- Stand with your feet slightly wider than your shoulders, feet parallel or toes slightly turned out.
- Bend your knees, lowering your hips deeply. Bring your thighs parallel to the floor and bend the elbows, keeping weight back in your heels.
- Rise back up, straightening the legs completely, squeezing the glutes at the top of the movement to get the most out of the exercise.
- This counts as one rep.
- Do as many reps as you can in 40 seconds. Then take a 20-second rest.