Rúa-Alonso María, Mayo Xian, Mota Jorge, Kingsley J Derek, Iglesias-Soler Eliseo
Performance and Health Group, Department of Physical Education and Sport, Faculty of Sports Sciences and Physical Education, University of A Coruna, A Coruña, Spain.
Observatory of Healthy and Active Living of Spain Active Foundation, Centre for Sport Studies, King Juan Carlos University, Madrid, Spain.
Eur J Appl Physiol. 2020 Aug;120(8):1905-1919. doi: 10.1007/s00421-020-04424-3. Epub 2020 Jun 24.
We aimed to analyse the acute effects of set configuration on cardiac parasympathetic modulation and blood pressure (BP) after a whole-body resistance training (RT) session.
Thirty-two participants (23 men and 9 women) performed one control (CON) and two RT sessions differing in the set configuration but with the same intensity (15RM load), volume (200 repetitions) and total resting time (360 s between sets for each exercise and 3 min between exercises): a long set configuration (LSC: 4 sets of 10 repetitions with 2 resting minutes) and a short set configuration session (SSC, 8 sets of 5 repetitions with 51 resting seconds). Heart rate variability, baroreflex sensitivity, the low frequency of systolic blood pressure oscillations (LFSBP), BP and lactatemia were evaluated before and after the sessions and mechanical performance was evaluated during exercise.
LSC induced greater reductions on cardiac parasympathetic modulation versus SSC after the session and the CON (p < 0.001 to p = 0.024). However, no LFSBP and BP significant changes were observed. Furthermore, LSC caused a higher lactate production (p < 0.001) and velocity loss (p ≤ 0.001) in comparison with SSC.
These findings suggest that SSC attenuates the reduction of cardiac parasympathetic modulation after a whole-body RT, improving the mechanical performance and decreasing the glycolytic involvement, without alterations regarding vascular tone and BP.
我们旨在分析全身抗阻训练（RT） session 后，训练组设置对心脏副交感神经调节和血压（BP）的急性影响。
32名参与者（23名男性和9名女性）进行了一次对照（CON）和两次RT session，这两次RT session的训练组设置不同，但强度相同（15RM负荷）、训练量相同（200次重复）且总休息时间相同（每项练习组间休息360秒，练习间休息3分钟）：一个长组设置（LSC：4组，每组10次重复，休息2分钟）和一个短组设置session（SSC，8组，每组5次重复，休息51秒）。在session前后评估心率变异性、压力反射敏感性、收缩压振荡的低频（LFSBP）、BP和血乳酸水平，并在运动期间评估机械性能。
与SSC和CON相比，session后LSC导致心脏副交感神经调节的降低幅度更大（p < 0.001至p = 0.024）。然而，未观察到LFSBP和BP的显著变化。此外，与SSC相比，LSC导致更高的乳酸生成（p < 0.001）和速度损失（p≤0.001）。
这些发现表明，SSC可减轻全身RT后心脏副交感神经调节的降低，改善机械性能并减少糖酵解参与，而不会改变血管张力和BP。
