Abstract：
(1) Purpose: This study aimed to explore the time duration of post-activation performance enhancement (PAPE) in elite male sprinters with different strength levels. (2) Methods: Thirteen elite male sprinters were divided into a strong group (relative strength: 1RM squat normalized by body mass of ≥2.5; n = 6) and a weak group (relative strength of <2.5; n = 7). All sprinters performed one static squat jump (SSJ) at baseline and 15 s, 3 min, 6 min, 9 min, and 12 min following an exercise protocol including three reps of a 90% 1RM back squat. Two force plates were used to determine the vertical jump height, the impulse output, and the power output for all SSJs. (3) Results: Significant improvements in vertical jump height and peak impulse were observed (p < 0.05) at 3, 6, and 9 min, without significant between-group differences. The peak power had a significant increase in 3 min (p < 0.01) and 6 min (p < 0.05), with also no significant difference between-group differences. Moreover, the stronger subjects induced a greater PAPE effect than the weaker counterparts at 3, 6, and 9 min after the intervention. The maximal benefit following the intervention occurred at 6 min and 3 min after the intervention in the stronger and weaker subjects, respectively. (4) Conclusions: The findings indicated that three reps of a 90% 1RM back squat augmented the subsequent explosive movement (SSJ) for 3−9 min in elite male sprinters, especially in stronger sprinters.
摘要：
（1）目的：本研究旨在探讨不同力量水平的优秀男子短跑运动员激活后表现增强（PAPE）的持续时间。（2）方法：将13名优秀男子短跑运动员分为强组（相对强度：1RM深蹲，体重≥2.5；n=6）和弱组（相对强度为2.5；n=7）。所有短跑运动员在基线和15秒时进行了一次静态深蹲跳跃（SSJ），3分钟,6分钟,9分钟,运动方案后12分钟，包括三次90%1RM后下蹲。使用两个力板来确定垂直跳跃高度，脉冲输出，和所有SSJ的功率输出。（3）结果：在3、6和9分钟观察到垂直跳跃高度和峰值脉冲的显着改善（p＆lt;0.05），没有显著的组间差异。峰值功率在3分钟(p<0.01)和6分钟(p<0.05)有显著增加,组间差异也无显著性差异。此外，在干预后3、6和9分钟，更强的受试者比较弱的受试者诱导更大的PAPE效应。在较强和较弱的受试者中，干预后的最大益处发生在干预后6分钟和3分钟。分别。（4）结论：研究结果表明，在精英男子短跑运动员中，90％1RM后下蹲的三个代表增加了随后的爆发力（SSJ）3-9分钟，尤其是在更强壮的短跑运动员中。
