Step 1: Stand balancing on your right leg and hold a dumbbell with your left hand in front of your thigh.Step 2: Sit your hips back as if you were being pulled by a rope attached to your waist., and allow your right knee to bend slightly. Your left leg should be straight (it's OK if there's a slight bend in the knee) and in line with your body throughout the rep.Step 3: Keeping your back flat, continue to bend at the waist until the dumbbell is at about mid-shin height (this ultimately depends on your hamstring flexibility).Step 4: Drive through your heel and push your hips forward to stand up to the starting position.