Ortega, F. B., Ruiz, J. R., Castillo, M. J. & Sjöström, M. Physical fitness in childhood and adolescence: A powerful marker of health. Int. J. Obes. 32, 1–11 (2008).
Google Scholar
Hurtig-Wennlöf, A., Ruiz, J. R., Harro, M. & Sjöström, M. Cardiorespiratory fitness relates more strongly than physical activity to cardiovascular disease risk factors in healthy children and adolescents: the European Youth Heart Study. Eur. J. Prev. Cardiol. 14, 575–581 (2007).
Google Scholar
García-Hermoso, A., Ramírez-Campillo, R. & Izquierdo, M. Is muscular fitness associated with future health benefits in children and adolescents? A systematic review and meta-analysis of longitudinal studies. Sports Med. 49, 1079–1094 (2019).
Google Scholar
Fühner, T., Kliegl, R., Arntz, F., Kriemler, S. & Granacher, U. An update on secular trends in physical fitness of children and adolescents from 1972 to 2015: A systematic review. Sports Med. 51, 303–320 (2021).
Google Scholar
Lubans, D. et al. Physical activity for cognitive and mental health in youth: A systematic review of mechanisms. Pediatrics 138, 3 (2016).
Google Scholar
Eddolls, W. T. et al. The association between physical activity, fitness and body mass index on mental well-being and quality of life in adolescents. Qual. Life Res. 27, 2313–2320 (2018).
Google Scholar
Wouters, M., Evenhuis, H. M. & Hilgenkamp, T. I. Physical activity levels of children and adolescents with moderate-to-severe intellectual disability. J. Appl. Res. Intellect. Disabil. 32, 131–142 (2019).
Google Scholar
Yang, W., Liang, X. & Sit, C.H.-P. Physical activity and mental health in children and adolescents with intellectual disabilities: A meta-analysis using the RE-AIM framework. Int. J. Behav. Nutr. Phys. Act. 19, 1–15 (2022).
Google Scholar
Hinckson, E. A., Dickinson, A., Water, T., Sands, M. & Penman, L. Physical activity, dietary habits and overall health in overweight and obese children and youth with intellectual disability or autism. Res. Dev. Disabil. 34, 1170–1178 (2013).
Google Scholar
Hartman, E., Smith, J., Westendorp, M. & Visscher, C. Development of physical fitness in children with intellectual disabilities. J. Intellect. Disabil. Res. 59, 439–449 (2015).
Google Scholar
Salaun, L. & Berthouze-Aranda, S. E. Physical fitness and fatness in adolescents with intellectual disabilities. J. Appl. Res. Intellect. Disabil. 25, 231–239 (2012).
Google Scholar
Wouters, M., Evenhuis, H. M. & Hilgenkamp, T. I. M. Physical fitness of children and adolescents with moderate to severe intellectual disabilities. Disabil. Rehabil. https://doi.org/10.1080/09638288.2019.1573932 (2020).
Google Scholar
Zhu, Z., Yang, Y., Kong, Z., Zhang, Y. & Zhuang, J. Prevalence of physical fitness in Chinese school-aged children: findings from the 2016 physical activity and fitness in China—The Youth Study. J. Sport Health Sci. 6, 395–403 (2017).
Google Scholar
Sit, C.H.-P. et al. Results from Hong Kong’s 2019 report card on physical activity for children and youth with special educational needs. J. Exerc. Sci. Fit. 18, 177–182 (2020).
Google Scholar
Wang, J. et al. Children with intellectual disability are vulnerable to overweight and obesity: A cross-sectional study among Chinese children. Child. Obes. 14, 316–326 (2018).
Google Scholar
Kriemler, S. et al. Effect of school-based interventions on physical activity and fitness in children and adolescents: A review of reviews and systematic update. Br. J. Sports Med. 45, 923–930 (2011).
Google Scholar
Dobbins, M., Husson, H., DeCorby, K. & LaRocca, R. L. School‐based physical activity programs for promoting physical activity and fitness in children and adolescents aged 6 to 18. Cochrane Database System. Rev. https://doi.org/10.1002/14651858.CD007651.pub2 (2013).
