@article{KahlertBrand2011,
  author    = {Kahlert, Daniela and Brand, Ralf},
  title     = {Questionnaires for assessing physical activity different response scale categories influence responses concerning health- and sport-related cognitions},
  series = {Zeitschrift f{\"u}r Gesundheitspsychologie},
  volume    = {19},
  journal   = {Zeitschrift f{\"u}r Gesundheitspsychologie},
  number    = {2},
  publisher = {Hogrefe},
  address   = {G{\"o}ttingen},
  issn      = {0943-8149},
  doi       = {10.1026/0943-8149/a000044},
  pages     = {96 -- 100},
  year      = {2011},
  abstract  = {The present study examines whether the use of different frequency scales in questionnaires about physical activity influences respondents' own estimation of their activity, as well as subsequent measurements of health- und sport-related cognitions and evaluations. Using a randomized research design we recruited a sample of 118 participants. One group received a high frequency scale for assessing their exercise frequency with the response categories "never", "less often", "once a month", "once a week", or "most days." The other group answered with a medium frequency scale with the alternatives "never", "less often", " once every few months", "once a month", and " once a week or more often." As dependent variables all participants judged the subjective importance of physical activity and their health-related quality of life (WHO-QOL-bref). Results indicate the expected response errors, owing to the fact that using a high-frequency scale produces higher levels of self-reported physical activity (Cramer's V = .30). Corresponding to this the subjective importance of physical activity increased (d = .37) and the health-related quality of life was judged to be better (d = .36). Such artefacts might be eliminated by using standardized formulations such as "I exercise... times per week/month for... minutes."},
  language  = {de}
}
@phdthesis{Hoehne2011,
  author    = {H{\"o}hne, Janet},
  title     = {Aktivit{\"a}ts- und Herzfrequenz-Monitoring zur Erfassung der Bewegungszeit und der Bewegungsintensit{\"a}t im schulischen und außerschulischen Kontext von Grundsch{\"u}lern im Land Brandenburg},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-57937},
  school      = {Universit{\"a}t Potsdam},
  year      = {2011},
  abstract  = {"Kinderwelt ist Bewegungswelt" (Schmidt, 1997, S. 156, zitiert nach Schmidt, Hartmann-Tews \& Brettschneider, 2003, S. 31). Das kindliche Bewegungsverhalten hat sich bereits im Grundschulalter ver{\"a}ndert, so dass sich Bewegungsaktivit{\"a}ten von Kindern erheblich unterscheiden und keineswegs mehr verallgemeinert werden k{\"o}nnen. Richtet man den Fokus auf die Frage „Wie bewegt sind unsere Kinder?" so scheint diese von den Medien bereits beantwortet zu sein, da dort von ansteigendem Bewegungsmangel der heutigen Kinder gegen{\"u}ber fr{\"u}heren Generationen berichtet wird. Wenn es in den Diskussionen um den Gesundheitszustand unserer Kinder geht, nimmt die k{\"o}rperlich-sportliche Aktivit{\"a}t eine entscheidende Rolle ein. Bewegungsmangel ist hierbei ein zentraler Begriff der in der {\"O}ffentlichkeit diskutiert wird. Bei der Betrachtung der einzelnen Studien f{\"a}llt auf, dass deutliche Defizite in der Messung der k{\"o}rperlich-sportlichen Aktivit{\"a}t bestehen. Zentraler Kritikpunkt in den meisten Studien ist die subjektive Erfassung der k{\"o}rperlich-sportlichen Aktivit{\"a}t. Ein Großteil bisheriger Untersuchungen zum Bewegungsverhalten basiert auf Beobachtungen, Befragungen oder Bewegungstageb{\"u}chern. Diese liefern ausschließlich zum Teil subjektive Einsch{\"a}tzungen der Kinder oder Eltern {\"u}ber die tats{\"a}chliche Bewegungszeit und -intensit{\"a}t. Das objektive Erfassen der Aktivit{\"a}t bzw. Inaktivit{\"a}t ist zwar seit einigen Jahren zentraler Gegenstand vieler Studien, dennoch gilt es, dieses noch sachkundiger zu l{\"o}sen, um subjektive und objektive Daten zu vergleichen. Um dem Bewegungsmangel der heutigen Kinder entgegenzuwirken, sind empirisch abgesicherte Erkenntnisse {\"u}ber die Bedingungsfaktoren und die Folgen des ver{\"a}nderten Bewegungsverhaltens dringend n{\"o}tig. Die Quer- und L{\"a}ngsschnittuntersuchung umfasst die Bereiche Anthropometrie, die Erfassung der k{\"o}rperlich-sportlichen Aktivit{\"a}t und die Herzfrequenzmessung {\"u}ber 24h. F{\"u}r die Studie konnten 106 Jungen und M{\"a}dchen im Zeitraum von Januar 2007 bis April 2009 rekrutiert und {\"u}berpr{\"u}ft werden. Die physiologischen Parameter wurden mit Hilfe des ACTIHEART-Messsytems aufgezeichnet und berechnet. Die Ergebnisse zur k{\"o}rperlich-sportlichen Aktivit{\"a}t wurden in die Untersuchungsabschnitte Schulzeit gesamt, Pause, Sportunterricht, Nachmittag und 24h unterteilt. Durch das Messsystem werden die Bewegungsaktivit{\"a}t und die Herzfrequenz synchron aufgezeichnet. Das System nimmt die Beschleunigungswerte des K{\"o}rpers auf und speichert sie im frei w{\"a}hlbaren Zeitintervall, Short oder Long Term, in Form von „activity counts" ab. Das Messsytem berechnet weiterhin die Intensit{\"a}t k{\"o}rperlicher Aktivit{\"a}t.},
