That’s because hip flexors—the muscles that allow flexion at the hip joint—play a huge role in fluid running, and a set of tight ones can really mess with your mechanics. That’s where incorporating ...

Sit upright with knees bent, hands resting behind you. Cross left ankle over right knee. Let right knee travel out to the ...

When we sit, the hips and knees are flexed at a 90-degree angle. The hip flexors — the muscles that run along the front of the hip — become compressed and shortened. Over time, like a rubber band left ...