Lie on your back with a resistance band looped around the foot on the leg to be exercised.
The other end of the band should be secured to a solid object above your head.
Your head should be closest to the attachment, with your feet furthest away.
Ensure there is tension in the band.
Keeping your toes and knee pointing directly upwards, control the movement as you allow your hip and knee to bend, moving your knee towards your chest.
Press against the resistance of the band as you straighten your leg back down to the starting position.
Repeat, ensuring your leg moves in a direct up and down plane and your knee and foot do not rotate in or out.