  language  = {de}
}
@article{JekaucWagnerKahlertetal.2013,
  author    = {Jekauc, Darko and Wagner, Matthias O. and Kahlert, Daniela and Woll, Alexander},
  title     = {Reliability and validity of MoMo-Physical-Activity-Questionnaire for Adolescents (MoMo-AFB)},
  series = {Diagnostica},
  volume    = {59},
  journal   = {Diagnostica},
  number    = {2},
  publisher = {Hogrefe},
  address   = {G{\"o}ttingen},
  issn      = {0012-1924},
  doi       = {10.1026/0012-1924/a000083},
  pages     = {100 -- 111},
  year      = {2013},
  abstract  = {This paper presents the psychometric properties of the MoMo-AFB (Bos, Worth, Opper, Oberger \& Woll, 2009), a questionnaire designed to measure the physical activity of children and adolescents. The MoMo-AFB consists of 28 items, covering the fields of everyday physical activity, sports within and outside of organised clubs, physical education as well as compliance with physical activity guidelines. A study was conducted with 109 boys and 87 girls aged between 9 and 17 years. The MoMo-AFB was given on two separate occasions to evaluate reliability and was compared with accelerometry data of ActiGraph GT1X to evaluate validity. The overall kappa/weighted kappa coefficient for the one-week testretest reliability was .66 (SD = .19) and the overall intraclass correlation (ICC) .68. Self-reported and accelerometer-measured average weekly time spent performing moderate to vigorous physical activity were significantly correlated (Spearman r = .29). Regarding reliability and validity, the MoMo-AFB is comparable with other international published physical activity questionnaires for adolescents.},
  language  = {de}
}
@phdthesis{Rietsch2013,
  author    = {Rietsch, Katrin},
  title     = {Body composition especially external skeletal robustness in association with physical activity and recreation in pre-pubertal children : a national and international investigation},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-66913},
  school      = {Universit{\"a}t Potsdam},
  year      = {2013},
  abstract  = {In children the way of life, nutrition and recreation changed in recent years and as a consequence body composition shifted as well. It is established that overweight belongs to a global problem. In addition, German children exhibit a less robust skeleton than ten years ago. These developments may elevate the risk of cardiovascular diseases and skeletal modifications. Heredity and environmental factors as nutrition, socioeconomic status, physical activity and inactivity influence fat accumulation and the skeletal system. Based on these negative developments associations between type of body shape, skeletal measures and physical activity; relations between external skeletal robustness, physical activity and inactivity, BMI and body fat and also the progress of body composition especially external skeletal robustness in comparison in Russian and German children were investigated. In a cross-sectional study 691 German boys and girls aged 6 to 10 years were examined. Anthropometric measurements were taken and questionnaires about physical activity and inactivity were answered by parents. Additionally, pedometers were worn to determinate the physical activity in children. To compare the body composition in Russian and German children data from the years 2000 and 2010 were used. The study has shown that pyknomorphic individuals exhibit the highest external skeletal robustness and leptomorphic ones the lowest. Leptomorphic children may have a higher risk for bone diseases in adulthood. Pyknomorphic boys are more physically active by tendency. This is assessed as positive because pyknomorphic types display the highest BMI and body fat. Results showed that physical activity may reduce BMI and body fat. In contrast physical inactivity may lead to an increase of BMI and body fat and may rise with increasing age. Physical activity encourages additionally a robust skeleton. Furthermore external skeletal robustness is associated with BMI in order that BMI as a measure of overweight should be consider critically. The international 10-year comparison has shown an increase of BMI in Russian children and German boys. Currently, Russian children exhibit a higher external skeletal robustness than the Germans. However, in Russian boys skeleton is less robust than ten years ago. This trend should be observed in the future as well in other countries. All in all, several measures should be used to describe health situation in children and adults. Furthermore, in children it is essential to support physical activity in order to reduce the risk of obesity and to maintain a robust skeleton. In this way diseases are able to prevent in adulthood.},
  language  = {en}
}
@article{MeyerErnstSchottetal.2015,
  author    = {Meyer, Ursina and Ernst, Dominique and Schott, Silvia and Riera, Claudia and Hattendorf, Jan and Romkes, Jacqueline and Granacher, Urs and G{\"o}pfert, Beat and Kriemler, Susi},
