Complex sentence: A combination of certain factors may lead to some form of FAI, predominantly, a marginal developmental hip abnormality together with environmental factors such as activities involving recurrent motion of the legs within a supraphysiologic range.
Split into simpler sentences: A combination of certain factors may lead to some form of FAI. Predominantly, a marginal developmental hip abnormality together with environmental factors such as activities involving recurrent motion of the legs within a supraphysiologic range.