Beato Marco, de Keijzer Kevin L, Fleming Adam, Coates Alexander, La Spina Oscar, Coratella Giuseppe, McErlain-Naylor Stuart A
School of Health and Sports Sciences, University of Suffolk, Ipswich, UK.
Department of Biomedical Sciences for Health, University of Milan, Milan, Italy.
Sports Biomech. 2023 Nov;22(11):1514-1527. doi: 10.1080/14763141.2020.1810750. Epub 2020 Oct 28.
The present study investigated the post-activation performance enhancement (PAPE) of isokinetic quadriceps and hamstrings torque after flywheel (FW)-squat vs. FW-deadlift in comparison to a control condition. Fifteen male athletes were enrolled in this randomised, crossover study. Each protocol consisted of 3 sets of 6 repetitions, with an inertial load of 0.029 kgm. Isokinetic quadriceps (knee extension) and hamstrings (knee flexion) concentric peak torque (60º/s) and hamstring eccentric peak torque (-60º/s) were measured 5 min after experimental or control conditions. A significant condition (PAPE) effect was reported ( = 4.067, p = 0.008) for isokinetic hamstrings eccentric peak torque following FW-squat and FW-deadlift, but no significant differences were found for quadriceps and hamstrings concentric peak torques. The significant difference averaged 14 Nm between FW-squat vs. control (95% CI: 2, 28; = 0.75, ; p = 0.033), and 13 Nm between FW-deadlift vs. control (95% CI: 1, 25; = 0.68, ; p = 0.038). This study reported that both FW-squat and FW-deadlift exercises are equivalently capable of generating PAPE of isokinetic hamstrings eccentric torque. Practitioners may use these findings to inform strength and power development during complex training sessions consisting of flywheel-based exercises prior to a sport-specific task.
本研究调查了与对照条件相比，飞轮深蹲（FW-深蹲）和飞轮硬拉（FW-硬拉）后等速股四头肌和腘绳肌扭矩的激活后表现增强（PAPE）情况。15名男性运动员参与了这项随机交叉研究。每个方案包括3组，每组6次重复，惯性负荷为0.029 kgm。在实验或对照条件后5分钟测量等速股四头肌（膝关节伸展）和腘绳肌（膝关节屈曲）的向心峰值扭矩（60°/s）以及腘绳肌的离心峰值扭矩（-60°/s）。报告显示，FW-深蹲和FW-硬拉后等速腘绳肌离心峰值扭矩存在显著的条件（PAPE）效应（F = 4.067，p = 0.008），但股四头肌和腘绳肌的向心峰值扭矩未发现显著差异。FW-深蹲与对照之间的显著差异平均为14 Nm（95% CI：2，28；F = 0.75，η² = 0.22；p = 0.033），FW-硬拉与对照之间的显著差异平均为13 Nm（95% CI：1，25；F = 0.68，η² = 0.20；p = 0.038）。本研究报告称，FW-深蹲和FW-硬拉练习在产生等速腘绳肌离心扭矩的PAPE方面能力相当。从业者可利用这些发现，为在特定运动任务之前进行的包含飞轮练习的复杂训练课程中的力量和功率发展提供参考。