  title     = {Validation of two accelerometers to determine mechanical loading of physical activities in children},
  series = {Journal of sports sciences},
  volume    = {33},
  journal   = {Journal of sports sciences},
  number    = {16},
  publisher = {Routledge, Taylor \& Francis Group},
  address   = {Abingdon},
  issn      = {0264-0414},
  doi       = {10.1080/02640414.2015.1004638},
  pages     = {1702 -- 1709},
  year      = {2015},
  abstract  = {The purpose of this study was to assess the validity of accelerometers using force plates (i.e., ground reaction force (GRF)) during the performance of different tasks of daily physical activity in children. Thirteen children (10.1 (range 5.4-15.7)years, 3 girls) wore two accelerometers (ActiGraph GT3X+ (ACT), GENEA (GEN)) at the hip that provide raw acceleration signals at 100Hz. Participants completed different tasks (walking, jogging, running, landings from boxes of different height, rope skipping, dancing) on a force plate. GRF was collected for one step per trial (10 trials) for ambulatory movements and for all landings (10 trials), rope skips and dance procedures. Accelerometer outputs as peak loading (g) per activity were averaged. ANOVA, correlation analyses and Bland-Altman plots were computed to determine validity of accelerometers using GRF. There was a main effect of task with increasing acceleration values in tasks with increasing locomotion speed and landing height (P<0.001). Data from ACT and GEN correlated with GRF (r=0.90 and 0.89, respectively) and between each other (r=0.98), but both accelerometers consistently overestimated GRF. The new generation of accelerometer models that allow raw signal detection are reasonably accurate to measure impact loading of bone in children, although they systematically overestimate GRF.},
  language  = {en}
}
@article{SalzwedelRabeZahnetal.2017,
  author    = {Salzwedel, Annett and Rabe, Sophie and Zahn, Thomas and Neuwirth, Julia and Eichler, Sarah and Haubold, Kathrin and Wachholz, Anne and Reibis, Rona Katharina and V{\"o}ller, Heinz},
  title     = {User Interest in Digital Health Technologies to Encourage Physical Activity},
  series = {JMIR. Mhealth \& Uhealth},
  volume    = {5},
  journal   = {JMIR. Mhealth \& Uhealth},
  number    = {4},
  publisher = {JMIR Publications},
  address   = {Toronto},
  doi       = {10.2196/mhealth.7192},
  year      = {2017},
  abstract  = {Background: Although the benefits for health of physical activity (PA) are well documented, the majority of the population is unable to implement present recommendations into daily routine. Mobile health (mHealth) apps could help increase the level of PA. However, this is contingent on the interest of potential users. Objective: The aim of this study was the explorative, nuanced determination of the interest in mHealth apps with respect to PA among students and staff of a university. Methods: We conducted a Web-based survey from June to July 2015 in which students and employees from the University of Potsdam were asked about their activity level, interest in mHealth fitness apps, chronic diseases, and sociodemographic parameters. Results: A total of 1217 students (67.30\%, 819/1217; female; 26.0 years [SD 4.9]) and 485 employees (67.5\%, 327/485; female; 42.7 years [SD 11.7]) participated in the survey. The recommendation for PA (3 times per week) was not met by 70.1\% (340/485) of employees and 52.67\% (641/1217) of students. Within these groups, 53.2\% (341/641 students) and 44.2\% (150/340 employees)—independent of age, sex, body mass index (BMI), and level of education or professional qualification—indicated an interest in mHealth fitness apps. Conclusions: Even in a younger, highly educated population, the majority of respondents reported an insufficient level of PA. About half of them indicated their interest in training support. This suggests that the use of personalized mobile fitness apps may become increasingly significant for a positive change of lifestyle.},
  language  = {en}
}
@misc{SalzwedelRabeZahnetal.2017,
  author    = {Salzwedel, Annett and Rabe, Sophie and Zahn, Thomas and Neuwirth, Julia and Eichler, Sarah and Haubold, Kathrin and Wachholz, Anne and Reibis, Rona Katharina and V{\"o}ller, Heinz},
  title     = {User Interest in Digital Health Technologies to Encourage Physical Activity},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-401872},
  pages     = {8},
  year      = {2017},
