Why is cam impingement more common in males?

FAI: Cam impingement, also known as fai, is seen in both genders. Some types are much more common in young males, but other types can be seen in equal numbers in both sexes. Presumably, active sports participation contributes to the male predominance in some studies. Read===>http://www.Radsource.Us/clinic/1109 for an excellent discussion of the many facets of fai.