The purpose of this study was to determine the accuracy of using relative muscular endurance performance to estimate 1-RM bench press and squat strength in college football players. NCAA Div. II players (N = 45) were tested after 12 weeks of resistance training in a winter conditioning program. Each subject selected a weight he anticipated to be 70% of l-RM for each lift and performed as many repetitions as possible. Results indicated that players selected weights averaging 71.3 and 68.0% of 1-RM bench press and squat, respectively, and averaged 13.9 and 17.4 repetitions-to-failure. The Mayhew et al. equation significantly underestimated 1-RM bench press while the Epley, Lander, and Brzycki equations significantly overestimated it. In the squat, all equations significantly overestimated 1-RM values. It appears that an exponential relative muscular endurance equation can be used to estimate 1-RM bench press strength in college football players, but none of the equations evaluated were accurate for predicting l-RM squat.
(C) 1995 National Strength and Conditioning Association