Amani-Shalamzari Sadegh, Rajabi Saeedeh, Rajabi Hamid, Gahreman Daniel E, Paton Carl, Bayati Mahdi, Rosemann Thomas, Nikolaidis Pantelis Theodoros, Knechtle Beat
Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, Kharazmi University, Tehran, Iran.
College of Health and Human Sciences, Charles Darwin University, Darwin, NT, Australia.
Front Physiol. 2019 Jun 26;10:810. doi: 10.3389/fphys.2019.00810. eCollection 2019.
The purpose of this study was to compare the effects of different combinations of blood flow restriction (BFR) pressure and exercise intensity on aerobic, anaerobic, and muscle strength adaptations in physically active collegiate women. Thirty-two women (age 22.8 ± 2.9 years; body mass index 22.3 ± 2.7 kg/m) were randomly assigned into four experimental training groups: (a) increasing BFR pressure with constant exercise intensity (IP-CE), (b) constant partial BFR pressure with increasing exercise intensity (CP-IE), (c) constant complete BFR pressure with increasing exercise intensity (CP-IE), and (d) increasing BFR pressure with increasing exercise intensity (IP-IE). The participants completed 12 training sessions comprised of repeated bouts of 2 min running on a treadmill with BFR interspersed by 1-min recovery without BFR. Participants completed a series of tests to assess muscle strength, aerobic, and anaerobic performances. Muscle strength, anaerobic power, and aerobic parameters including maximum oxygen consumption (VOmax), time to fatigue (TTF), velocity at VOmax (vVOmax), and running economy (RE) improved in all groups ( ≤ 0.01). The CP-IE group outscored the other groups in muscle strength, RE, and TTF ( < 0.05). In summary, participants with complete occlusion experienced the greatest improvements in muscle strength, aerobic, and anaerobic parameters possibly due to increased oxygen deficiency and higher metabolic stress.
本研究的目的是比较血流限制（BFR）压力和运动强度的不同组合对身体活跃的大学女生有氧、无氧和肌肉力量适应性的影响。32名女性（年龄22.8±2.9岁；体重指数22.3±2.7kg/m）被随机分为四个实验训练组：（a）运动强度恒定但BFR压力增加（IP-CE），（b）运动强度增加但BFR压力恒定且为部分压力（CP-IE），（c）运动强度增加但BFR压力恒定且为完全压力（CP-IE），以及（d）运动强度增加且BFR压力增加（IP-IE）。参与者完成了12次训练课程，包括在跑步机上进行2分钟的重复跑步回合，期间穿插BFR，每次跑步后有1分钟无BFR的恢复时间。参与者完成了一系列测试以评估肌肉力量、有氧和无氧表现。所有组的肌肉力量、无氧功率和有氧参数，包括最大摄氧量（VOmax）、疲劳时间（TTF）、VOmax时的速度（vVOmax）和跑步经济性（RE）均有所改善（≤0.01）。CP-IE组在肌肉力量、RE和TTF方面的得分高于其他组（<0.05）。总之，完全闭塞的参与者在肌肉力量、有氧和无氧参数方面的改善最大，这可能是由于缺氧增加和更高的代谢压力所致。
