“This exercise focuses primarily on building the vastus medialis oblique (VMO), an inside quad muscle just above the knee, to improve knee stability,” says PT James Stark (pictured). While the depth of the exercise is completely individual, everyone should prioritise control to maximise quad recruitment.
• Start upright, standing on a box (or solid surface) on one leg.
• Place the other leg off the side of the box, with your foot running along the edge.