  abstract  = {Background: Although the benefits for health of physical activity (PA) are well documented, the majority of the population is unable to implement present recommendations into daily routine. Mobile health (mHealth) apps could help increase the level of PA. However, this is contingent on the interest of potential users. Objective: The aim of this study was the explorative, nuanced determination of the interest in mHealth apps with respect to PA among students and staff of a university. Methods: We conducted a Web-based survey from June to July 2015 in which students and employees from the University of Potsdam were asked about their activity level, interest in mHealth fitness apps, chronic diseases, and sociodemographic parameters. Results: A total of 1217 students (67.30\%, 819/1217; female; 26.0 years [SD 4.9]) and 485 employees (67.5\%, 327/485; female; 42.7 years [SD 11.7]) participated in the survey. The recommendation for PA (3 times per week) was not met by 70.1\% (340/485) of employees and 52.67\% (641/1217) of students. Within these groups, 53.2\% (341/641 students) and 44.2\% (150/340 employees)—independent of age, sex, body mass index (BMI), and level of education or professional qualification—indicated an interest in mHealth fitness apps. Conclusions: Even in a younger, highly educated population, the majority of respondents reported an insufficient level of PA. About half of them indicated their interest in training support. This suggests that the use of personalized mobile fitness apps may become increasingly significant for a positive change of lifestyle.},
  language  = {en}
}
@misc{BordeSmithSutherlandetal.2017,
  author    = {Borde, Ron and Smith, Jordan J. and Sutherland, Rachel and Nathan, Nicole and Lubans, David Revalds},
  title     = {Methodological considerations and impact of school-based interventions on objectively measured physical activity in adolescents: a systematic review and meta-analysis},
  series = {Obesity reviews : an official journal of the International Association for the Study of Obesity},
  volume    = {18},
  journal   = {Obesity reviews : an official journal of the International Association for the Study of Obesity},
  publisher = {Wiley},
  address   = {Hoboken},
  issn      = {1467-7881},
  doi       = {10.1111/obr.12517},
  pages     = {476 -- 490},
  year      = {2017},
  abstract  = {Objective: The aims of this systematic review and meta-analysis are (i) to determine the impact of school-based interventions on objectively measured physical activity among adolescents and (ii) to examine accelerometer methods and decision rule reporting in previous interventions. Methods: A systematic search was performed to identify randomized controlled trials targeting adolescents (age: >= 10 years), conducted in the school setting, and reporting objectively measured physical activity. Random effects meta-analyses were conducted to determine the pooled effects of previous interventions on total and moderate-to-vigorous physical activity. Potential moderators of intervention effects were also explored. Results: Thirteen articles met the inclusion criteria, and twelve were included in the meta-analysis. The pooled effects were small and non-significant for both total physical activity (standardized mean difference = 0.02 [95\% confidence interval = -0.13 to 0.18]) and moderate-to-vigorous physical activity (standardized mean difference = 0.24 [95\% confidence interval = -0.08 to 0.56]). Sample age and accelerometer compliance were significant moderators for total physical activity, with a younger sample and higher compliance associated with larger effects. Conclusion: Previous school-based physical activity interventions targeting adolescents have been largely unsuccessful, particularly for older adolescents. There is a need for more high-quality research using objective monitoring in this population. Future interventions should comply with best-practice recommendations regarding physical activity monitoring protocols.},
  language  = {en}
}
@misc{JekaucBrand2017,
  author    = {Jekauc, Darko and Brand, Ralf},
  title     = {Editorial: How do Emotions and Feelings Regulate Physical Activity?},
  series = {Frontiers in psychology},
  volume    = {8},
  journal   = {Frontiers in psychology},
  publisher = {Frontiers Research Foundation},
  address   = {Lausanne},
  issn      = {1664-1078},
  doi       = {10.3389/fpsyg.2017.01145},
  pages     = {3},
  year      = {2017},
  language  = {en}
}
@misc{WippertWiebking2018,
  author    = {Wippert, Pia-Maria and Wiebking, Christine},
  title     = {Stress and Alterations in the Pain Matrix},
  series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  number    = {438},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-412058},
  pages     = {11},
  year      = {2018},
  abstract  = {The genesis of chronic pain is explained by a biopsychosocial model. It hypothesizes an interdependency between environmental and genetic factors provoking aberrant long-term changes in biological and psychological regulatory systems. Physiological effects of psychological and physical stressors may play a crucial role in these maladaptive processes. Specifically, long-term demands on the stress response system may moderate central pain processing and influence descending serotonergic and noradrenergic signals from the brainstem, regulating nociceptive processing at the spinal level. However, the underlying mechanisms of this pathophysiological interplay still remain unclear. This paper aims to shed light on possible pathways between physical (exercise) and psychological stress and the potential neurobiological consequences in the genesis and treatment of chronic pain, highlighting evolving concepts and promising research directions in the treatment of chronic pain. Two treatment forms (exercise and mindfulness-based stress reduction as exemplary therapies), their interaction, and the dose-response will be discussed in more detail, which might pave the way to a better understanding of alterations in the pain matrix and help to develop future prevention and therapeutic concepts},
