Slow-Speed Low-Intensity but Not Normal-Speed High-Intensity Resistance Exercise Maintains Endothelial Function
Slow-Speed Low-Intensity but Not Normal-Speed High-Intensity Resistance Exercise Maintains Endothelial Function
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慢速低强度而非正常速度高强度阻力运动可维持内皮功能
DOI：
10.1080/02701367.2021.2022586
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发表时间：
2022
影响因子：
2.2
通讯作者：
Eisuke Ochi
中科院分区：
文献类型：
--
作者：
Yosuke Tsuchiya;Takuma Morishima;Eisuke Ochi
目的：每周两到三次的高强度抗阻运动被认为是肌肉肥大的最佳选择，尽管它会显着升高血压（BP）。相反，低强度和强直性力量产生（慢-低）的慢速抗阻运动可诱导肌肉肥大而不升高血压。然而，目前尚不清楚慢低后内皮功能如何变化。因此，本研究旨在比较慢速高强度抗阻运动与正常速度高强度抗阻运动是否能维持肱动脉内皮功能（正常-高）和正常速度与低强度阻力运动方法：11名健康的年轻男性进行了腿部伸展，（3组8次重复，1 RM的50%）、正常高（3组8次重复，1 RM的80%）和正常低（3组8次重复，1 RM的50%）。结果：运动后30 min和60 min，正常高血压组肱动脉血流介导的舒张功能（FMD）分别下降3.7 ± 2.7%和3.7 ± 2.8%（P <0.05）;相比之下，慢低和正常低显示与基线无显著差异。在运动后30和60 min，正常-高组的FMD显著低于慢-低组和正常-低组（P <0.05）。此外，收缩压显着较高，在正常-高与缓慢-低和正常-low.Conclusion：我们的结论是，缓慢-低并不损害肱动脉FMD伴随较低的收缩压，因此可能是一个有用的模式，运动训练，以改善肌肉肥大，而不会引起短暂的内皮功能障碍。
Purpose: High-intensity resistance exercise two or three times a week has been considered optimal for muscle hypertrophy, although it can remarkably elevate blood pressure (BP). In contrast, slow-speed resistance exercise with low intensity and tonic force generation (slow-low) can induce muscle hypertrophy without elevating BP. However, it is unclear how endothelial function changes after slow-low. Therefore, this study examined whether slow-low would maintain brachial artery endothelial function in comparison with normal-speed with high intensity resistance exercise (normal-high) and normal-speed with low-intensity resistance exercise (normal-low).Methods: Eleven healthy young men performed leg-extensions with slow-low (3 sets of 8 repetitions at 50% of 1RM), normal-high (3 sets of 8 repetitions at 80% of 1RM), and normal-low (3 sets of 8 repetitions at 50% of 1RM). Flow-mediated dilation (FMD) in the brachial artery was evaluated at pre-exercise and at 10, 30, and 60 min after exercise.Result: The results showed that normal-high caused significant impairment of FMD at 30 (3.7 ± 2.7%) and 60 (3.7 ± 2.8%) min after exercise (P < .05). In contrast, slow-low and normal-low showed no significant difference from baseline. FMD was significantly lower in normal-high compared with slow-low and normal-low at 30 and 60 min after exercise (P < .05). Additionally, systolic BP was significantly higher during normal-high compared with slow-low and normal-low (P < .05).Conclusion: We concluded that slow-low did not impair brachial artery FMD concomitant with lower systolic BP, and may therefore be a useful mode of exercise training to improve muscle hypertrophy without provoking transient endothelial dysfunction.
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阻力训练。
DOI：
10.1126/sageke.2004.6.nf18
发表时间：
2004
期刊：
Science of aging knowledge environment : SAGE KE
影响因子：
--
作者：
M. Leslie
通讯作者：
M. Leslie
DOI：
10.1249/01.mss.0000175865.17614.74
发表时间：
2005-11-01
期刊：
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
影响因子：
--
作者：
Jurca, R;Lamonte, MJ;Blair, SN
通讯作者：
Blair, SN
影响因子：
3.3
作者：
MACDOUGALL, JD;MCKELVIE, RS;BUICK, F
通讯作者：
BUICK, F
影响因子：
18.4
作者：
Steven T. Linsenbardt;T. R. Thomas;Richard W. Madsen PhDt
通讯作者：
Richard W. Madsen PhDt
影响因子：
3.3
作者：
Takarada, Y;Nakamura, Y;Ishii, N
通讯作者：
Ishii, N