese {\"U}bersicht soll f{\"u}r den Anwender eine Hilfestellung bei der Studienkonzipierung darstellen.}, language = {de} } @article{WinterMuellerBrandesetal.2009, author = {Winter, Corinna and M{\"u}ller, Carsten and Brandes, Mirko and Brinkmann, Anja and Hoffmann, Christiane and Hardes, Jendrik and Gosheger, Georg and Boos, Joachim and Rosenbaum, Dieter}, title = {Level of activity in children undergoing cancer treatment}, series = {Pediatric Blood \& Cancer}, volume = {53}, journal = {Pediatric Blood \& Cancer}, number = {3}, doi = {10.1002/pbc.22055}, pages = {438 -- 443}, year = {2009}, abstract = {Background The diagnosis of cancer bears severe implications for pediatric patients. One immense restriction consists in a reduced level of activity due to different factors. Physical activity affects various aspects of development and can be regarded as an essential part of a child's life. In the present study physical activity in patients undergoing cancer therapy was quantified in order to determine the extent of the restriction and to provide baseline information for the assessment of possible interventions. Procedure Physical activity in 80 patients and 45 healthy children matched for age and gender was measured using the StepWatch 3™ Activity Monitor (SAM, OrthoCare Innovations). Results Pediatric cancer patients, at 2,787 gait cycles (gcs) per day, were significantly less active than their healthy counterparts (8,096 gcs). Patients were significantly more active at home than during inpatient stays (3,185 gcs compared to 1,830 gcs), and patients with bone tumors were less active than those with leukemia regarding both, the amount (1,849 gcs vs. 2,992 gcs) and the intensity of activity. Conclusion The present study quantified an often observed but so far hardly assessable problem. Activity in cancer patients is considerably reduced and patients with bone tumors are at increased risk from the detrimental effects of prolonged inactivity. Both our findings and the accepted fact that activity is an essential element of child development confirm the need for interventions tailored to a patient's needs and abilities during the course of treatment.}, language = {en} } @article{Mueller2023, author = {M{\"u}ller, Carsten}, title = {Personality Traits and Physical Activity: Insights from German University Students}, series = {European Journal of Investigation in Health, Psychology and Education}, volume = {13}, journal = {European Journal of Investigation in Health, Psychology and Education}, number = {8}, doi = {10.25974/fhms-16872}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-168729}, pages = {1423 -- 1440}, year = {2023}, abstract = {This study explores the intriguing relationship between personality traits, self-rated fitness (SRF), and physical activity (PA) variables among German university students (N = 4244) and sheds light on the impact of personality on adherence to PA guidelines. Employing an online cross-sectional study, the short-form of the Big Five Inventory-2 assessed five domains of personality traits (Extraversion, Negative Emotionality, Agreeableness, conscientiousness, and Open-Mindedness). PA, including sitting time, was assessed using the International Physical Activity Questionnaire (short-form). SRF and muscle-strengthening activities (MSA) were assessed with one item each. Multiple linear and logistic regression analyses examined associations of individual personality trait domains and all domains combined with SFR, PA variables, and adherence to PA guidelines, controlling for sociodemographic, behavioral, and (mental) health covariates. Most reliably, Extraversion and Conscientiousness revealed positive associations with PA variables, while Negative Emotionality yielded inverse relationships with PA variables. For instance, each unit increase in Extraversion corresponded to an additional 17 min of weekly MSA. On the contrary, daily sitting time was unrelated to personality. Of note, high Open-Mindedness was associated with lower odds for adhering to current PA guidelines. The findings have implications for developing targeted interventions that promote a physically active lifestyle and support students' well-being and academic success.