Amani-Shalamzari Sadegh, Farhani Farid, Rajabi Hamid, Abbasi Ali, Sarikhani Ali, Paton Carl, Bayati Mahdi, Berdejo-Del-Fresno Daniel, Rosemann Thomas, Nikolaidis Pantelis Theodoros, Knechtle Beat
Department of Exercise Physiology, Faculty of Physical Education and Sports Sciences, Kharazmi University, Tehran, Iran.
Department of Biomechanics and Sports Injuries, Faculty of Physical Education and Sports Science, Kharazmi University, Tehran, Iran.
Front Physiol. 2019 May 22;10:614. doi: 10.3389/fphys.2019.00614. eCollection 2019.
The aim of this study was to investigate the effect of leg blood flow restriction (BFR) applied during a 3-a-side futsal game on strength-related parameters. Twelve male futsal players were randomly assigned into two groups ( = 6 for each group) during 10 training sessions either with or without leg BFR. Prior to and post-training sessions, participants completed a series of tests to assess anabolic hormones and leg strength. Pneumatic cuffs were initially inflated to 110% of leg systolic blood pressure and further increased by 10% after every two completed sessions. In comparison with baseline, the resting post-training levels of myostatin ( = 0.002) and IGF-1/MSTN ratio ( = 0.006) in the BFR group changed, whereas no change in the acute level of IGF-1 and myostatin after exercise was observed. Peak torque of knee extension and flexion increased in both groups ( < 0.05). A trend of increased neural activation of all heads of the quadriceps was observed in both groups, however, it was statistically significant only for rectus femoris in BFR ( = 0.02). These findings indicated that the addition of BFR to normal futsal training might induce greater neuromuscular benefits by increasing muscle activation and augmenting the hormonal response.
本研究的目的是调查在三人制室内五人足球比赛期间施加腿部血流限制（BFR）对力量相关参数的影响。12名男性室内五人足球运动员在10次训练课程中被随机分为两组（每组 = 6人），一组施加腿部BFR，另一组不施加。在训练课程前后，参与者完成了一系列测试，以评估合成代谢激素和腿部力量。气动袖带最初充气至腿部收缩压的110%，每完成两节课后再增加10%。与基线相比，BFR组训练后静息状态下的肌抑素水平（ = 0.002）和IGF-1/MSTN比值（ = 0.006）发生了变化，而运动后IGF-1和肌抑素的急性水平未观察到变化。两组的膝关节伸展和屈曲峰值扭矩均增加（ < 0.05）。两组均观察到股四头肌所有头的神经激活有增加趋势，然而，仅BFR组的股直肌神经激活具有统计学意义（ = 0.02）。这些发现表明，在正常室内五人足球训练中添加BFR可能通过增加肌肉激活和增强激素反应而带来更大的神经肌肉益处。
