Wider grips
increase pectoralis major sternocostal head activity.
In contrast, increasing relative load in the bench press
increases pectoralis major muscle activity.
Not exact matches
The surgeons hypothesize that the
pectoralis major tears «can be attributed to the
increase in both intensity and frequency of physical training that occurs during deployments to the war zone.»
Your upper back muscles hold your shoulders back, and play a bigger role in
increasing the width of your upper body than the
pectoralis major muscle of the chest.
They found that EMG amplitude
increased with
increasing load in the deltoid only in the second pull, turnover, and recovery phases; in the biceps in the transition, second pull, turnover, and recovery phases; in the triceps only in the recovery phase, in the latissimus dorsi only in the first phase, and not at all in the
pectoralis major.
The pre-exhaustion method might not be an effective technique to
increase the extent of neuromuscular recruitment for larger muscle groups (e.g.
pectoralis major for the bench press) when preceded by a single - joint movement (e.g. pec - deck fly).
However, the risk of muscles tears
increases because of the greater stretch in the
pectoralis major.
Since the other prime movers (including the triceps brachii) did not display such close relationships with
increasing bench press strength, these findings demonstrate that the bench press is an ideal exercise for
increasing the size of the
pectoralis major muscles, particularly when a wide grip variation is used.
Assessing the effect of load, Pinto et al. (2013) found
increases in
pectoralis major muscle activity with
increasing relative loads from 60, 70, 80 to 90 % of 1RM when performing the free - weight bench press.
Using a reverse (supinated) grip could
increase the involvement of the clavicular part of the
pectoralis major.