Saturday, April 22, 2017
Strengthening the Hip External Rotators: The ClamShell with Resistance
As a patient walks or runs or bikes or skis (or any straight line repetitive motion activity), following the heel contact, the knee should internally rotate slightly, and then the strong external rotators begin to correct and pull the knee strait. If the external hip rotators are too weak, this does not happen. As the body moves over the knee as you move forward, the knee is out of normal alignment and pain ensues. Here is another of the common exercises used to strengthen this important muscle.
Here the runner is maintaining good knee position
Here the runner's left knee is too internally rotated