Performing the Prevent injury: Step heel squats will strengthen your thigh muscles without putting too much strain on your knees.
Using a low step or the bottom stair of the staircase, stand with your left foot on the step.
Let your right foot hang next to the step and pull your toes up.
Bend your left knee until your right heel touches the floor, but don’t rest on the floor.
Push back up to the standing position.
Complete one set on the left before changing over to the right.
Hold on to the rail or wall if you struggle to balance on one leg.