Sañudo Borja, Bartolomé Diego, Tejero Sergio, Ponce-González Jesús Gustavo, Loza Juan Pedro, Figueroa Arturo
Department of Physical Education and Sports, University of Seville, Seville, Spain.
Department of Physical Education and Sports, University of Las Palmas de Gran Canarias, Las Palmas, Spain.
Front Physiol. 2020 Apr 15;11:310. doi: 10.3389/fphys.2020.00310. eCollection 2020.
This study aimed to determine whether an active recovery with added whole-body electromyostimulation (WB-EMS) can increase blood flow and lead to blood lactate removal after intense exercise. Thirty-five healthy individuals (23.1 ± 4.6 years) were randomly assigned to: (a) an experimental group using active recovery together with the WB-EMS ( = 18) or (b) a control group using the same active recovery protocol with the suit with no-stimulation (CON, = 17). Participants performed a maximal graded exercise test followed by an active recovery protocol (walking at 40% of their maximum aerobic velocity). During the recovery, participants in WB-EMS and CON received continuous stimulation at 7 Hz or no stimulation, respectively. Heart rate, blood lactate concentrations, pain/discomfort, and hemodynamic measurements were recorded before and after the test, and repeated immediately after and at min 30 and 60. The between-group analysis showed a substantially greater Peak blood velocity (-0.27 [-0.68; 0.14]) in WB-EMS compared to CON. The pain/discomfort levels were also lower in WB-EMS compared with CON (0.66 [-0.12; 1.45]). Non-significant differences in participants' blood lactate were observed in WB-EMS compared with CON both immediately; at 30and 60 min. Our findings suggest that increased local blood flow induced by WB-EMS may have contributed to greater lactate removal from active muscles and blood lactate clearance. WB-EMS may be an effective means of increasing muscle blood flow after a maximal graded exercise test and could result in improved recovery.
本研究旨在确定在剧烈运动后，添加全身肌电刺激（WB-EMS）的主动恢复是否能增加血流量并促进血乳酸清除。35名健康个体（23.1±4.6岁）被随机分为：（a）实验组，采用主动恢复并结合WB-EMS（n = 18）；或（b）对照组，采用相同的主动恢复方案，但穿着无刺激的套装（CON，n = 17）。参与者先进行了一次最大分级运动测试，随后进行主动恢复方案（以其最大有氧速度的40%行走）。在恢复过程中，WB-EMS组和CON组的参与者分别接受7Hz的持续刺激或无刺激。在测试前后记录心率、血乳酸浓度、疼痛/不适和血流动力学测量值，并在测试后立即、30分钟和60分钟重复记录。组间分析显示，与CON组相比，WB-EMS组的峰值血流速度显著更高（-0.27[-0.68；0.14]）。与CON组相比，WB-EMS组的疼痛/不适水平也更低（0.66[-0.12；1.45]）。在测试后立即、30分钟和60分钟时，WB-EMS组与CON组参与者的血乳酸水平无显著差异。我们的研究结果表明，WB-EMS诱导的局部血流量增加可能有助于从活跃肌肉中清除更多乳酸并促进血乳酸清除。WB-EMS可能是在最大分级运动测试后增加肌肉血流量的有效方法，并可能改善恢复情况。
