Example
An examination of the classic biceps curl exercise will help you understand the role of a neutralizer during exercises. During the curl, the angle between your forearm and upper arm closes causing your biceps to contract to produce the movement. However, the bicep also causes suprination when contracting. This causes the forearms to rotate so that your palms face upward. To prevent or neutralize this motion from happening, the pronator teres, which is located in your forearm, activates to counter and neutralize this function of your biceps.