Concurrent reliability in the military press: load-velocity ratio as a parameter for estimating maximum strength
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Abstract
Military press is a multi-joint exercise that can be assessed by considering the muscle force-velocity relationship. The objective of this study was to identify the concurrent reliability in estimating maximum strength determined through execution velocity using the MyLift app and the National Strength and Conditioning Association (NSCA) Training Load Chart. Methods: Five young adult subjects with experience in resistance training participated. They performed up to six sets of the military press exercise, starting with 70 % of their 1RM and a single repetition at maximum velocity in the concentric phase with a two-minute recovery period between sets. Performance velocity was assessed in each set. Results: It was found that execution velocity below 0.03 m/s was close to the calculated 1RM value reported in the NSCA Training Load Chart. Furthermore, as the sets progressed, there was a greater difference in execution velocity compared to the first set. This research allows coaches and sports science professionals to accurately predict the percentage of RM using the velocity in m/s observed during the first repetition of each set using a mobile app called MyLift.
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