Usenet 2009-06-26 06:00:55
Swimming increases bone strength: Study
Thursday, July 31, 2003
Washington – Results of a new study prove swimming to be
an excellent way of improving bone strength. This is the
first study to report the relative effects of weight-
bearing and non-weight-bearing exercises on bone
Previous studies have shown physical activity with
weight-bearing to improve bone density. Swimming, being a
non-weight-bearing exercise, was believed not to have
equivalent beneficial effect on bone density.
However, findings of a study on rats by a team from
Taiwan led by T. H. Huang from the National Taiwan
University, Taiwan suggest that water sports could
enhance the mechanical properties of bone under specific
conditions, and direct comparison of its effects with
those of weight-bearing exercise would be useful.
Their findings appear in the July 2003 edition of the
Journal of Applied Physiology.
This experiment investigated the effects of exercise with
or without weight bearing on the mineral and mechanical
properties of growing bone. Only the running rats
exhibited a higher site-specific bone density compared
with the swimming and control groups. However, both
running and swimming resulted in increased long bone
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