UB-PRESS-X-BENCH-PRESS-LOAD-MUSCLE-%-INVOLVEMENT


BENCH PRESS – LOAD – MUSCLE % INVOLVEMENT


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Effect of Barbell Weight on the Structure of the Flat Bench Press – 2017 – Krol
– 20 healthy, male recreational weight trainers with at least 1 year of lifting experience
– performed consecutive sets of a single repetition with an increasing load (about 70, 80, 90, and 100% 1RM
pectoralis major: concentric – minimal difference
triceps brachii: concentric – 100 >> 90 >> 80 >> 70
anterior deltoid: concentric – 100 > 90 > 80 > 70
– significant change as weight was increased; at 100% 1RM the pectoralis major changes from being the prime mover to being the supportive prime mover
– at the same time, the role of the prime mover is taken on by the deltoid anterior. TheĀ triceps brachii, in particular, clearly shows a greater involvement

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