Exam

Body Composition Changes with Aging

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Body Composition Changes with Aging

  • Physiology
  1. Lean Body Mass
    1. Lean mass decreases by as much as 0.7 lb or 0.3 kg per year, starting after age 20-30 years
  2. Fat mass
    1. Fat mass increases until age 65 to 70 years that offsets losses in Lean Body Mass
  3. Total body weight
    1. Weight increases until it peaks at age 60 years old
    2. Weight decreases 0.2 to 0.4 lb (0.1 to 0.2 kg) per year after age 70 years old
  • References
  1. Wallace (2002) Int J Cardiol 85(1): 15-21 [PubMed]