Results Strong evidence was found for an inverse association between MF and total and central adiposity , and CVD and metabolic risk factors .
Strong evidence was also found for a positive association between MF and bone health and self-esteem .
Conclusion The findings of this review highlight the importance of developing MF in youth for a number of health-related benefits
Background Physical fitness during childhood and adolescence has been identified as an important determinant of current and future health status .
While research has traditionally focused on the association between cardio-respiratory fitness and health outcomes , the association between muscular fitness ( MF ) and health status has recently received increased attention .
Objective The aim of this systematic review and meta- analysis was to evaluate the potential physiological and psychological benefits associated with MF among children and adolescents .
Physical inactivity is a risk factor for physical activity-related injuries in children
Objectives To describe the risk factors associated with injuries result ing from physical education ( PE ) , leisure time physical activity ( leisure time PA ) and sports in 9–12-year-old children . Design Prospect i ve 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 prospect ively . Individual weekly exposure was estimated from baseline and follow-up question naires . 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
Results Strong evidence was found for an inverse association between MF and total and central adiposity , and CVD and metabolic risk factors .
Strong evidence was also found for a positive association between MF and bone health and self-esteem .
Conclusion The findings of this review highlight the importance of developing MF in youth for a number of health-related benefits
Background Physical fitness during childhood and adolescence has been identified as an important determinant of current and future health status .
While research has traditionally focused on the association between cardio-respiratory fitness and health outcomes , the association between muscular fitness ( MF ) and health status has recently received increased attention .
Objective The aim of this systematic review and meta- analysis was to evaluate the potential physiological and psychological benefits associated with MF among children and adolescents .