The iliopsoas muscle is a powerful muscle that can cause a deep ache in one side of the groin when injured. It is involved in hip flexion movements (bringing the leg out in front of the body) such as kicking a ball or sprinting. The iliopsoas muscle arises from the low back and attaches to the inside of the thigh. Low back stiffness is common with this injury and Osteopathic treatment to address this is helpful. Treatment aims to settle the condition down by avoiding aggravating activity, stretching the psoas muscle, and strengthening it through its full range of motion. for more information give york rehab clinic a call at 416-350-1940.