Google Scholar
Wang, A. Interventions for health-related physical fitness and overweight and obesity in children with intellectual disability: Systematic review and meta-analysis. J. Appl. Res. Intell. Disabil. https://doi.org/10.1111/jar.12999 (2022).
Google Scholar
Yu, S. et al. Effectiveness of an adapted physical activity intervention for weight management in adolescents with intellectual disability: A randomized controlled trial. Pediatric Obes. 17, e12882 (2022).
Google Scholar
Cole, T. J., Bellizzi, M. C., Flegal, K. M. & Dietz, W. H. Establishing a standard definition for child overweight and obesity worldwide: International survey. BMJ https://doi.org/10.1136/bmj.320.7244.1240 (2000).
Google Scholar
Salaun, L., Reynes, E. & Berthouze-Aranda, S. E. Adapted physical activity programme and self-perception in obese adolescents with intellectual disability: Between morphological awareness and positive illusory bias. J. Appl. Res. Intellect. Disabil. 27, 112–124 (2014).
Google Scholar
Fernhall, B. O. et al. Prediction of maximal heart rate in individuals with mental retardation. Med. Sci. Sports Exerc. 33, 1655–1660 (2001).
Google Scholar
Rikli, R. E. & Jones, C. J. Senior Fitness Test Manual (Human Kinetics, 2013).
Frey, G. C. & Chow, B. Relationship between BMI, physical fitness, and motor skills in youth with mild intellectual disabilities. Int. J. Obes. 30, 861–867 (2006).
Google Scholar
Lee, S. Y. Handgrip strength: An irreplaceable indicator of muscle function. Ann. Rehabil. Med. 45, 167 (2021).
Google Scholar
Vaidya, S. & Nariya, D. M. Handgrip strength as a predictor of muscular strength and endurance: A cross-sectional study. J. Clin. Diagn. Res. 15, 1 (2021).
Blomqvist, S., Olsson, J., Wallin, L., Wester, A. & Rehn, B. Adolescents with intellectual disability have reduced postural balance and muscle performance in trunk and lower limbs compared to peers without intellectual disability. Res. Dev. Disabil. https://doi.org/10.1016/j.ridd.2012.07.008 (2013).
Google Scholar
Organization, W. H. & Others. Global Physical Activity Questionnaire (GPAQ) Analysis Guide. (Geneva, 2012).
Raghuveer, G. et al. Cardiorespiratory fitness in youth: An important marker of health: A scientific statement from the American heart association. Circulation 142, e101–e118 (2020).
Google Scholar
Mintjens, S. et al. Cardiorespiratory fitness in childhood and adolescence affects future cardiovascular risk factors: A systematic review of longitudinal studies. Sports Med. 48, 2577–2605 (2018).
Google Scholar
Pinckard, K., Baskin, K. K. & Stanford, K. I. Effects of exercise to improve cardiovascular health. Front. Cardiovasc. Med. 6, 69 (2019).
Google Scholar
Lavie, C. J. et al. Exercise and the cardiovascular system: Clinical science and cardiovascular outcomes. Circ. Res. 117, 207–219 (2015).
Google Scholar
Pozuelo-Carrascosa, D. P., García-Hermoso, A., Álvarez-Bueno, C., Sánchez-López, M. & Martinez-Vizcaino, V. Effectiveness of school-based physical activity programmes on cardiorespiratory fitness in children: A meta-analysis of randomised controlled trials. Br. J. Sports Med. 52, 1234–1240 (2018).
Google Scholar
Sun, C. et al. Effects of school-based interventions for direct delivery of physical activity on fitness and cardiometabolic markers in children and adolescents: A systematic review of randomized controlled trials. Obes. Rev. 14, 818–838 (2013).
Google Scholar
Kong, Z. et al. Tai chi as an alternative exercise to improve physical fitness for children and adolescents with intellectual disability. Int. J. Environ. Res. Public Health https://doi.org/10.3390/ijerph16071152 (2019).
