Gender Differences in Rotation of the Shank During Single-Legged Drop Landing and Its Relation to Rotational Muscle Strength of the Knee-AJSM Jan. '08
This study looked at femoral rotation during a 20cm single leg drop landing. The study showed the female subject's femurs internally rotated faster & further than the male subjects. The authors suggested female athletes strength train the hip external rotators as a method of ACL prevention. I would like your opinion on these questions:
1. What do you think was (or wasn't) going on in the other two planes at the hip?
2. What foot/ankle dysfunctions might exacerbate the effect at the knee joint?
3. Assuming a weak butt is the culprit in the excessive IR, what methods might you use to block that IR in rehab?