The Hurt Hammy
By: Joshua J Stone, MA, ATC, NASM-CPT, CES, PES
With the glute now turned off with altered reciprocal inhibition, a muscle must make up for the loss of function. The muscle that makes up for that function in this case is the hamstring. Now the hamstring is asked to perform its task and perform much of the glutes work. This is called synergistic dominance.
In addition to this muscle imbalance the over active psoas and underactive glute will likely cause an anterior pelvic tilt. Because of the hamstring attachment to the ischial tuberosity on inferior posterior portion of the pelvis an anterior pelvic tilt will cause the hamstring to be on stretch. Now we have a muscle be asked to perform more than one job in a suboptimal position. This leads to hamstring strains.
If you, your client, or your patient suffers from chronic hamstring strains look at the psoas and gluteus maximus. Utilizing CEx protocols apply self-myofascial release and static stretching to inhibit and lengthen the psoas, followed by activation of the gluteus maximus muscle. Complete the activity with an integrated movement exercise such as a ball squat to overhead press. Perform these exercises most days of the week and you will likely see reduction in hamstring strains.