  language  = {en}
}
@article{WippertWiebking2018,
  author    = {Wippert, Pia-Maria and Wiebking, Christine},
  title     = {Stress and Alterations in the Pain Matrix},
  series = {International Journal of Environmental Research and Public Health},
  volume    = {15},
  journal   = {International Journal of Environmental Research and Public Health},
  number    = {4},
  publisher = {MDPI AG},
  address   = {Basel},
  issn      = {1660-4601},
  doi       = {10.3390/ijerph15040785},
  pages     = {1 -- 11},
  year      = {2018},
  abstract  = {The genesis of chronic pain is explained by a biopsychosocial model. It hypothesizes an interdependency between environmental and genetic factors provoking aberrant long-term changes in biological and psychological regulatory systems. Physiological effects of psychological and physical stressors may play a crucial role in these maladaptive processes. Specifically, long-term demands on the stress response system may moderate central pain processing and influence descending serotonergic and noradrenergic signals from the brainstem, regulating nociceptive processing at the spinal level. However, the underlying mechanisms of this pathophysiological interplay still remain unclear. This paper aims to shed light on possible pathways between physical (exercise) and psychological stress and the potential neurobiological consequences in the genesis and treatment of chronic pain, highlighting evolving concepts and promising research directions in the treatment of chronic pain. Two treatment forms (exercise and mindfulness-based stress reduction as exemplary therapies), their interaction, and the dose-response will be discussed in more detail, which might pave the way to a better understanding of alterations in the pain matrix and help to develop future prevention and therapeutic concepts},
  language  = {en}
}
@article{SalzwedelRabeZahnetal.2018,
  author    = {Salzwedel, Annett and Rabe, Sophie and Zahn, Thomas and Neuwirth, Julia and Eichler, Sarah and Haubold, Kathrin and Wachholz, Anne and Reibis, Rona Katharina and V{\"o}ller, Heinz},
  title     = {Nutzerinteresse an mobilen digitalen Assistenzsystemen zur F{\"o}rderung k{\"o}rperlicher Aktivit{\"a}t bei Studierenden und Mitarbeitern einer Universit{\"a}t},
  series = {Gesundheitswesen},
  volume    = {80},
  journal   = {Gesundheitswesen},
  number    = {11},
  publisher = {Thieme},
  address   = {Stuttgart},
  issn      = {0941-3790},
  doi       = {10.1055/s-0043-103951},
  pages     = {1023 -- 1025},
  year      = {2018},
  abstract  = {Hintergrund Einem Großteil der Bev{\"o}lkerung gelingt es trotz ausreichenden Wissens um die protektiven Effekte nicht, ausreichende k{\"o}rperliche Aktivit{\"a}t in den Alltag zu integrieren. Digitale Assistenzsysteme k{\"o}nnten hierbei unterst{\"u}tzend eingesetzt werden. Dies setzt jedoch das Interesse potentieller Nutzer voraus. Methode In einer Online-Befragung wurden im Juni/Juli 2015 Mitarbeiter und Studierende der Universit{\"a}t Potsdam zum individuellen Ausmaß der sportlichen Aktivit{\"a}t, dem Interesse an elektronischer Trainingsunterst{\"u}tzung und weiteren Parametern befragt. Ergebnis 1217 Studierende und 485 Mitarbeiter (67,3 bzw. 67,5\% Frauen, 26±4,9 bzw. 42,7±11,7 Jahre) nahmen an der Studie teil. Die empfohlene sportliche Aktivit{\"a}t (≥3 Tage bzw. 150 min/Woche) wurde von 70,1\% der Mitarbeiter und 52,7\% der Studierenden nicht erreicht. Innerhalb dieser Gruppen zeigten 53,2\% (Studierende) bzw. 44,2\% (Mitarbeiter), unabh{\"a}ngig von Alter, Geschlecht, BMI bzw. Bildungsniveau, Interesse an einer elektronischen Trainingsunterst{\"u}tzung. Schlussfolgerung Auch in j{\"u}ngeren Bev{\"o}lkerungsgruppen mit hohem Bildungsniveau ist die Mehrzahl der Personen unzureichend k{\"o}rperlich aktiv. Ein Interesse an Trainingsunterst{\"u}tzung besteht in etwa der H{\"a}lfte dieser sportlich inaktiven Gruppe. Dies legt den Schluss nahe, dass der personalisierte Einsatz mobiler Assistenzsysteme f{\"u}r die positive Beeinflussung des Lebensstils zunehmend an Bedeutung gewinnen k{\"o}nnte.},
  language  = {de}
}
@article{ParfentevaGrothScheffleretal.2019,
  author    = {Parfenteva, Olga and Groth, Detlef and Scheffler, Christiane and Zaharova, Maria F.},
  title     = {Influence of the A/T polymorphism of the FTO gene and sport specializations on the body composition of young Russian athletes},
  series = {Journal of biological and clinical anthropology : Anthropologischer Anzeiger ; Mitteilungsorgan der Gesellschaft f{\"u}r Anthropologie},
  volume    = {76},
  journal   = {Journal of biological and clinical anthropology : Anthropologischer Anzeiger ; Mitteilungsorgan der Gesellschaft f{\"u}r Anthropologie},
