Which of the following muscles is antagonistic to the muscles that supinate the forearm?

Superficial to the brachialis is the long biceps brachii muscle that runs anterior to the humerus from the scapula to the radius. the biceps mostly functions as a flexor at the elbow, but it is also able to supinate the forearm and turn the palm of the hand anteriorly

if you are asking how much they can go over the 1500 limit it would be safetly within the 2310 and 2600.mg