Hold dumbbell in each hand with back foot on bench
Squat down by sitting back; maintain tight core and keep shoulders up
Drive up when thigh is parallel to ground; keep knee behind toes
JOE’S LOWDOWN: “You get all the benefits of a regular squatlike working the glutes, hamstrings and quadsbut you also work balance, stability and flexibility in the leg you’re using. You also work your core by forcing it to balance your body on one leg.”