Physical inactivity is a risk factor for physical activity-related injuries in children
- Frank Bloemers1,
- Dorine Collard2,
- Mai Chin A Paw3,
- Willem Van Mechelen3,
- Jos Twisk4,
- Evert Verhagen3
- 1Department of Traumasurgery, VU University Medical Center, Amsterdam, The Netherlands
- 2Centre of Research on Sports in Society, W.J.H. Mulier Institute, Utrecht, The Netherlands
- 3Department of Public and Occupational Health, EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands
- 4Department of Health Sciences, Section Methodology and Applied Biostatistics, VU University Medical Center, Amsterdam, The Netherlands
- Correspondence to Evert Verhagen, Department of Public and Occupational Health, EMGO Institute for Health and Care Research, VU University Medical Center, Van der Boechorststraat 7, 1081 BT, Amsterdam, The Netherlands;
- Received 1 September 2011
- Accepted 12 November 2011
- Published Online First 14 December 2011
Objectives To describe the risk factors associated with injuries resulting from physical education (PE), leisure time physical activity (leisure time PA) and sports in 9–12-year-old children.
Design Prospective cohort study.
Setting Primary schools.
Participants Nine hundred and ninety-five children aged 9–12 years.
Main outcome measures Injuries occurring during either PE class, leisure time PA or sports, and caused the child to at least stop the current activity were recorded prospectively. Individual weekly exposure was estimated from baseline and follow-up questionnaires. Potential risk factors were gender, age, socioeconomic status, ethnicity, habitual level of PA, body mass index and a motor fitness. A multivariate Cox proportional hazard regression model was developed, accounting for clustering within schools.
Results Gender, age and level of PA were independent significant risk factors for injury. Different modalities of PA had different injury risk factors. Most importantly, the low levels of habitual PA significantly increased injury risk.
Conclusions The children at highest injury risk are the target audience of the contemporary PA promotion efforts. PA promotion should also focus on injury prevention.
Funding The iPlay study is supported by grant 62200033 from The Netherlands Organization for Health Research and Development.
Competing interests None.
Ethics approval Medical Ethics Committee of the VU University Medical Center, Amsterdam, The Netherlands.
Provenance and peer review Not commissioned; externally peer reviewed.