Cable standing one arm triceps extension

Stand with your feet shoulder-width apart, facing the cable machine. Hold the cable handle with your right hand, palm facing down, and position your arm so that it is fully extended and parallel to the ground. Keep your elbow stationary and close to your body. Slowly bend your elbow, lowering the cable handle towards the back of your head. Pause for a moment at the bottom of the movement, then extend your arm back to the starting position. Repeat for the desired number of repetitions, then switch sides and perform the exercise with your left arm.