A triceps pushdown machine uses a cable and various attachments to train the triceps through elbow extension. Users stand facing the cable and push the attachment downward until the arms are straight. This exercise effectively targets all three heads of the triceps and is ideal for toning the back of the arms. Different attachments allow pronated, supinated, and neutral grips. It is a joint-friendly movement that can be performed for high repetitions or heavier sets. It is a staple in arm workouts and functional training programs.