Hermosilla-Perona Francisco, Martín-Castellanos Adrián, Pereira-Monteiro Marcos Raphael, García Javier Iglesias, Barba-Ruíz Manuel, Heredia-Elvar Juan Ramón
AExPH. Facultad de Ciencias Biomédicas y de la Salud., Universidad Alfonso X El Sabio, 28691, Madrid, Spain.
Facultad de Ciencias de la Vida y la Naturaleza, Universidad Nebrija, 28015, Madrid, Spain.
Sci Rep. 2025 Jul 3;15(1):23766. doi: 10.1038/s41598-025-08432-1.
This study analyzed physiological and mechanical responses to different circuit resistance training structures in young adults. A descriptive cross-sectional study was conducted to evaluate the acute effects of four distinct circuit resistance training protocols on blood lactate, heart rate, and countermovement jump (CMJ) mechanical variables in 30 experienced young adults. The training sessions differed in both exercise order (alternated vs. grouped) and training volume (maximal vs. submaximal repetitions): A1 (alternated, maximal), G1 (grouped, maximal), A2 (alternated, submaximal), and G2 (grouped, submaximal). Each protocol included upper and lower limb exercises performed on guided machines with standardized rest intervals. Mechanical properties of the CMJ were assessed before and after each session, lactate concentrations were measured pre-, mid-, and post-exercise, and heart rate was continuously monitored throughout all sessions. Results showed no significant differences in CMJ height between groups; however, power-related variables experienced greater declines in the high-volume protocols (A1 and G1). The rate of force development was also more negatively affected in these higher-volume conditions. Mid-session blood lactate levels differed significantly across groups, particularly between high- and low-volume protocols, although no differences were observed at the end of the sessions. Heart rate varied significantly between the 4th and 12th minute of exercise, reflecting the influence of volume rather than exercise order. In conclusion, training volume appears to be the primary factor influencing both physiological and mechanical responses during circuit resistance training, rather than the specific configuration of the exercises.
本研究分析了年轻人对不同循环抗阻训练结构的生理和力学反应。开展了一项描述性横断面研究，以评估四种不同的循环抗阻训练方案对30名有经验的年轻人的血乳酸、心率和反向运动跳跃（CMJ）力学变量的急性影响。训练课程在运动顺序（交替与分组）和训练量（最大重复次数与次最大重复次数）方面存在差异：A1（交替，最大重复次数）、G1（分组，最大重复次数）、A2（交替，次最大重复次数）和G2（分组，次最大重复次数）。每个方案都包括在有指导的器械上进行的上肢和下肢练习，并设有标准化的休息间隔。在每次训练前后评估CMJ的力学特性，在运动前、运动中及运动后测量乳酸浓度，并在所有训练过程中持续监测心率。结果显示，各组之间的CMJ高度没有显著差异；然而，在高训练量方案（A1和G1）中，与功率相关的变量下降幅度更大。在这些高训练量条件下，力量发展速率也受到更负面的影响。训练过程中的血乳酸水平在各组之间存在显著差异，特别是在高训练量和低训练量方案之间，尽管在训练结束时未观察到差异。在运动的第4分钟和第12分钟之间，心率有显著变化，这反映了训练量的影响而非运动顺序的影响。总之，训练量似乎是影响循环抗阻训练期间生理和力学反应的主要因素，而非练习的具体配置。
