Bone loading during young adulthood predicts bone mineral density in physically active, middle-aged men

The Physician and Sportsmedicine
Robert S Rogers, Pamela S Hinton

Abstract

Physical activity during growth induces skeletal adaptations that increase bone strength; however, it remains unclear whether these benefits persist into middle age. We sought to determine if bone loading during adolescence (ages 13-18 years) or young adulthood (ages 19-29 years) in men is associated with greater bone mineral density (BMD) and reduced risk of low bone density in adulthood. We also sought to determine if participation in high-impact activities (ie, those that produce a ground reaction force [GRF] > 4 times the individual's body weight] during adolescence and/or young adulthood has a lasting positive effect on adult BMD. Eighty-six, apparently healthy, physically active men (aged 30-60 years) participated in this cross-sectional study. Bone loading during adolescence, young adulthood, and adulthood were calculated based on GRFs of the reported physical activities. Whole body, lumbar spine, total hip, and femoral neck BMD were assessed using dual-energy x-ray absorptiometry (DXA). Multiple linear regression was used to examine relationships between BMD and bone loading, including body weight and/or age as covariates; logistic regression was used to predict low bone density for age. Participants were grouped based ...Continue Reading

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Citations

Apr 7, 2012·The Orthopedic Clinics of North America·Harpal K Gahunia, Kenneth P H Pritzker
Oct 31, 2013·Journal of the American Association of Nurse Practitioners·Lori J Mennen-WinchellSerena Tonstad
Jan 15, 2019·The Physician and Sportsmedicine·William R TebarDiego G D Christofaro

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