menses and injury?

a recent study, conducted by london's portland hospital, suggests that women's risk of injury is closely tied to their fluctuating menstrual/cyclical hormones. A survey of 1,000 osteopaths and 17 women with regular menses yielded the following conclusions.

Both tissues appear to be vulnerable midway through the menstrual cycle, while
the ligaments are at greater risk at the end.

Midway through the cycle, the level of the female sex hormone oestrogen, which gives strength to muscles and ligaments, drops dramatically, resulting in sudden weakness.

At the end of the cycle levels of another hormone, relaxin, rise.

This is to allow the cervix to open so that menstruation can occur, but it also means the ligaments in general are softened. (from BBC.com)

interesting .... ain't it? well, i - being a menstruating female myself -am not really surprised by this. and i wonder ... what woman would be? surely we should tune in to our bodies closely enough to figure this out? or do we really need a bunch of upper class men that wear Harry Rosen suits and drive BMWs and Mercs to tell us about our bodies?