hi
i agree with physiobob
there is a need to consider the biomechanical inter-relationships in such cases.
that is application of movement impairment approach of shirley shehrman.her theory of relative flexibility -should be kept in mind while evaluating movement alterations
the relative flexibility is simply stated as "the body segments follows the path of least resistance
so reduced flexibility/mobility of one segment is compensated by excessive flexibility/mobility in another segment