}, language = {en} } @article{MuellerWinterRosenbaumetal.2015, author = {M{\"u}ller, Carsten and Winter, Corinna and Rosenbaum, Dieter and Boos, Joachim and Gosheger, Georg and Hardes, Jendrik and Vieth, Volkier}, title = {Sport- und Bewegungstherapie mit Kindern und Jugendlichen w{\"a}hrend der Akuttherapie eines Knochentumors der unteren Extremit{\"a}t. Entwicklung des Aktivit{\"a}tsniveaus und Einfluss auf die Knochendichte}, series = {P{\"a}diatrische Praxis}, volume = {83}, journal = {P{\"a}diatrische Praxis}, number = {4}, issn = {0030-9346}, pages = {673 -- 683}, year = {2015}, abstract = {Tumorerkrankungen im Kindes- und Jugendalter haben w{\"a}hrend der Akuttherapie und dar{\"u}ber hinaus einen signifikanten Einfluss auf das Aktivit{\"a}tsniveau und den Knochenstoffwechsel. Dieser Beitrag untersucht, inwiefern bewegungstherapeutische Interventionen das Aktivit{\"a}tsniveau und damit auch die Entwicklung der Knochendichte w{\"a}hrend der Akuttherapie von Patienten mit Knochentumoren der unteren Extremit{\"a}t beeinflussen k{\"o}nnen. 21 Kinder und Jugendliche im Alter von 13,6 Jahren konnten in die Untersuchung aufgenommen werden und wurden einer Interventions- (IG, n=10) oder einer Kontrollgruppe (KG, n=11) zugeordnet. S{\"a}mtliche Patienten erhielten die standardisierte physiotherapeutische Behandlung. Der IG wurde zus{\"a}tzlich ein Sportprogramm angeboten, das an jedem zweiten Tag w{\"a}hrend der Akuttherapie absolviert werden sollte. Die Knochendichte der Lendenwirbels{\"a}ule und des nicht betroffenen Schenkelhalses wurde mittels Dual-R{\"o}ntgen-Absorptiometrie (DXA) w{\"a}hrend der Lokaltherapie, sowie nach sechs und nach zw{\"o}lf Monaten erfasst. Die Alltagsaktivit{\"a}ten wurden zeitgleich nach sechs und zw{\"o}lf Monaten im heimischen Umfeld objektiv mit einem Beschleunigungsaufnehmer {\"u}ber einen Zeitraum von sieben Tage erhoben. In beiden Patientengruppen wurde w{\"a}hrend der Akuttherapie eine deutliche Reduktion der Knochendichte beobachtet. Im Gruppenvergleich zeigten sich in der Entwicklung der Knochendichte zwischen den Messzeitpunkten kleine bis große Effekte zugunsten der bewegungstherapeutischen Intervention. Zudem weist die Interventionsgruppe im Vergleich zur Kontrollgruppe durchweg signifikant h{\"o}here Alltagsaktivit{\"a}ten (durchschnittliche Schrittzahl pro Tag und Phasen hoher k{\"o}rperlicher Aktivit{\"a}t) auf. Die Ergebnisse belegen die Durchf{\"u}hrbarkeit und den Nutzen eines therapiebegleitenden Sportprogramms f{\"u}r Kinder und Jugendliche w{\"a}hrend der Akutphase der Behandlung einer Knochentumorerkrankung der unteren Extremit{\"a}t.}, language = {de} } @article{GabrysThielTallneretal.2015, author = {Gabrys, Lars and Thiel, Christian and Tallner, Alexander and Wilms, Britta and M{\"u}ller, Carsten and Kahlert, Daniela and Jekauc, Darko and Frick, Fabienne and Schulz, Holger and Sprengeler, Ole and Hey, Stefan and Kobel, Susanne and Vogt, Lutz}, title = {Akzelerometrie zur Erfassung k{\"o}rperlicher Aktivit{\"a}t. Empfehlungen zur Methodik}, series = {Sportwissenschaft}, volume = {45}, journal = {Sportwissenschaft}, number = {1}, doi = {10.1007/s12662-014-0349-5}, pages = {1 -- 9}, year = {2015}, abstract = {Die Akzelerometrie ist als objektives Messverfahren zur Erfassung k{\"o}rperlicher Aktivit{\"a}t im Feld mit guten psychometrischen Eigenschaften und Anwendbarkeit auch bei großen Stichproben international etabliert. Akzelerometer zeichnen Intensit{\"a}t und Dauer ein- oder