Conclusion A prospect i ve negative association was observed between muscular fitness in childhood/adolescence and adiposity and cardiometabolic parameters in later life , together with a positive association for bone health .
There is inconclusive evidence for low back pain benefits
Background No previous systematic review has quantitatively examined the association between muscular fitness during childhood and adolescence and health parameters later in life .
Objective The aim was to systematic ally review and meta-analyze the current evidence for a prospect i ve association between muscular fitness in childhood and adolescence and future health status .
Bone mass and lifetime physical activity in Flemish males: a 27-year follow-up study.
PURPOSE The present population study is conducted to examine the extent to which lifetime physical activity and lifestyle parameters contribute to  bone mass . METHODS The design of the project is a 27-yr prospect i ve follow-up study . Subjects are 126 males gathered from the Leuven Longitudinal Study on Lifestyle , Physical Fitness and Health , and aged 13 yr at the onset of the study and 40 at the end of the follow-up .  Physical activity and lifestyle parameters are obtained with question naires . Bone mass is measured by means of dual-energy x-ray absorptiometry ( DXA ) . RESULTS Results from correlation and regression analyses show that the body mass index ( BMI ) is the most important parameter in relation to cortical and trabecular bone mass at every examination period . Longitudinally , static arm strength , running speed , and upper muscular endurance contribute significantly to the prediction of adult bone mass . The parameter " change in motor fitness " between 18 and 13 yr old was used to control for hereditary influences . The score for static arm strength and trunk muscle strength demonstrates a significant correlation with adult total bone mineral content ( BMC ) and lumbar bone mineral density ( BMD ) , respectively . At the age of 40 , the Baecke sports index is almost equally important as BMI in explaining the variance in BMD , and static arm strength is the most important parameter ( after BMI ) for BMC . CONCLUSION Lifetime physical activity , physical fitness , and BMI all contribute to adult bone mass . The clinical relevance of these findings is emphasized by the fact that the observed patterns of physical activity and motor fitness pertain to customary lifestyle and are thus feasible targets
Conclusion A prospect i ve negative association was observed between muscular fitness in childhood/adolescence and adiposity and cardiometabolic parameters in later life , together with a positive association for bone health .
There is inconclusive evidence for low back pain benefits
Background No previous systematic review has quantitatively examined the association between muscular fitness during childhood and adolescence and health parameters later in life .
Objective The aim was to systematic ally review and meta-analyze the current evidence for a prospect i ve association between muscular fitness in childhood and adolescence and future health status .