Increase in femoral bone density in young women following high-impact exercise

Osteoporos Int. 1994 Mar;4(2):72-5. doi: 10.1007/BF01623226.


Healthy premenopausal women were randomized into control and test groups; both exercised weekly in class and daily at home for a year. The test class did intermittent high-impact exercise; the control class did low-impact exercise. Bone density was assessed blind using dual energy X-ray absorptiometry at the femur (neck, Ward's triangle and trochanter) and at the lumbar spine (antero-posterior L1-4) on entry into the study, and again after 6 months (n = 27) and 12 months (n = 19). At 6 months the test group (n = 14) showed a significant increase of 3.4% in trochanteric bone density (p = 0.01) and this was significantly different from control (p = 0.05). In the second 6 months the control group was crossed over to high-impact exercise and showed a significant increase of 4.1% in trochanteric density (n = 7) while the original group maintained their improvement relative to baseline.

Publication types

  • Clinical Trial
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Bone Density / physiology*
  • Exercise / physiology*
  • Female
  • Femur / physiology*
  • Humans
  • Lumbar Vertebrae / physiology
  • Radius / physiology
  • Single-Blind Method