Relationship between limb and trunk muscle hypertrophy following high-intensity resistance training and blood flow-restricted low-intensity resistance training
Relationship between limb and trunk muscle hypertrophy following high-intensity resistance training and blood flow-restricted low-intensity resistance training
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高强度抗阻训练与血流受限低强度抗阻训练后四肢和躯干肌肉肥大的关系
DOI：
10.1111/j.1475-097x.2011.01022.x
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发表时间：
2011
影响因子：
1.8
通讯作者：
Abe T.
中科院分区：
文献类型：
--
作者：
Yasuda T;Ogasawara R;Sakamaki M;Bemben MG;Abe T.
我们研究了在高强度阻力训练（HIT）或血流受限的低强度阻力训练（LI - BFR）项目中训练诱导的肢体和躯干肌肉肥大之间的关系。30名年轻男性被分为三组：HIT (n= 10), LI - BFR （n= 10）和非训练对照组（n= 10）。HIT组和LI - BFR组分别进行75%和30%的单次最大卧推（1 - RM）练习，每周3天，持续6周。在训练期间，LI - BFR组在双臂最近端区域戴上弹性袖口。肌肉横截面积（CSA）和1 - RM卧推力量在最后一次训练前和训练后3天测量。总训练量（举重重量×重复次数）在两个训练组之间是相似的。训练导致两个训练组的卧推1‐RM显著增加（P< 0.05），但CON组没有。HIT组肱三头肌和胸大肌CSA分别增加了8.8%和15.8% (P< 0.01)， LI - BFR组分别增加了4.9% （P< 0.05）和8.3% (P< 0.01)， CON组没有增加（分别增加了- 1.1%和0.0%）。HIT组肱三头肌CSA与胸大肌CSA升高有显著相关性（r= 0.70，P< 0.05）；然而，LI - BFR组的相关性较低且不显著（r= 0.54）。我们的研究结果表明，肢体和躯干肌肉肥大在HIT期间同时发生，而在LI - BFR期间则不会发生，这可能是由于训练期间手臂和胸部肌肉激活的个体差异。
We examined the relationship between training‐induced limb and trunk muscle hypertrophy in high‐intensity resistance training (HIT) or blood flow–restricted low‐intensity resistance training (LI‐BFR) programmes. Thirty young men were divided into three groups: HIT (n= 10), LI‐BFR (n= 10) and non‐training control (CON,n= 10). The HIT and LI‐BFR groups performed 75% and 30%, respectively, of one‐repetition maximal (1‐RM) bench press exercise, 3 days per week for 6 weeks. During the training sessions, the LI‐BFR group wore elastic cuffs around the most proximal region of both arms. Muscle cross‐sectional area (CSA) and 1‐RM bench press strength were measured before and 3 days after the final training session. Total training volumes (lifting weight × number of repetitions) for all of the sessions were similar between the two training groups. The training led to a significant increase (P<0·05) in bench press 1‐RM in the two training groups, but not in the CON group. Triceps brachii and pectoralis major muscle CSA increased 8·8% and 15·8% (P<0·01), respectively, in the HIT group and 4·9% (P<0·05) and 8·3% (P<0·01), respectively, in the LI‐BFR group, but not in the CON group (−1·1% and 0·0%, respectively). There was significant correlation (r= 0·70,P<0·05) between increases in triceps brachii and pectoralis major muscle CSA in the HIT group; however, the correlation was lower and non‐significant in the LI‐BFR group (r= 0·54). Our results suggest that limb and trunk muscle hypertrophy occurs simultaneously during HIT but not during LI‐BFR, possibly owing to individual differences in activation of the arm and chest muscles during the training sessions.