(CNN) — Hamstring tightness is one of the most common complaints I hear from athletes, everyday exercisers and desk workers alike. No matter how much you may try to stretch, the tightness doesn’t go ...

If you’re wondering why your legs feel heavy when running, then you’re in the right place. That “ugh, why do my legs feel like cement blocks” feeling can happen for all kinds of reasons, and sometimes ...

At the front of your hips, the hip flexors connect your thighs to your pelvis. They lift your legs toward your body in a movement called hip flexion. When you spend a lot of time sitting or doing ...