Abstract
The aim of the study was to compare the electromyographic (EMG) activity of the following muscles: clavicular portion of pectoralis major, sternal portion of pectoralis major, long portion of triceps brachii, anterior deltoid, posterior deltoid and latissimus dorsi during dynamic contractions between flat horizontal bench press and barbell pulloverexercises. The sample comprised 12 males individuals experienced in resistance training. The volunteers made three visits to the laboratory. The first one consisted of 12 repetitions of the exercises for the electromyographic data collection. The results showed a higher EMG activation of the pectoralis major and anterior deltoid muscles in the flat horizontal bench press in comparison with the barbell pullover. The triceps brachii and latissimus dorsi muscles were more activated in the barbell pullover.
Highlights
The deltoid and pectoralis major muscles are the main muscles of the glenohumeral joint, with an important function in daily activities and in numerous sports skills (Santana, Vera-Garcia, & McGill, 2007)
The results indicated significant differences between the horizontal bench press and barbell pullover
When checking the results of the anterior deltoid (Figure 4), we observed a higher electromyographic activity during the horizontal bench press compared to the barbell pullover (p < 0.01, d = 0.802, large effect size)
Summary
The deltoid and pectoralis major muscles are the main muscles of the glenohumeral joint, with an important function in daily activities and in numerous sports skills (Santana, Vera-Garcia, & McGill, 2007). Other exercises and variations of the horizontal bench press have been used to diversify training These changes usually include modifications in the angle of the equipment seat (Barnett, Kippers, & Turner, 1995; Glass, & Armstrong, 1997; Trebs, Brandenburg, & Pitney, 2010), as Electromyography during bench press and barbell pullover well as the use of other exercise equipments (McCaw & Friday, 1994; Trebs, Brandenburg, & Pitney, 2010), dumbbell exercises (Uribe et al, 2010), dumbbell fly exercises (Welsch, Bird, & Mayhew, 2005), cables and pulleys (Clemons & Aron, 1997; Sadri et al, 2011), and stable and unstable surfaces (Goodman et al, 2008). These are exercise alternatives routinely prescribed as a way to complement training
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