Background Previous research has shown that muscle imbalances may be an important risk factor for lower limb injuries in runners. No studies have evaluated hip musculature imbalance in sprinters.

Staying flexible doesn’t have to be complicated. Try these from the comfort of your chair—no mat required.

The best runners look like they’re gliding with every stride, an effortless motion. But really, every smooth step involves a team of coordinated muscles working behind the scenes. Your arms, core, ...