mehraxialer Beschleunigungen auf. Umf{\"a}nge leichter, moderater und intensiver k{\"o}rperlicher Aktivit{\"a}ten sowie Zeiten der Inaktivit{\"a}t k{\"o}nnen mit Hilfe von Cut-point-Modellen abgegrenzt, sowie der Energieumsatz auf Basis von Regressionsmodellen gesch{\"a}tzt werden. Allerdings bleibt die Vergleichbarkeit von Ergebnissen aufgrund unterschiedlicher Modelle, Trageprotokolle, Kalibrationsverfahren und Ergebnisdarstellungen schwierig. Die vorliegenden Empfehlungen, Perspektiven und Limitationen der Messmethodik wurden unter Beteiligung aller Autoren erarbeitet und im Konsens verabschiedet. Aktuell kann kein Ger{\"a}temodell pauschal empfohlen werden, da die Wahl des Ger{\"a}tes von Forschungsfrage, -design und Zielgruppe abh{\"a}ngt. F{\"u}r ein m{\"o}glichst objektives Abbild des habituellen Bewegungsverhaltens werden ein Messzeitraum von mindestens 7 Tagen inklusive einem Wochenendtag und eine Tragedauer von mindestens 10 h pro Tag bei Erwachsenen empfohlen. Zur Vermeidung von Verzerrungen aufgrund aggregierter Daten sollten m{\"o}glichst kurze Epochenl{\"a}ngen gew{\"a}hlt bzw. nicht vorprozessierte Rohwerte gespeichert werden. F{\"u}r Erwachsene gilt das Cut-point-Modell von Freedson et al. (1998) zur Bestimmung unterschiedlicher Aktivit{\"a}tskategorien als etabliert. Methodische Limitationen bestehen insbesondere bei der Erfassung von Aktivit{\"a}ten mit geringer oder sehr hoher Beschleunigung des observierten K{\"o}rpersegments, wie Fahrradfahren oder Krafttraining, und bei der Berechnung des Energieumsatzes auf Basis linearer Regressionsmodelle.}, language = {de} } @article{KoestersBockholtMuelleretal.2014, author = {K{\"o}sters, Clemens and Bockholt, Sebastian and M{\"u}ller, Carsten and Winter, Corinna and Rosenbaum, Dieter and Raschke, Michael J. and Ochmann, Sabine}, title = {Comparing the outcomes between Chopart, Lisfranc and multiple metatarsal shaft fractures}, series = {Archives of Orthopaedic and Trauma Surgery}, volume = {134}, journal = {Archives of Orthopaedic and Trauma Surgery}, doi = {10.1007/s00402-014-2059-8}, pages = {1397 -- 1404}, year = {2014}, abstract = {Objectives Complex midfoot injuries could lead to severe functional impairment of mobility and quality of daily living. Aim of this study was to compare the clinical and functional outcomes of Chopart, Lisfranc fractures and multiple metatarsal shaft fractures. Design Retrospective case series. Setting Level one trauma center. Intervention Open or closed reduction and internal fixation with screws, K-wires, plates, external fixation or combination of different technics. Main outcome measurements The American Orthopaedic Foot and Ankle Society (AOFAS) Midfoot Score and the Maryland Foot Score were used to assess pain and functional outcome. 3D gait analysis, pedobarographic analysis and radiologic examinations were performed. The activity level was measured by a step counting accelerometer. All results were compared to an age-matched healthy control group. Results 24 patients with a median age of 44 years (16-72) were included: 12 patients with multiple metatarsal shaft fractures, 6 patients with Chopart and 6 patients with Lisfranc fractures. The median follow-up was 2.6 years. The pedobarographic analysis reports reduced contact time of the total foot (p = 0.08), the forefoot (p = 0.008) and the hallux (p = 0.015) for the injured foot. A median score of 64 for the SF-36, 64 for the AOFAS Midfoot Score and 73 for the Maryland Foot Score indicated a poor restoration of foot function. Multiple metatarsal shaft fractures presented a significantly lower walking speed (p = 0.03) and cadence (p = 0.04). Conclusion The worst results were reported for multiple metatarsal shaft fractures on outcome scores, pedobarography, gait analysis and activity. Metatarsal serial fractures should not be underestimated as well as Chopart and Lisfranc fractures.