  number    = {5},
  publisher = {Schweizerbart},
  address   = {Stuttgart},
  issn      = {0003-5548},
  doi       = {10.1127/anthranz/2019/0943},
  pages     = {401 -- 408},
  year      = {2019},
  abstract  = {Background: The polymorphism in FTO gene (rs9939609) is known to be associated with higher BMI and body fat mass content. However, environmental factors can modify this effect. The purpose of the present study was to investigate an association between sport specialization and the rs9939609 SNP in FTO gene in the cohort of professional and amateur young athletes. Methods: A total number of 250 young individuals 8-18 years old living in Moscow or Moscow district participated in the study. Individuals were divided into 3 groups in accordance with their physical activity level: control group (n = 49), amateurs (n = 67) and professionals (n = 137). Amateur and professional athletes were subdivided into groups according to their sport specialization. Quantile regression was used as a regression model, where the dependent (outcome) variable was BMI, along with percentage of body fat mass, and the independent variables (predictors) were the rs9939609 SNP in FTO gene, physical activity (active versus inactive), sport specialization (aerobic, intermittent sports and martial arts), nationality, level of sport experience (in years), gender and percentage of free fat mass content. Results: The regression analysis revealed that physical activity and sport specialization had greater impact compared to FTO allele in the group of physically active individuals. Physical activity, in particular aerobic, had negative associations with body fat mass and BMI. The rs9939609 SNP in FTO gene is associated with physical activity and aerobic activity. The magnitude of association becomes significantly larger at the upper quantiles of the body fat mass distribution. Conclusion: Physical activity and sport specialization explained more variance in body composition of physically active young individuals compared to the FTO polymorphism. Effect of interaction of physical activity, in particular aerobic, with the FTO polymorphism on body composition of young athletes was found.},
  language  = {en}
}
@article{SchuchStubbsMeyeretal.2019,
  author    = {Schuch, Felipe B. and Stubbs, Brendon and Meyer, Jacob and Heissel, Andreas and Zech, Philipp and Vancampfort, Davy and Rosenbaum, Simon and Deenik, Jeroen and Firth, Joseph and Ward, Philip B. and Carvalho, Andre F. and Hiles, Sarah A.},
  title     = {Physical activity protects from incident anxiety: A meta-analysis of prospective cohort studies},
  series = {Depression and anxiety},
  volume    = {36},
  journal   = {Depression and anxiety},
  number    = {9},
  publisher = {Wiley},
  address   = {Hoboken},
  issn      = {1091-4269},
  doi       = {10.1002/da.22915},
  pages     = {846 -- 858},
  year      = {2019},
  abstract  = {Background Prospective cohorts have suggested that physical activity (PA) can decrease the risk of incident anxiety. However, no meta-analysis has been conducted. Aims To examine the prospective relationship between PA and incident anxiety and explore potential moderators. Methods Searches were conducted on major databases from inception to October 10, 2018 for prospective studies (at least 1 year of follow-up) that calculated the odds ratio (OR) of incident anxiety in people with high PA against people with low PA. Methodological quality was assessed using the Newcastle-Ottawa Scale (NOS). A random-effects meta-analysis was conducted and heterogeneity was explored using subgroup and meta-regression analysis. Results Across 14 cohorts of 13 unique prospective studies (N = 75,831, median males = 50.1\%) followed for 357,424 person-years, people with high self-reported PA (versus low PA) were at reduced odds of developing anxiety (adjusted odds ratio [AOR] = 0.74; 95\% confidence level [95\% CI] = 0.62, 0.88; crude OR = 0.80; 95\% CI = 0.69, 0.92). High self-reported PA was protective against the emergence of agoraphobia (AOR = 0.42; 95\% CI = 0.18, 0.98) and posttraumatic stress disorder (AOR = 0.57; 95\% CI = 0.39, 0.85). The protective effects for anxiety were evident in Asia (AOR = 0.31; 95\% CI = 0.10, 0.96) and Europe (AOR = 0.82; 95\% CI = 0.69, 0.97); for children/adolescents (AOR = 0.52; 95\% CI = 0.29, 0.90) and adults (AOR = 0.81; 95\% CI = 0.69, 0.95). Results remained robust when adjusting for confounding factors. Overall study quality was moderate to high (mean NOS = 6.7 out of 9). Conclusion Evidence supports the notion that self-reported PA can confer protection against the emergence of anxiety regardless of demographic factors. In particular, higher PA levels protects from agoraphobia and posttraumatic disorder.},
  language  = {en}
}
@misc{HermanussenSchefflerGrothetal.2019,
  author    = {Hermanussen, Michael and Scheffler, Christiane and Groth, Detlef and Bogin, Barry},
  title     = {Student work on trends in infant and child growth},
