Postexercise blood flow restriction does not enhance muscle hypertrophy induced by multiple-set high-load resistance exercise
Postexercise blood flow restriction does not enhance muscle hypertrophy induced by multiple-set high-load resistance exercise
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DOI：
10.1111/cpf.12421
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发表时间：
2018-05-01
影响因子：
1.8
通讯作者：
Ishii, Naokata
中科院分区：
文献类型：
--
作者：
Madarame, Haruhiko;Nakada, Satoshi;Ishii, Naokata
为了测试运动后血流限制（PEBFR）在实际训练项目中的适用性，我们研究了PEBFR是否增强了多组高负荷抗阻运动（RE）引起的肌肉肥大。七名男性完成了为期八周的膝盖伸肌RE计划。采用受试者内设计，一条腿接受RE+PEBFR，而对侧腿仅接受RE。在每次运动中，参与者首先对RE腿进行三组单侧膝关节伸展运动，大约是其一次重复最大值的70%，然后对RE+PEBFR腿进行三组。完成第三组后，立即用气压袖带在100 - 150 mmHg的压力下压迫RE+PEBFR腿的近端部分5 min。如果参与者可以在连续两个锻炼时段中进行三组10次重复，则下一个锻炼时段的工作量增加5%。在8周训练期前后和随后的8周停训期后测量膝伸肌的肌肉厚度和力量。有一个时间的主效应，但没有条件×时间的相互作用或条件的主效应的肌肉厚度和力量。肌肉厚度和强度增加后，独立的条件下的训练期。这一结果表明，PEBFR将不是一个有效的训练方法，至少在早期阶段的适应高负荷阻力运动。
To test the applicability of postexercise blood flow restriction (PEBFR) in practical training programmes, we investigated whether PEBFR enhances muscle hypertrophy induced by multiple-set high-load resistance exercise (RE). Seven men completed an eight-week RE programme for knee extensor muscles. Employing a within-subject design, one leg was subjected to RE+PEBFR, whereas contralateral leg to RE only. On each exercise session, participants performed three sets of unilateral knee extension exercise at approximately 70% of their one-repetition maximum for RE leg first, and then performed three sets for RE+PEBFR leg. Immediately after completion of the third set, the proximal portion of the RE+PEBFR leg was compressed with an air-pressure cuff for 5min at a pressure ranging from 100 to 150mmHg. If participants could perform 10 repetitions for three sets in two consecutive exercise sessions, the work load was increased by 5% at the next exercise session. Muscle thickness and strength of knee extensor muscles were measured before and after the eight-week training period and after the subsequent eight-week detraining period. There was a main effect of time but no conditionxtime interaction or main effect of condition for muscle thickness and strength. Both muscle thickness and strength increased after the training period independent of the condition. This result suggests that PEBFR would not be an effective training method at least in an early phase of adaptation to high-load resistance exercise.