EFFECT OF MOVEMENT VELOCITY ON THE RELATIONSHIP BETWEEN TRAINING LOAD AND THE NUMBER OF REPETITIONS OF BENCH PRESS
EFFECT OF MOVEMENT VELOCITY ON THE RELATIONSHIP BETWEEN TRAINING LOAD AND THE NUMBER OF REPETITIONS OF BENCH PRESS
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运动速度对训练负荷与卧推重复次数关系的影响
DOI：
10.1519/16794.1
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发表时间：
2006
影响因子：
3.2
通讯作者：
P. Sinclair
中科院分区：
文献类型：
--
作者：
A. Sakamoto;P. Sinclair
研究了运动速度对卧推负荷强度与重复次数关系的影响。13名健康男性（年龄= 21.7 ± 1.0岁;体重= 76.8 ± 2.5 kg; 1次重复最大值[1 RM] = 99.5 ± 6.0 kg）自愿参加实验，他们参与了定期的重量训练。受试者在史密斯机器上以5种不同的强度（40- 80%1RM）进行卧推，重复4种速度条件（慢：0.15 ± 0.03 m·s−1;中等：0.32 ± 0.07 m·s−1;快：0.52 ± 0.12 m·s−1;弹道：最大速度），在1 RM测试后随机分配5个实验阶段。速度显著改变了强度（%1RM）和重复次数之间的关系（p < 0.001），速度越快，重复次数越多。强度和速度之间的显著相互作用意味着，在较低强度下，速度对重复次数的影响要大得多。这些结果表明，在快速运动中使用拉伸缩短周期的好处超过了力-速度关系的相关缺点。本研究的实际应用是，当被训练者被分配特定RM值的阻力训练时，除非在训练期间控制速度，否则举重强度（%1RM）或重量将不一致。
This study investigated the effect of movement velocity on the relationship between loading intensity and the number of repetitions of bench press. Thirteen healthy men (age = 21.7 ± 1.0 years; weight = 76.8 ± 2.5 kg; 1 repetition maximum [1RM] = 99.5 ± 6.0 kg), who were involved in regular weight training, voluntarily participated in the experiment. Subjects performed bench presses on a Smith machine at 5 different intensities (40–80% 1RM), repeated for 4 velocity conditions (slow: 0.15 ± 0.03 m·s−1; medium: 0.32 ± 0.07 m·s−1; fast: 0.52 ± 0.12 m·s−1; ballistic: maximum velocity), which were randomly assigned over 5 experimental sessions after a 1RM test. Velocity significantly changed the relationship between intensity (%1RM) and the number of reps performed (p < 0.001), with faster velocities producing a higher number of reps. A significant interaction between intensity and velocity meant that velocity had a much greater effect on repetitions at lower intensities. These results suggest that the benefits of using a stretch-shortening cycle during faster movements outweigh the associated disadvantages from the force–velocity relationship. The practical applications of this study are that, when trainees are assigned a resistance training with specific RM values, the lifted intensity (%1RM) or weights will not be consistent unless velocity is controlled during training.