Purpose: Evaluate the ability of the upper posterior chain muscle groups to sustain repeated contractions against body weight resistance for an extended period of time or until failure.
Equipment: Horizontal bar (stationary)
Procedure: A horizontal bar should be mounted out of the participants reach if their upper arms extended over head. They begin by hanging from a bar with arms fully extended and hands positioned slightly wider than shoulders and pronated.
Instruct the participant to vertically pull their body straight upward until their chin is above the bar. To return to down position, the participant should lower their body down until arms are fully extended. The test is stopped if he or she can not get their chin above the bar. The score is calculated as the number of repetitions completed.