This study aimed to analyze the chronic effect of high cognitive effort immediately before resistance exercise sessions on neuromuscular performance in untrained male adults. We used a mixed experimental design, with the group as between‐participants factor and time as within‐participants factor. Thirty‐four participants were randomly assigned to two parallel groups: high cognitive effort (n = 17) and control (n = 17). Subjects in the control group were seated for 30 min before the resistance exercise sessions, while the high cognitive effort group completed incongruent trials of the Stroop task until subjective mental fatigue was present immediately before resistance exercise sessions. Participants attended 45 sessions over 15 weeks, consisting of three familiarizations, three baseline evaluations, 36 velocity‐based training sessions, and three postexperiment evaluation sessions. Rate of force development (RFD) during the isometric mid‐thigh pull, half back‐squat 1‐RM, and countermovement jump (CMJ) were measured before and after the 12‐week intervention. A significant group × time interaction effect was found for the average RFD at 0–250 ms (p < 0.05), with greater improvements for the control group than for the high cognitive effort group. There was no group × time interaction for half back‐squat 1‐RM (p > 0.05). Also, there was no group × time interaction for CMJ (p > 0.05). In conclusion, repeated high cognitive effort immediately prior to resistance exercise sessions is a phenomenon that can induce greater early velocity loss and, consequently, impairs the improvements in RFD. However, this did not inhibit the increased performance for explosive strength and CMJ in male untrained adults. High cognitive effort before resistance exercise sessions should be avoided.

中文翻译：

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在基于速度的训练课程之前的高认知努力会降低未经训练的男性成年人的力量发展率，但不会降低最大力量增益


本研究旨在分析抗阻训练前的高认知努力对未经训练的成年男性神经肌肉表现的长期影响。我们使用了混合实验设计，以组作为参与者之间的因素，以时间作为参与者内的因素。 34 名参与者被随机分配到两个平行组：高认知努力组（n = 17）和对照组（n = 17）。对照组的受试者在抗阻运动前静坐 30 分钟，而高认知努力组则完成斯特鲁普任务的不一致试验，直到在抗阻运动前立即出现主观精神疲劳。参与者在 15 周内参加了 45 场课程，包括 3 场熟悉课程、3 场基线评估、36 场基于速度的培训课程和 3 场实验后评估课程。在 12 周干预前后测量大腿中部等长拉、半后蹲 1-RM 和反向运动跳跃 (CMJ) 期间的力量发展率 (RFD)。在 0–250 ms 的平均 RFD 中发现了显着的组 × 时间交互效应 (p < 0.05)，对照组的改善程度高于高认知努力组。半后蹲 1-RM 没有组 × 时间交互作用 (p > 0.05)。此外，CMJ 没有组 × 时间交互作用 (p > 0.05)。总之，在抗阻训练之前进行重复的高认知努力是一种可能导致早期速度损失更大的现象，从而损害 RFD 的改善。然而，这并没有抑制未经训练的男性成年人爆发力和 CMJ 表现的提高。 应避免在抗阻训练前进行高强度的认知活动。