What is the antagonist muscle when performing Triceps pressdowns?

The antagonist muscle during triceps pressdowns is the biceps brachii. When you perform this exercise, the triceps brachii act as the prime mover, contracting to extend the elbow and push down the weight. In contrast, the biceps brachii plays the role of the antagonist because it functions to flex the elbow. As the triceps contract and the elbow extends, the biceps must relax to allow this movement to occur smoothly. This reciprocal action between the agonist (triceps) and the antagonist (biceps) is critical for coordinated movement and maintaining joint stability throughout the exercise. Thus, identifying the biceps brachii as the antagonist in this context highlights the importance of muscular balance in movement mechanics.