Sorry for the confusion. I will list the steps of the exercise along with the targeted muscle groups, and the plane of motion. Again this is only an example to promote thoughts on how to train taking into consideration of AF and FA activity. This particular exercise would be one of several in a progression to help an athlete imporve AF control on the left while improving recruitment and strength of right FA control.Supine Hooklying Left Glute Max with Right Glute Med
1. Inhale through the nose, and then while exhaling tilt pelvis off of floor. (hamstrings posteriorly rotate pelvis, sagittal plane)
2. While maintaing pelvic tilt with the left leg, Shift the right knee ahead of the left knee.( right glutes with left adductors, this is AF adduction/internal rotation, and trunk abduction, Frontal plane activity).
3. While maintaing this tilted and shifted position, take right foot off of the block and turn ankle/lower leg out = right FA internal rotation (targets glute med, Transverse plane movement)
4. Hold this position as you breath in through the nose and out through the mouth 4-5 times.
There are two main goals. Stabilize the pelvis= AF control. And improve rotational strength.
The athlete pictured is a DIV 1 volleyball player who's asymmetry put her at risk when landing from jumping movement. She had to work to correct her inability to maintain or stabilize the pelvis equally on both sides. As a science we are discovering that most of us have more exagerated asymmetries than initally thought. My area of interest is to promote concepts and understanding amongst Skiing athletes about how to minimize these influences. In fact in many sports traditional athletic stregthening programs, that are in some ways still rooted in bodybuilding concepts, exagerate and promote asymmetry and lead to a less functional athlete.
So the exercise listed above is only an example. I just hoped it would inform those here who teach and coach, that there are new concepts out there and great resources. For example, these concpets could potentially help a racer who is struggling with a weak turn to one side.
Hoped that helped.