}, language = {en} } @article{MuellerWinterBoosetal.2014, author = {M{\"u}ller, Carsten and Winter, Corinna and Boos, Joachim and Gosheger, Georg and Hardes, Jendrik and Vieth, Volker and Rosenbaum, Dieter}, title = {Effects of an exercise intervention on bone mass in pediatric bone tumor patients}, series = {International Journal of Sports Medicine}, volume = {35}, journal = {International Journal of Sports Medicine}, number = {08}, doi = {10.1055/s-0033-1358475}, pages = {696 -- 703}, year = {2014}, abstract = {The aim was to evaluate the effects of additional exercises during inpatient stays on bone mass in pediatric bone tumor patients. 21 patients were non-randomly allocated either to the exercise group (n=10) or the control group (n=11). DXA of the lumbar spine, the non-affected femur and both calcanei was performed after completion of neoadjuvant chemotherapy (baseline), as well as 6 and 12 months after baseline. Bone mineral content (BMC), bone mineral density (BMD) and height-corrected lumbar spine Z-scores were determined. Group changes after 6 and 12 months were compared by covariance analyses. Additionally, daily physical activities (PA) were assessed by means of accelerometry. After adjusting for initial age, height and weight, mean reductions in lumbar spine and femoral BMC were lower in the exercise group (not significant). Effect sizes during the observational period for lumbar spine and femur BMC were generally small (partial η²=0.03). The exercise group demonstrated substantially higher PA levels in terms of gait cycles per day, per hour and moderate PA (activities above 40 gait cycles per minute). Additional exercises for bone tumor patients are feasible during hospitalization. Though the intervention did not influence BMC, it appeared beneficial regarding PA promotion with respect to volume and intensity.}, language = {en} } @article{MuellerSchlueterSchnieders2013, author = {M{\"u}ller, Carsten and Schl{\"u}ter, Christian and Schnieders, Daniel}, title = {Evaluation einer individualisierten, arbeitsplatzbezogenen Trainingsintervention}, series = {Bewegungstherapie und Gesundheitssport}, volume = {29}, journal = {Bewegungstherapie und Gesundheitssport}, number = {5}, doi = {10.1055/s-0033-1345512}, pages = {202 -- 209}, year = {2013}, abstract = {Im Rahmen der Implementierung eines Gesundheitsf{\"o}rderungsprogramms bei der Miele \& Cie. KG wurde ein individuelles, arbeitsplatzbezogenes Training als Pilotprojekt f{\"u}r Bandarbeiter und Emaillierer {\"u}ber einen Zeitraum von 12 Wochen in Kombination mit einem pers{\"o}nlichen Heimtrainingsplan und ergonomischer Beratung angeboten. Zu Beginn und nach Abschluss der Intervention wurden der Rumpfkraftausdauertest nach McGill, der Functional Movement ScreenTM (FMSTM) sowie eine Gesundheitsfragebogenerhebung (SF-36) durchgef{\"u}hrt. In den motorischen Testverfahren konnte eine Reduzierung muskul{\"a}rer Dysbalancen der Rumpfkraftausdauer im Rechts-links-Vergleich um 50 \% (p = 0,006), eine Verbesserung des Summenscores im FMSTM um 2,0 ± 2,8 Punkte (p < 0,001) sowie eine Minimierung schmerzhafter Bewegungsabl{\"a}ufe um 40 \% nachgewiesen werden. Die Ergebnisse des SF-36 deuten auf eine moderate Steigerung des subjektiv empfundenen Gesundheitszustands f{\"u}r die psychischen Items hin. Die Ergebnisse belegen, dass ein individualisiertes und arbeitsplatzbezogenes k{\"o}rperliches Training bereits {\"u}ber einen kurzen Zeitraum die Kraftausdauer der Rumpfmuskulatur und grundlegende Bewegungsmuster signifikant verbessern sowie schmerzhafte Bewegungsabl{\"a}ufe positiv beeinflussen und somit das Risiko f{\"u}r zuk{\"u}nftige Funktionsst{\"o}rungen des Bewegungsapparates reduzieren kann.