hip flexor stretch

Illustration: David Wyffels

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Stretch #4: Thomas Stretch

Do it if: You spend most of the day sitting, which shortens your hip flexors and leads to tightness. And treadmill-class fans should take note too, as tight hip flexors can lead to improper running form and cause potential injury.

1. Sit on the edge of a bed or countertop and lie back as you bring one knee to the chest.
2. Let your other leg dangle over the edge, but don't let your lower leg touch the ground. If it does, you need a higher surface to lie on. You should feel it in the hip of the lower leg and a little bit in the glute of the leg you've brought to your chest. Return to start, switch legs and repeat the stretch.