Lift right leg straight back and up, keeping right foot firmly flexed. Bring right leg back down to mat, then repeat the move on left leg. Continue alternating legs for 30 seconds.

Lift right leg straight back and up, keeping right foot firmly flexed. Bring right leg back down to mat, then repeat the move on left leg. Continue alternating legs for 30 seconds.

Find out what you need to know about thigh muscles, and discover their anatomy and common injuries ... They allow you to extend your knees and flex your hips and are usually the primary focus of ...

Find a hip-height box or chair. Facing the box, lift your right leg and open it to the side as you lay it on top of the box. Adjust your shin so your knee is bent 90 degrees, foot flexed.

Place the inside of the thigh of the top leg on the box with the knee flexed 90 degrees. "There should be no flexion of the top hip," Pelizzaro says.