Google Scholar
Elmahgoub, S. S. et al. The effect of combined exercise training in adolescents who are overweight or obese with intellectual disability: The role of training frequency. J. Strength Cond. Res. https://doi.org/10.1519/JSC.0b013e3181f11c41 (2011).
Google Scholar
Boer, P. H. et al. The influence of sprint interval training on body composition, physical and metabolic fitness in adolescents and young adults with intellectual disability: A randomized controlled trial. Clin. Rehabil. https://doi.org/10.1177/0269215513498609 (2014).
Google Scholar
He, Q. et al. Physical activity, cardiorespiratory fitness, and obesity among Chinese children. Prev. Med. 52, 109–113 (2011).
Google Scholar
Wu, W. L. et al. Effectiveness of a cross-circuit exercise training program in improving the fitness of overweight or obese adolescents with intellectual disability enrolled in special education schools. Res. Dev. Disabil. https://doi.org/10.1016/j.ridd.2016.11.005 (2017).
Google Scholar
Xu, C., Yao, M., Kang, M. & Duan, G. Improving physical fitness of children with intellectual and developmental disabilities through an adapted rhythmic gymnastics program in China. Biomed. Res. Int. 2020, 1–10 (2020).
Elmahgoub, S. M. et al. The influence of combined exercise training on indices of obesity, physical fitness and lipid profile in overweight and obese adolescents with mental retardation. Eur. J. Pediatr. https://doi.org/10.1007/s00431-009-0930-3 (2009).
Google Scholar
Messiah, S. E. et al. Changes in cardiovascular health and physical fitness in ethnic youth with intellectual disabilities participating in a park-based afterschool programme for two years. J. Appl. Res. Intellect. Disabil. 32, 1478–1489 (2019).
Google Scholar
Wind, A. E., Takken, T., Helders, P. J. & Engelbert, R. H. Is grip strength a predictor for total muscle strength in healthy children, adolescents, and young adults?. Eur. J. Pediatr. 169, 281–287 (2010).
Google Scholar
Corbin, C. B. & Noble, L. Flexibility: A major component of physical fitness. J. Phys. Educ. Recreat. 51, 23–60 (1980).
Google Scholar
Stanish, H. I. & Temple, V. A. Efficacy of a peer-guided exercise programme for adolescents with intellectual disability. J. Appl. Res. Intellect. Disabil. 25, 319–328 (2012).
Google Scholar
Haney, K. et al. Park-based afterschool program to improve cardiovascular health and physical fitness in children with disabilities. Disabil. Health J. https://doi.org/10.1016/j.dhjo.2014.02.006 (2014).
Google Scholar
Fragala-Pinkham, M. A., Haley, S. M. & Goodgold, S. Evaluation of a community-based group fitness program for children with disabilities. Pediatr. Phys. Ther. 18, 159–167 (2006).
Google Scholar
Improving Physical Fitness of Children with Intellectual and Developmental Disabilities through an Adapted Rhythmic Gymnastics Program in China. https://www.hindawi.com/journals/bmri/2020/2345607/
Mayorga-Vega, D., Merino-Marban, R., Garrido, F. J. & Viciana, J. Comparison between warm-up and cool-down stretching programs on hamstring extensibility gains in primary schoolchildren. Phys. Act. Rev. 2, 16–24 (2014).
Collins, K. & Staples, K. The role of physical activity in improving physical fitness in children with intellectual and developmental disabilities. Res. Dev. Disabil. 69, 49–60 (2017).
Google Scholar
Neu, C. M., Rauch, F., Rittweger, J., Manz, F. & Schoenau, E. Influence of puberty on muscle development at the forearm. Am. J. Physiol. Endocrinol. Metabol. 283, E103–E107 (2002).
Google Scholar
Goswami, B., Roy, A. S., Dalui, R. & Bandyopadhyay, A. Impact of pubertal growth on physical fitness. Am. J. Sports Sci. Med. 2, 34–39 (2014).
Google Scholar