Tsoukos Athanasios, Krzysztofik Michał, Wilk Michal, Zajac Adam, Panagiotopoulos Michail G, Psarras Ilias-Iason, Petraki Despina P, Terzis Gerasimos, Bogdanis Gregory C
School of Physical Education and Sports Science, National & Kapodistrian University of Athens, Athens, Greece.
Institute of Sport Sciences, Jerzy Kukuczka Academy of Physical Education in Katowice, Katowice, Poland.
J Hum Kinet. 2024 Apr 15;91(Spec Issue):61-76. doi: 10.5114/jhk/185524. eCollection 2024 Mar.
This study compared the acute effects of different ranges of motion (ROM) on fatigue and metabolic responses during repeated sets of bench press exercise. Ten resistance trained men performed three sets to momentary failure with two-min rest intervals at three different ROM: full ROM (FULL), and partial ROM in which the barbell was moved either at the bottom half (BOTTOM) or the top half (TOP) of the full barbell vertical displacement. In TOP, a higher load was lifted, and a higher total number of repetitions was performed compared to FULL and BOTTOM (130 ± 17.6 vs. 102.5 ± 15.9 vs. 98.8 ± 17.5 kg; 55.2 ± 9.8, 32.2 ± 6.5 vs. 49.1 ± 16.5 kg, respectively p < 0.01). Work per repetition was higher in FULL than TOP and BOTTOM (283 ± 43 vs. 205 ± 32 vs. 164 ± 31 J/repetition, p < 0.01). Mean barbell velocity at the start of set 1 was 21.7% and 12.8% higher in FULL compared to TOP and BOTTOM, respectively. The rate of decline in mean barbell velocity was doubled from set 1 to set 3 (p < 0.01) and was higher in FULL than both TOP and BOTTOM (p < 0.001). Also, the rate of mean barbell velocity decline was higher in BOTTOM compared to TOP (p = 0.045). Blood lactate concentration was similarly increased in all ROM (p < 0.001). Training at TOP ROM allowed not only to lift a higher load, but also to perform more repetitions with a lower rate of decline in mean barbell velocity. Despite the lower absolute load and work per repetition, fatigue was higher in BOTTOM than TOP and this may be attributed to differences in muscle length.
本研究比较了不同运动范围（ROM）对卧推练习重复组期间疲劳和代谢反应的急性影响。十名经过抗阻训练的男性在三种不同的ROM下进行三组至瞬间疲劳，每组之间休息两分钟：全ROM（FULL），以及部分ROM，其中杠铃在全杠铃垂直位移的下半部分（BOTTOM）或上半部分（TOP）移动。在TOP组中，与FULL组和BOTTOM组相比，举起的负荷更高，重复次数总数更多（分别为130±17.6 vs. 102.5±15.9 vs. 98.8±17.5千克；55.2±9.8、32.2±6.5 vs. 49.1±16.5次，p<0.01）。每次重复的功在FULL组高于TOP组和BOTTOM组（283±43 vs. 205±32 vs. 164±31焦耳/次，p<0.01）。与TOP组和BOTTOM组相比，第1组开始时杠铃的平均速度在FULL组分别高21.7%和12.8%。从第1组到第3组，杠铃平均速度的下降率增加了一倍（p<0.01），且在FULL组高于TOP组和BOTTOM组（p<0.001）。此外，BOTTOM组杠铃平均速度下降率高于TOP组（p = 0.045）。所有ROM下血乳酸浓度均有类似升高（p<0.001）。在TOP ROM进行训练不仅能举起更高的负荷，还能以更低的杠铃平均速度下降率进行更多的重复次数。尽管绝对负荷和每次重复的功较低，但BOTTOM组的疲劳程度高于TOP组，这可能归因于肌肉长度的差异。
