Effect of Barbell Weight on the Structure of the Flat Bench Press

Abstract

Król, H and Gołaś, A. Effect of barbell weight on the structure of the flat bench press. J Strength Cond Res 31(5): 1321–1337, 2017—In this study, we have used the multimodular measuring system SMART. The system consisted of 6 infrared cameras and a wireless module to measure muscle bioelectric activity. In addition, the path of the barbell was measured with a special device called the pantograph. Our study concerns the change in the structure of the flat bench press when the weight of the barbell is increased. The research on the bench press technique included both the causes of the motion: the internal structure of the movement and the external kinematic structure showing the effects of the motion, i.e., all the characteristics of the movement. Twenty healthy, male recreational weight trainers with at least 1 year of lifting experience (the mean ± SD = 3.3 ± 1.6 years) were recruited for this study. The subjects had a mean body mass of 80.2 ± 8.6 kg, an average height of 1.77 ± 0.08 m, and their average age was 24.7 ± 0.9 years. In the measuring session, the participants performed consecutive sets of a single repetition of bench pressing with an increasing load (about 70, 80, 90, and 100% of their 1 repetition maximum [1RM]). The results showed a significant change in the phase structure of the bench press, as the barbell weight was increased. While doing the bench press at a 100% 1RM load, 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 deltoideus anterior. The triceps brachii, in particular, clearly shows a greater involvement.

Post activation potentiation (PAP) and its application in the development of speed and explosive strength in female soccer players: A review

“…Most studies documented at least minor improvements in jumping test results following PAP exercise protocols. In addition, there is a lack of studies describing the PAP phenomenon using the internal structure of the movement (Krol andGolas 2017, Golas 2018), different time of tension (Wilk et al 2019a, Wilk et al 2019b and training using blood flow restriction , which should constitute future research directions. The studies presented in this review have also demonstrated the effectiveness of PAP in warm-up protocols on explosive strength, agility and jumping performance.…”

Effect of acute antagonist static stretching on upper-body agonist power

“…For consistency, the individual's grip-width was recorded and applied to all their trials. The individual lowered the bar until it lightly touched the mid-sternum at nipple level 43 where it remained for one second before the movement was initiated. 44 Next, participants were instructed to extend the arms explosively, until full extension of the elbows occurred, and to project the barbell straight upwards and perpendicular to the ground.…”

Movement Features Which Describe the Flat Bench Press

“…Twenty healthy college-age recreational weight trainers volunteered to participate in this study [3]. Since the assessment and improvement of techniques concerning sports activities always refer to a specific person, the paper presents the characteristics of the movement features for the representatives of two power sport disciplines.…”

“…We followed the methods of Król and Gołaś [3], and a multidimensional movement analysis was made with the measuring system Smart-E (BTS, Italy), which consisted of six infrared cameras (120 Hz) and a wireless module to measure muscle bioelectric activity (Pocket EMG).…”