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SF Bicycle Transportation Examiner

Brittle bones? Not for Lance

July 6, 11:02 PMSF Bicycle Transportation ExaminerBen Marks
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The other day, someone asked me if I was worried about my bone density since I ride a bike so much. Huh? Turns out that cyclists who compete at the highest levels of the sport are literally riding their asses off—well, their coccyxes perhaps, or maybe it's their hip bones. Anyway, according to a raft of reports, serious cyclists appear to be plagued by low bone density, which makes their bones brittle. The problem seems to be that cycling does not subject a cyclist's bones to enough trauma, which doesn't give the bones an incentive, if you will, to get tough. Sweat also causes cyclists to lose a lot of calcium.

As if to prove the point that cycling causes bones to be brittle, Lance Armstrong broke his collarbone earlier this year, although his performance in the Tour de France (he's climbed into the number-two position overall) indicates that he's recovered rather quickly.

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