Lie on your side with the leg you would like to exercise on top.
Prop yourself up on your forearm and place the knee and thigh of your upper leg on a sturdy platform, such as a chair.
Ensure both legs are straight with your body.
Lift your hips up so that you have a straight line from your body through to your elevated leg.
Keeping this alignment with your body and upper leg, lift your lower leg straight up to join your elevated leg.
Hold this position.
Control the movement as you lower this leg back down to gently rest on the ground, then lower your hips to gently touch the ground.