Sex and carpal tunnel syndrome.

A new paper in Medical Hypotheses journal posits that carpal tunnel
syndrome can be caused by sexual intercourse. From the abstract:

It is proposed that carpal tunnel syndrome can develop
during sexual intercourse when the hands become repeatedly extended
while under pressure from the weight of the upper body. Of the eight
risk factors associated with non-occupational carpal tunnel syndrome,
age, marital status, pregnancy and use of hormonal agents can be
explained by changes in the frequency of sexual intercourse. On the
other hand, obesity, macromastia and large chest circumference can be
explained by the increased pressure imposed on the wrists by the
heavier upper body associated with such conditions. The bilaterality of
carpal tunnel syndrome can be explained by the fact that both hands are
needed to support the upper body during sexual intercourse. A parallel
decrease in the frequency of sexual intercourse and the incidence of
carpal tunnel syndrome between the sixth and the seventh decades of
life suggests a possible cause and effect relationship between sexual
intercourse and carpal tunnel syndrome.

The role of sexual intercourse in the etiology of ... [Med Hypotheses. 2010] - PubMed result