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 .
The Significance of High Lumbar Mobility and Low Lumbar Strength for Current and Future Low Back Pain In Adolescents
Study Design . This study comprised a cross-sectional part and a prospect i ve part . Objective . To study whether low lumbar extension strength , high lumbar mobility , and high mobility – extension strength ratios are related to current and future low back pain in adolescents . Summary of Background Data . Knowledge is sparse about the significance of lumbar mobility and strength for low back pain in adolescents . Methods . The study population included all the adolescents in the eighth and ninth grade s of a rural municipality ( n = 44 ) and in an urban area ( n = 61 ) during the 1996–1997 school year . At baseline , 88 adolescents ( mean age , 14.7 years ) participated in the study , giving a response rate of 84 % .  Low back pain was assessed by question naire as pain or discomfort in the low back during the preceding year . Sagittal lumbar mobility  was tested by Schober ’s modified technique , and lumbar strength as  static endurance extension strength  . The follow-up part was conducted 3 years later , which included 98 % of the adolescents . Results . By bivariate and multivariate analyses in the cross-sectional part of the study , low back pain was found to be highly associated with low lumbar extension strength ( P = 0.004–0.02 ) , and high lumbar mobility – extension strength ratios ( P = 0.005–0.04 ) . Baseline low lumbar extension strength and high lumbar sagittal mobility – extension strength ratios ( P = 0.03 and P = 0.02 , respectively ) predicted low back pain at follow-up assessment in multivariate analyses when control was used for gender , previous low back pain , physical activity , and well-being . No associations were found between plain sagittal mobility and low back pain . Conclusion . The study findings support theories suggesting insufficient strength and stability in the low back as important factors for both concurrent and future low back pain in adolescents
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 .