The Relationship of Swimming Exercise to Bone Mass in Men and Women

Eric S. Orwoll, June Ferar, Shelia K. Oviatt, Michael R. Mcclung, Kathleen Huntington

Research output: Contribution to journalArticle

107 Scopus citations

Abstract

Exercise appears to be capable of exerting a positive effect on bone mass, but how exercise can be used to best advantage in the prevention and therapy of osteopenia is unclear. Weight-bearing activity has been commonly considered to be essential for the beneficial effects of exercise on the skeleton, and, therefore, swimming has been considered valueless in the maintenance of bone mass. To examine this issue we measured radial and vertebral bone mineral density in a group of subjects aged 40 to 85 years who had been swimming regularly for at least 3 years as well as in a similar group of nonexercising control subjects. The swimmers engaged in no other forms of regular exercise, and no subject had other conditions known to affect bone or mineral metabolism. Dietary calcium and protein intakes were similar in the two groups. At both radial (0.84 ± 0.08 vs 0.81 ± 0.09 g/cm2) and vertebral (123 ± 27 vs 108 ± 31 mg/cm3) sites the male swimmers had significantly greater bone mineral density than did the nonexercisers. In women, however, no relationship of swimming to bone mineral density could be identified. These results suggest that swimming exercise may be beneficial in the prevention or therapy of osteopenia and that its usefulness in this regard should be further investigated.

Original languageEnglish (US)
Pages (from-to)2197-2200
Number of pages4
JournalArchives of internal medicine
Volume149
Issue number10
DOIs
StatePublished - Oct 1989

ASJC Scopus subject areas

  • Internal Medicine

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