}, language = {de} } @article{MuellerSchlueterSchnieders2013, author = {M{\"u}ller, Carsten and Schl{\"u}ter, Christian and Schnieders, Daniel}, title = {Richtig aufw{\"a}rmen: Mehr Abwechslung - weniger Verletzung}, series = {Sportpraxis}, volume = {54}, journal = {Sportpraxis}, number = {1\&2}, issn = {0176-5906}, pages = {53 -- 56}, year = {2013}, abstract = {Beim hier vorgestellten „functional warm-up" werden die Muskeln durch eine Kombination aus Halte{\"u}bungen, Abbremsen und Beschleunigungen erw{\"a}rmt und gedehnt, um das Verletzungsrisiko im funktionellen Training („functional training") zu verringern. Die dargestellte {\"U}bungsreihe folgt dem Grundsatz „vom Einfachen zum Schweren" und wird im Gehen auf einer Strecke von 10 bis 20 Metern durchgef{\"u}hrt.}, language = {de} } @article{MuellerFuchsWinteretal.2011, author = {M{\"u}ller, Carsten and Fuchs, Katharina and Winter, Corinna and Rosenbaum, Dieter and Schmidt, Carolin and Bullmann, Viola and Schulte, Tobias}, title = {Prospective evaluation of physical activity in patients with idiopathic scoliosis or kyphosis receiving brace treatment}, series = {European Spine Journal}, volume = {20}, journal = {European Spine Journal}, doi = {10.1007/s00586-011-1791-9}, pages = {1127 -- 1136}, year = {2011}, abstract = {Bracing is an established method of conservative treatment for adolescent idiopathic scoliosis and kyphosis. Compliance among adolescents is frequently inadequate due to the discomfort of wearing a brace, cosmetic issues, and fear on the part of patients and parents that bracing may reduce everyday physical activities. The aim of this prospective, controlled study was to objectify the impact of spinal bracing on daily step activity in patients receiving conservative treatment for adolescent idiopathic scoliosis (AIS) or adolescent kyphosis (AK). Forty-eight consecutive patients (mean age 13.4 ± 2.3 years), consisting of 38 AIS patients (33 girls, 5 boys) and 10 AK patients (6 girls, 4 boys) were included. Once the decision to carry out bracing had been taken and while the patients were waiting for the individual brace to be built, step activity was assessed without braces by means of step activity monitoring (SAM) for seven consecutive days. After 8 weeks of brace wearing, step activity was assessed during regular brace treatment, again for seven consecutive days. In addition, brace-wearing times were simultaneously recorded using temperature probes implanted in the braces to measure compliance. Before and during brace treatment, patients completed the Scoliosis Research Society (SRS-22) questionnaire. The SAM was worn for an average of 12.7 ± 1.5 h/day during the first measurement and 12.3 ± 1.9 h on average during the second measurement. The mean gait cycles (GCs) per day and per hour before treatment were 5,036 ± 1,465 and 395 ± 105, respectively. No significant reduction in step activity was found at the follow-up measurement during bracing, at 4,880 ± 1,529 GCs/day and 403 ± 144 GCs/h. Taking the 23-h recommended time for brace wearing as a basis (100\%), patients wore the brace for 72.7 ± 27.6\% of the prescribed time, indicating an acceptable level of compliance. Girls showed a higher compliance level (75.6 ± 25.6\%) in comparison with boys (56.7 ± 31.9\%), although the difference was not significant (P = 0.093). The SRS-22 total score showed no differences between the two measurements (2.57 ± 0.23 vs. 2.56 ± 0.28). Implementing a simultaneous and objective method of assessing step activity and brace-wearing times in everyday life proved to be feasible, and it expands the information available regarding the impact of bracing on patients' quality of life. The results clearly show that brace treatment does not negatively interfere with daily step activity in AIS and AK patients. This is an important finding that should help reduce patients' and parents' worries concerning bracing.