Why do my hip flexors hurt terribly when I do high knees exercises during a warm up?
1. Introduction Severe hip flexor pain experienced during high knees exercises is typically the result of an acute muscle strain or underlying tendinopathy in the iliopsoas or rectus femoris muscles. The explosive, high-velocity upward motion of driving the knee toward the chest rapidly stretches and forcefully contracts these tissues. If the musculature is cold, chronically … Read more