Effect of Accommodating Elastic Bands on Mechanical Power Output during Back Squats
Effect of Accommodating Elastic Bands on Mechanical Power Output during Back Squats
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DOI：
10.3390/sports6040151
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发表时间：
2018-12-01
期刊：
影响因子：
2.7
通讯作者：
Higuchi, Mitsuru
中科院分区：
文献类型：
--
作者：
Kubo, Takafumi;Hirayama, Kuniaki;Higuchi, Mitsuru
这项研究的目的是研究在减速阶段，用杠铃背蹲(BSQ)来调节弹力带是否会增加肌力。10名健康男性(平均标准差：年龄：23±2岁；身高：170.5+/-3.7 cm；体重：66.7±-5.4 kg；BSQ一次重复最大值：105+/-23.1 kg；BSQ 1RM/体质量：1.6+/-0.3)。受试者按随机顺序进行五种频带条件下的带阻平行BSQ(杠铃两侧可调节弹力带)。计算了减速子阶段的持续时间、平均机械功率以及加速和减速子阶段的力和速度。在减速子阶段，弹力带的BSQ产生了更大的机械功率输出、速度和力，与传统的自由重量相比(p<；0.05)。具有弹性带的BSQ在加速子阶段也能产生更大的机械功率输出和速度。然而，在加速子阶段，使用弹性带的力量输出比使用传统自由重量的要小(p<；0.05)。这项研究表明，带弹性带的BSQ在加速和减速子阶段可以获得更大的功率输出。
The aim of this study was to investigate whether accommodating elastic bands with barbell back squats (BSQ) increase muscular force during the deceleration subphase. Ten healthy men (mean standard deviation: Age: 23 +/- 2 years; height: 170.5 +/- 3.7 cm; mass: 66.7 +/- 5.4 kg; and BSQ one repetition maximum (RM): 105 +/- 23.1 kg; BSQ 1RM/body mass: 1.6 +/- 0.3) were recruited for this study. The subjects performed band-resisted parallel BSQ (accommodating elastic bands each sides of barbell) with five band conditions in random order. The duration of the deceleration subphase, mean mechanical power, and the force and velocity during the acceleration and deceleration subphases were calculated. BSQ with elastic bands elicited greater mechanical power output, velocity, and force during the deceleration subphase, in contrast to that elicited with traditional free weight (p < 0.05). BSQ with elastic bands also elicited greater mechanical power output and velocity during the acceleration subphase. However, the force output during the acceleration subphase using an elastic band was lesser than that using a traditional free weight (p < 0.05). This study suggests that BSQ with elastic band elicit greater power output during the acceleration and deceleration subphases.