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Osteoporosis
Pro baseball players keep some bone strength for life, study says
Pro baseball players keep some bone strength for life, study says

Young men who exercise keep some of the benefits to their bones into old age, even if they don’t keep at it, according to researchers who compared the throwing arms and the nonthrowing arms of professional baseball players over time. Bone mass, size and strength increase with physical activity in youth, but it was unclear whether those benefits carried into later years. The researchers looked at the arms of 103 pro baseball players -- major and minor leagues -- and at the arms of 94 “regular” men; they reported their findings in this week’s Proceedings of the National Academy of Sciences. Half of the bone size and one-third of the bone strength benefits of...

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