To perform a No Weight Lunge, start with your feet about hip width apart and arms at your sides. Take a long forward step, keeping your weight balanced between both of your feet. Your torso should remain upright and your forward leg should be bent with your thigh parallel to the floor. As you are doing this, bend your trailing leg by bringing the knee down until it almost touches the ground. The heel of your trailing leg should come off the ground. Return to starting position, and then repeat alternating sides.