Adjust the sled machine to a 45-degree angle. Sit on the sled machine with your back against the pad and your feet on the foot platform. Position your feet wider than shoulder-width apart. Push against the foot platform to extend your legs and straighten your knees. Pause for a moment at the end of the movement, then slowly bend your knees to return to the starting position. Repeat for the desired number of repetitions.
GIF
