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Related Experiment Videos

Is bone mineral density advantage maintained long-term in previous weight lifters?

M K Karlsson1, O Johnell, K J Obrant

  • 1Department of Orthopedics, Malmö University Hospital, Sweden.

Calcified Tissue International
|November 1, 1995
PubMed
Summary

Former weightlifters aged 50-64 showed higher bone mineral density (BMD). However, this bone health benefit disappeared after age 65, indicating exercise

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Area of Science:

  • Exercise physiology
  • Gerontology
  • Bone health research

Background:

  • Intense, long-term physical exercise may influence lifelong bone mineral density (BMD).
  • Understanding the long-term effects of athletic training on bone health in aging populations is crucial.

Purpose of the Study:

  • To investigate if early, sustained, and intense physical exercise confers lifelong benefits to bone mineral density (BMD).

Main Methods:

  • Cross-sectional study comparing 48 male ex-weight lifters (mean age 64) with 66 age-matched controls.
  • Bone mineral density (BMD) at total body, spine, and hips measured using LUNAR DPX bone mass scanner.
  • Body composition (fat and lean mass) also assessed.

Main Results:

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  • Ex-weight lifters aged 50-64 exhibited significantly higher BMD compared to controls.
  • No significant difference in BMD was observed between ex-weight lifters and controls after the age of 65.
  • Training details: average 10 hours/week for 13 years; retired from sport average 30 years prior.

    • Conclusions:

    • Early, long-lasting, intense physical exercise may enhance bone mineral density (BMD) in middle-aged individuals.
    • The positive effect of such exercise on BMD appears to diminish with advanced age (beyond 65).
    • Further research is needed to understand the mechanisms behind BMD changes in aging former athletes.