Sauper T, Lanthaler M, Biebl M, Weiss H, Nehoda H. Impaired anal sphincter function in professional cyclists. Wien Klin Wochenschr. 2007;119(5-6):170-3.
Professional cycling: Voluntary defecation control is for pussies.
Many undertaking can have unwanted occupational hazards attached. I think this one could end up having aficionados considering changing activities though! LOL!
Dave Briggs :~)
From the Abstract:
RESULTS: Sphincter resting pressures (89 +/- 27 mmHg vs CG: 69 +/- 16 mmHg), squeeze pressures (137 +/- 36 mmHg vs CG: 96 +/- 19 mmHg) and sphincter volumes (resting vector volume: 513 +/- 277 cc vs CG 273 +/- 170 cc, squeeze vector volume: 1389 +/- 867 cc vs CG: 490 +/- 219 cc) were significantly higher in the professional mountain bikers.
Um, why are higher spincter pressures considered bad? I would think that they make leakage etc. less likely.
It’s right there in the abstract:
Muscle hypertrophy as a consequence [of high sphincter pressure] may lead to defecation disorders.
Chips the porcelain too.
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