Stand with your left leg in front of your right, feet hip-width apart. Shift most of your weight on to the front leg without pushing weight into your knee. Bend the right knee while tilting your pelvis forward. You should feel a stretch in the front of the right hip. Hold for 20 seconds. Do three repetitions, then repeat on the other side. Stand with a good posture on your left leg, your right knee bent and supported on a chair. Tighten your buttock muscle while straightening your hips and holding them gently in place, for 20 seconds. Release, then tighten your stomach muscles while straightening your hips; hold for 20 seconds. Do three repetitions of both exercises, taking care not to let your back arch. Repeat on the other side.