}, language = {en} } @article{MuellerWinterMogwitzetal.2011, author = {M{\"u}ller, Carsten and Winter, Corinna and Mogwitz, Marie Sophie and Rosenbaum, Dieter}, title = {Validierung von neun Bewegungssensoren bei Kindern und Erwachsenen}, series = {Sportwissenschaft}, volume = {41}, journal = {Sportwissenschaft}, number = {1}, doi = {10.1007/s12662-011-0167-y}, pages = {8 -- 15}, year = {2011}, abstract = {Zur Bestimmung der Messgenauigkeit handels{\"u}blicher Bewegungssensoren wurden ein Akzelerometer und acht Pedometer von Schulkindern und jungen Erwachsenen unter kontrollierten Bedingungen und unter Alltagsbedingungen im Rahmen einer 24-st{\"u}ndigen Aktivit{\"a}tsmessung getragen. Die pr{\"a}zisesten Ergebnisse unter kontrollierten Bedingungen wurden mit einem piezoelektrischen Pedometer erzielt. Die absoluten Abweichungen (Median) lagen f{\"u}r diesen Schrittz{\"a}hler bei den Kindern zwischen 0,2 und 1,0\%, bei den Erwachsenen zwischen 0,2 und 1,4\%. Die absoluten Abweichungen f{\"u}r den Akzelerometer lagen zwischen 0,8 und 3,1\% f{\"u}r die Schulkinder sowie zwischen 0,6 und 3,2\% f{\"u}r die Erwachsenen. Die Messpr{\"a}zision stieg unter kontrollierten Bedingungen mit zunehmender Bewegungsgeschwindigkeit an. Besonders bei den Schulkindern wiesen einige Schrittz{\"a}hler mit Pendelarm-Mechanismus hohe absolute Abweichungen von {\"u}ber 50\% auf. Die Unterschiede unter Alltagsbedingungen verdeutlichen, dass Schrittzahlangaben diverser Monitore nicht direkt miteinander verglichen werden k{\"o}nnen. In jedem Fall sollten Schrittz{\"a}hler vor ihrem Einsatz in wissenschaftlichen Untersuchungen auf G{\"u}tekriterien wie Validit{\"a}t und Reliabilit{\"a}t gestestet werden.}, language = {de} } @article{WinterMuellerHardesetal.2011, author = {Winter, Corinna and M{\"u}ller, Carsten and Hardes, Jendrik and Boos, Joachim and Gosheger, Georg and Rosenbaum, Dieter}, title = {Pediatric patients with a malignant bone tumor: when does functional assessment make sense?}, series = {Supportive Care in Cancer}, volume = {20}, journal = {Supportive Care in Cancer}, doi = {10.1007/s00520-010-1077-5}, pages = {127 -- 133}, year = {2011}, abstract = {Purpose The diagnosis of a malignant bone tumor in the lower limb is a risk factor for physical disability, limiting physical performance. Walking ability especially, which is essential for most activities of daily living, is limited in those patients. In the present study, the extent of limitations during the course of treatment was investigated to determine when the assessment of functional parameters is meaningful in those patients. Methods In the present study, activity levels were determined in 20 patients with a malignant bone tumor in the lower limb who received endoprosthetic replacement of the affected bone and in 20 healthy individuals. A uniaxial accelerometer was used to investigate patients at five different time points after surgery. Results Patients performed significantly less amounts and intensities of activity than control individuals at all measurements. Significant increases in the volume of activity were observed after cessation of treatment. However, the intensity of activity only showed minor increases. Patients experiencing complications of surgery revealed greater restriction than those without even 18 months after surgery. Conclusions After cessation of treatment for their disease, patients recovered markedly and showed great improvements in physical activity. However, some limitations appeared to persist. Comparisons with patients with longer follow-up revealed that meaningful functional assessment does not make sense within the first 12 months after surgery. More research is needed to show if longer follow-up periods reveal further improvements. Based on such information, it should be more promising to develop individually tailored activity recommendations and intervention programs.}, language = {en} }