  series = {Journal of biological and clinical anthropology : Anthropologischer Anzeiger : Mitteilungsorgan der Gesellschaft f{\"u}r Anthropologie},
  volume    = {76},
  journal   = {Journal of biological and clinical anthropology : Anthropologischer Anzeiger : Mitteilungsorgan der Gesellschaft f{\"u}r Anthropologie},
  number    = {5},
  publisher = {Schweizerbart},
  address   = {Stuttgart},
  issn      = {0003-5548},
  doi       = {10.1127/anthranz/2019/1052},
  pages     = {363 -- 364},
  year      = {2019},
  language  = {en}
}
@misc{DietrichJacobsZhengetal.2019,
  author    = {Dietrich, Stefan and Jacobs, Simone and Zheng, Ju-Sheng and Meidtner, Karina and Schwingshackl, Lukas and Schulze, Matthias Bernd},
  title     = {Gene-lifestyle interaction on risk of type 2 diabetes},
  series = {Obesity reviews : an official journal of the International Association for the Study of Obesity},
  volume    = {20},
  journal   = {Obesity reviews : an official journal of the International Association for the Study of Obesity},
  number    = {11},
  publisher = {Wiley},
  address   = {Hoboken},
  issn      = {1467-7881},
  doi       = {10.1111/obr.12921},
  pages     = {1557 -- 1571},
  year      = {2019},
  abstract  = {The pathophysiological influence of gene-lifestyle interactions on the risk to develop type 2 diabetes (T2D) is currently under intensive research. This systematic review summarizes the evidence for gene-lifestyle interactions regarding T2D incidence. MEDLINE, EMBASE, and Web of Science were systematically searched until 31 January 2019 to identify publication with (a) prospective study design; (b) T2D incidence; (c) gene-diet, gene-physical activity, and gene-weight loss intervention interaction; and (d) population who are healthy or prediabetic. Of 66 eligible publications, 28 reported significant interactions. A variety of different genetic variants and dietary factors were studied. Variants at TCF7L2 were most frequently investigated and showed interactions with fiber and whole grain on T2D incidence. Further gene-diet interactions were reported for, eg, a western dietary pattern with a T2D-GRS, fat and carbohydrate with IRS1 rs2943641, and heme iron with variants of HFE. Physical activity showed interaction with HNF1B, IRS1, PPAR gamma, ADRA2B, SLC2A2, and ABCC8 variants and weight loss interventions with ENPP1, PPAR gamma, ADIPOR2, ADRA2B, TNF alpha, and LIPC variants. However, most findings represent single study findings obtained in European ethnicities. Although some interactions have been reported, their conclusiveness is still low, as most findings were not yet replicated across multiple study populations.},
  language  = {en}
}
@article{HeisselPietrekRappetal.2019,
  author    = {Heissel, Andreas and Pietrek, Anou F. and Rapp, Michael A. and Heinzel, Stephan and Williams, Geoffrey},
  title     = {Perceived health care climate of older people attending an exercise program},
  series = {Journal of aging and physical activity : JAPA ; the official journal of the International Society for Aging and Physical Activity},
  volume    = {28},
  journal   = {Journal of aging and physical activity : JAPA ; the official journal of the International Society for Aging and Physical Activity},
  number    = {2},
  publisher = {Human Kinetics Publ.},
  address   = {Champaign},
  issn      = {1063-8652},
  doi       = {10.1123/japa.2018-0350},
  pages     = {276 -- 286},
  year      = {2019},
  abstract  = {The role of perceived need support from exercise professionals in improving mental health was examined in a sample of older adults, thereby validating the short Health Care Climate Questionnaire. A total of 491 older people (M = 72.68 years; SD = 5.47) attending a health exercise program participated in this study. Cronbach's alpha was found to be high (alpha = .90). Satisfaction with the exercise professional correlated moderately with the short Health Care Climate Questionnaire mean value (r = .38; p < .01). The mediator analyses yielded support for the self-determination theory process model in older adults by showing both basic need satisfaction and frustration as mediating variables between perceived autonomy support and depressive symptoms. The short Health Care Climate Questionnaire is an economical instrument for assessing basic need satisfaction provided by the exercise therapist from the participant's perspective. Furthermore, this cross-sectional study supported the link from coaching style to the satisfaction/frustration of basic psychological needs, which in turn, predicted mental health. Analyses of criterion validity suggest a revision of the construct by integrating need frustration.},
  language  = {en}
}
@article{ReibisVoeller2020,
  author    = {Reibis, Rona K. and V{\"o}ller, Heinz},
  title     = {Non pharmacological secondary prevention and rehabilitation},
  series = {Aktuelle Kardiologie},
  volume    = {9},
  journal   = {Aktuelle Kardiologie},
  number    = {03},
  publisher = {Thieme},
  address   = {Stuttgart},
  issn      = {2193-5203},
  doi       = {10.1055/a-1185-8460},
