Wilk Michal, Gepfert Mariola, Krzysztofik Michal, Golas Artur, Mostowik Aleksandra, Maszczyk Adam, Zajac Adam
Department of Sports Training, Jerzy Kukuczka Academy of Physical Education in Katowice, Katowice, Poland.
Department of Statistics and Methodology, Jerzy Kukuczka Academy of Physical Education in Katowice, Katowice, Poland.
J Hum Kinet. 2019 Aug 21;68:49-57. doi: 10.2478/hukin-2019-0055. eCollection 2019 Aug.
The aim of the study was to determine the effect of the wide-grip bench press (WGBP) and the close-grip bench press (CGBP) on the number of performed repetitions (REPs) and time under tension (TUT) using a variable tempo of movement. Twenty (20) women experienced in resistance training were enrolled in the study (1RM-CGBP = 55.2 ± 9.5 kg; 1RM-WGBP = 52.7 ± 8.5 kg). Participants performed 5 sets of the BP with a maximal number of REPs at 70%1RM. Different tempos of movement, i.e., slow (6/0/X/0) and fast (2/0/X/0), and grip widths, i.e., the CGBP and the WGBP, were employed. The following variables were registered: maximal number of repetitions in every set (REP), total number of repetitions performed in 5 sets (TREP), maximal time under tension in every set (TUT) and total time under tension in 5 sets (TTUT). The two-way ANOVA revealed statistically significant differences between the WGBP and the WGBP in TUT (p < 0.05) and TTUT (p < 0.01), as well as between the CGBP and the CGBP in TUT (p < 0.01) and TTUT (p < 0.01). Significant differences between the WGBP and the WGBP were also observed in REP (p < 0.01) and TREP (p < 0.01) as well as between the CGBP and the CGBP in REP (p < 0.01) and TREP (p < 0.01). No significant differences between the WGBP and the CGBP nor the WGBP and the CGBP were found. The study demonstrates that the tempo of movement, regardless of the width grip, has a significant effect on the volume of effort in resistance training.
本研究的目的是确定采用可变运动节奏时，宽握卧推（WGBP）和窄握卧推（CGBP）对重复次数（REPs）和张力下时间（TUT）的影响。二十（20）名有抗阻训练经验的女性参与了该研究（1RM-CGBP = 55.2±9.5千克；1RM-WGBP = 52.7±8.5千克）。参与者以70%1RM的最大重复次数进行5组卧推。采用了不同的运动节奏，即慢节奏（6/0/X/0）和快节奏（2/0/X/0），以及握距宽度，即窄握卧推和宽握卧推。记录了以下变量：每组的最大重复次数（REP）、5组中进行的重复总数（TREP）、每组的最大张力下时间（TUT）以及5组中的总张力下时间（TTUT）。双向方差分析显示，宽握卧推和窄握卧推在TUT（p < 0.05）和TTUT（p < 0.01）方面存在统计学显著差异，窄握卧推和窄握卧推在TUT（p < 0.01）和TTUT（p < 0.01）方面也存在显著差异。宽握卧推和窄握卧推在REP（p < 0.01）和TREP（p < 0.01）方面以及窄握卧推和窄握卧推在REP（p < 0.01）和TREP（p < 0.01）方面也观察到显著差异。宽握卧推与窄握卧推之间以及宽握卧推与窄握卧推之间未发现显著差异。该研究表明，无论握距宽度如何，运动节奏对抗阻训练中的努力程度有显著影响。
