This exercise is deceptively simple. It is called the one legged squat and the key of the exercise is, you want to keep the knee in alignment, don’t let it wobble back and forth. And as you keep the knee in alignment, you also want to make sure you engage the core as you squat down you want to bring the buttocks backwards so the centre of gravity is back, and as you squat down, you want to keep the knee over ankle - not over your toes. And you’re going to repeat three sets of ten. As you master that then you’re going to add a more difficult component - the hop. Now all this as you can see is using a red resistance band and as you do the hop you want to make sure you keep the alignment the same as you were doing before with just the squat. You’re also going to do three sets of ten.