  pages     = {297 -- 302},
  year      = {2020},
  abstract  = {Die Sekund{\"a}rpr{\"a}vention der koronaren Herzkrankheit umfasst einerseits eine pharmakologische, andererseits eine lebensstilbasierte S{\"a}ule, die idealerweise interagieren und sich potenzieren. Neben der medikament{\"o}sen Blutdruck- und Lipideinstellung auf leitlinienorientierte Zielwerte erm{\"o}glichen moderne Antidiabetika eine Optimierung des glukometabolischen Kontinuums und eine Prognosebesserung. Die Lebensstiloptimierung setzt sich aus koronarprotektiver Ern{\"a}hrung, einer individualisierten Trainingstherapie, einer konsequenten Nikotinkarenz und stressreduzierenden Maßnahmen zusammen. Die kardiologische Rehabilitation (Phase II) schließt sich idealerweise unmittelbar einem station{\"a}ren Aufenthalt wegen eines akuten Koronarereignisses an, kann aber auch im Rahmen einer stabilen Koronarsituation im Rahmen eines allgemeinen Antragsverfahrens durchgef{\"u}hrt werden. Randomisierte und prospektiv angelegte Interventionsstudien belegen die prognostische Wertigkeit der kardiologischen Rehabilitation auch im Zeitalter akuter Revaskularisationstherapie mit 24-h-PCI und moderner Pharmakotherapie.},
  language  = {de}
}
@article{BrandTimmeNosrat2020,
  author    = {Brand, Ralf and Timme, Sinika and Nosrat, Sanaz},
  title     = {When pandemic hits},
  series = {Frontiers in psychology},
  volume    = {11},
  journal   = {Frontiers in psychology},
  publisher = {Frontiers Media},
  address   = {Lausanne},
  issn      = {1664-1078},
  doi       = {10.3389/fpsyg.2020.570567},
  pages     = {10},
  year      = {2020},
  abstract  = {The governmental lockdowns related to the COVID-19 pandemic have forced people to change their behavior in many ways including changes in exercise. We used the brief window of global lockdown in the months of March/April/May 2020 as an opportunity to investigate the effects of externally imposed restrictions on exercise-related routines and related changes in subjective well-being. Statistical analyses are based on data from 13,696 respondents in 18 countries using a cross-sectional online survey. A mixed effects modeling approach was used to analyze data. We tested whether exercise frequency before and during the pandemic would influence mood during the pandemic. Additionally, we used the COVID-19 pandemic data to build a prediction model, while controlling for national differences, to estimate changes in exercise frequency during similar future lockdown conditions depending on prelockdown exercise frequency. According to the prediction model, those who rarely exercise before a lockdown tend to increase their exercise frequency during it, and those who are frequent exercisers before a lockdown tend to maintain it. With regards to subjective well-being, the data show that those who exercised almost every day during this pandemic had the best mood, regardless of whether or not they exercised prepandemic. Those who were inactive prepandemic and slightly increased their exercise frequency during the pandemic, reported no change in mood compared to those who remained inactive during the pandemic. Those who reduced their exercise frequency during the pandemic reported worse mood compared to those who maintained or increased their prepandemic exercise frequency. This study suggests that under similar lockdown conditions, about two thirds of those who never or rarely exercise before a lockdown might adopt an exercise behavior or increase their exercise frequency. However, such changes do not always immediately result in improvement in subjective well-being. These results may inform national policies, as well as health behavior and exercise psychology research on the importance of exercise promotion, and prediction of changes in exercise behavior during future pandemics.},
  language  = {en}
}
@techreport{MarcusSiedlerZiebarth2021,
  type      = {Working Paper},
  author    = {Marcus, Jan and Siedler, Thomas and Ziebarth, Nicolas R.},
  title     = {The Long-Run Effects of Sports Club Vouchers for Primary School Children},
  series = {CEPA Discussion Papers},
  journal   = {CEPA Discussion Papers},
  number    = {34},
  issn      = {2628-653X},
  doi       = {10.25932/publishup-50897},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-508978},
  pages     = {72},
  year      = {2021},
  abstract  = {Starting in 2009, the German state of Saxony distributed sports club membership vouchers among all 33,000 third graders in the state. The policy's objective was to encourage them to develop a long-term habit of exercising. In 2018, we carried out a large register-based survey among several cohorts in Saxony and two neighboring states. Our difference-in-differences estimations show that, even after a decade, awareness of the voucher program was significantly higher in the treatment group. We also find that youth received and redeemed the vouchers. However, we do not find significant short- or long-term effects on sports club membership, physical activity, overweightness, or motor skills.},
  language  = {en}
}