Stand on one leg while bringing your other foot behind you to rest on a swiss ball/chair. Lower slightly into a lunge position, keeping you front knee and hips pointing forwards. Maintaining the lunge position, try to push your back foot into the ball/chair for 5 seconds. Aim to keep your front leg and body stable while you kick down with your back foot.
Sets : 5
Reps : 5 sec hold
Improve hip flexor strength in a lengthened position.