运动前血流限制结合高负荷抗阻训练对骨骼肌的适应性影响。
Skeletal Muscle Adaptations to High-Load Resistance Training With Pre-Exercise Blood Flow Restriction.
机构信息
Department of Educational and Psychological Studies, USF Muscle Lab, Exercise Science Program, University of South Florida, Tampa, Florida; and.
Department of Health, Exercise Science and Recreation Management, Applied Human Health and Physical Function Laboratory, University of Mississippi, Oxford, Mississippi.
出版信息
J Strength Cond Res. 2023 Dec 1;37(12):2381-2388. doi: 10.1519/JSC.0000000000004553. Epub 2023 Aug 3.
Hammert, WB, Moreno, EN, Martin, CC, Jessee, MB, and Buckner, SL. Skeletal muscle adaptations to high-load resistance training with pre-exercise blood flow restriction. J Strength Cond Res 37(12): 2381-2388, 2023-This study aimed to determine if blood flow restriction (BFR) could augment adaptations to a high-load training protocol that was inadequate for muscle growth. Forty nontrained individuals had each arm assigned to 1 of 3 elbow flexion protocols: (a) high-load resistance training [TRAD; 4 sets to muscular failure at 70% 1 repetition maximum (1RM)], (b) low repetition high-load resistance training with pre-exercise BFR (PreBFR; 4 sets of 3 repetitions at 70% 1RM + 3 min of pre-exercise BFR), and (c) low repetition high-load resistance training (LRTRAD); 4 sets of 3 repetitions at 70% 1RM). Muscle thickness (MT), 1RM strength, and local muscular endurance (LME) of the elbow flexors were measured before and after 8 weeks. An alpha level of 0.05 was used for all comparisons. For the 50% site, MT increased for TRAD (0.211 cm, 95% confidence interval [95% CI]: 0.143-0.280), PreBFR (0.105 cm, 95% CI: 0.034-0.175), and LRTRAD (0.073 cm, 95% CI: 0.000-0.146). The change for TRAD was greater than PreBFR and LRTRAD. For the 60% site, MT increased for TRAD (0.235 cm, 95% CI: 0.153-0.317), PreBFR (0.097 cm, 95% CI: 0.014-0.180), and LRTRAD (0.082 cm, 95% CI: 0.000-0.164). The change for TRAD was greater than PreBFR and LRTRAD. For the 70% site MT increased for TRAD (0.308 cm, 95% CI: 0.247-0.369), PreBFR (0.103 cm, 95% CI: 0.041-0.166), and LRTRAD (0.070 cm, 95% CI: 0.004-0.137). The change for TRAD was greater than PreBFR and LRTRAD. One repetition maximum and LME significantly increased for each condition, with no differences between conditions. Collapsed across conditions 1RM strength increased 2.094 kg (95% CI: 1.771-2.416) and LME increased 7.0 repetitions (95% CI: 5.7-8.3). In conclusion, the application of BFR to low-repetition, high-load training did not enhance the adaptative response.
哈默特，WB，莫雷诺，EN，马丁，CC，杰西，MB 和巴克纳，SL。高负荷抗阻训练结合运动前血流限制对骨骼肌适应性的影响。J 力量与调节研究 37(12)：2381-2388，2023-本研究旨在确定血流限制（BFR）是否可以增强高负荷训练方案的适应性，而高负荷训练方案不足以促进肌肉生长。40 名未经训练的个体将其每只手臂分配到 3 种肘部屈伸方案中的 1 种：(a) 高负荷抗阻训练[TRAD；在 70% 1 次重复最大重量（1RM）下进行 4 组至肌肉力竭]，(b) 运动前 BFR 辅助的低重复高负荷抗阻训练（PreBFR；在 70% 1RM 下进行 4 组 3 次重复，外加 3 分钟运动前 BFR），和（c）低重复高负荷抗阻训练（LRTRAD）；在 70% 1RM 下进行 4 组 3 次重复）。测量肘屈肌的肌肉厚度（MT）、1RM 力量和局部肌肉耐力（LME），在 8 周前后进行测量。所有比较的显著性水平均为 0.05。对于 50%的部位，TRAD（0.211cm，95%置信区间[95%CI]：0.143-0.280）、PreBFR（0.105cm，95%CI：0.034-0.175）和 LRTRAD（0.073cm，95%CI：0.000-0.146）的 MT 均增加。TRAD 的变化大于 PreBFR 和 LRTRAD。对于 60%的部位，TRAD（0.235cm，95%CI：0.153-0.317）、PreBFR（0.097cm，95%CI：0.014-0.180）和 LRTRAD（0.082cm，95%CI：0.000-0.164）的 MT 均增加。TRAD 的变化大于 PreBFR 和 LRTRAD。对于 70%的部位，TRAD（0.308cm，95%CI：0.247-0.369）、PreBFR（0.103cm，95%CI：0.041-0.166）和 LRTRAD（0.070cm，95%CI：0.004-0.137）的 MT 均增加。TRAD 的变化大于 PreBFR 和 LRTRAD。1RM 力量和 LME 均显著增加，且各组之间无差异。将条件合并，1RM 力量增加 2.094kg（95%CI：1.771-2.416），LME 增加 7.0 次重复（95%CI：5.7-8.3）。总之，血流限制应用于低重复、高负荷训练并没有增强适应性反应。
Zotero 插件