Hip Labral Tear

The curve will reach a peak before the point where the labrum inhibits the muscles. The inhibition is due to the pain but once beyond the range where the affected part of the labrum is stressed the torque will return giving a second peak. This M shaped curve can be biased towards the beginning or end of the curve dependent on where the damage is.

Please note absence of a curve does not necessarily indicate a normal labrum.

Concentric hip flexion shown.