PDF(Pubmed)
Abstract：
BACKGROUND: Post-activation potentiation performance (PAPE) is a physiological phenomenon that has been studied numerously but the researchers are still seeking for the optimal application methods. The accommodating resistance was found to be an effective training method to acutely enhance subsequent explosive performance. The purpose of this study was to evaluate the effects of performing a trap bar deadlift with accommodating resistance on squat jump (SJ) performance with different rest intervals (90, 120, 150s).
METHODS: The study had a cross-over design and fifteen strength-trained males (age 22.9 ± 2.1 years; body height 182 ± 6.5 cm; body mass: 80.4 ± 9.8 kg; body fat 15.8 ± 7.0%; BMI 24.1 ± 2.8; lean body mass 67.5 ± 8.8 kg) participated in one familiarization, three experimental and three control sessions within three weeks. The conditioning activity (CA) used in the study was a single set of 3 repetitions of a trap bar deadlift at 80% 1RM with approximately 15% 1RM of an elastic band. The SJ measurements were performed at the baseline and post-CA after 90 or 120 or 150s.
RESULTS: The 90s experimental protocol significantly improved (p < 0.05, effect size 0.34) acute SJ performance whereas 120 and 150 s experimental protocols did not significantly improve performance. The following tendency was observed - the longer the rest interval, the smaller the potentiation effect; p value for 90s (0.046), 120s (0.166), 150s (0.745).
CONCLUSIONS: A trap bar deadlift with accommodating resistance and 90s rest interval can be used to acutely enhance jump performance. A 90s rest interval was found to be optimal to enhance subsequent SJ performance, but the potential rest interval extension to 120s could also be taken by strength and conditioning coaches as the PAPE effect is highly individual. However, exceeding the rest interval to more than 120s may not be effective in optimising the PAPE effect.
METHODS: The study had a cross-over design and fifteen strength-trained males (age 22.9 ± 2.1 years; body height 182 ± 6.5 cm; body mass: 80.4 ± 9.8 kg; body fat 15.8 ± 7.0%; BMI 24.1 ± 2.8; lean body mass 67.5 ± 8.8 kg) participated in one familiarization, three experimental and three control sessions within three weeks. The conditioning activity (CA) used in the study was a single set of 3 repetitions of a trap bar deadlift at 80% 1RM with approximately 15% 1RM of an elastic band. The SJ measurements were performed at the baseline and post-CA after 90 or 120 or 150s.
RESULTS: The 90s experimental protocol significantly improved (p < 0.05, effect size 0.34) acute SJ performance whereas 120 and 150 s experimental protocols did not significantly improve performance. The following tendency was observed - the longer the rest interval, the smaller the potentiation effect; p value for 90s (0.046), 120s (0.166), 150s (0.745).
CONCLUSIONS: A trap bar deadlift with accommodating resistance and 90s rest interval can be used to acutely enhance jump performance. A 90s rest interval was found to be optimal to enhance subsequent SJ performance, but the potential rest interval extension to 120s could also be taken by strength and conditioning coaches as the PAPE effect is highly individual. However, exceeding the rest interval to more than 120s may not be effective in optimising the PAPE effect.
摘要：
背景：激活后增强性能（PAPE）是一种生理现象，已经进行了大量研究，但研究人员仍在寻求最佳的应用方法。适应性阻力被发现是一种有效的训练方法，可以急剧增强随后的爆发力。这项研究的目的是评估在不同的休息间隔（90、120、150s）下进行具有适应性阻力的陷阱杆死拉对下蹲跳跃（SJ）性能的影响。
方法：该研究进行了交叉设计，15名经过力量训练的男性（年龄22.9±2.1岁；身高182±6.5cm；体重：80.4±9.8kg；体脂15.8±7.0％；BMI24.1±2.8；瘦体重67.5±8.8kg）参加了一次熟悉，在三周内进行三次实验和三次控制。研究中使用的调节活动（CA）是在80％1RM的情况下使用大约15％1RM的弹性带进行的陷阱杆硬拉的单组3次重复。在90或120或150s后在基线和CA后进行SJ测量。
结果：90年代实验方案显着改善了（p<0.05，效应大小0.34）急性SJ性能，而120和150s实验方案并未显着改善性能。观察到以下趋势-休息间隔越长，增强效应越小；90s的p值(0.046)，120s(0.166),150秒（0.745）。
结论：具有调节阻力和90s休息间隔的陷阱杆死拉可用于急剧增强跳跃性能。发现90年代的休息间隔对于增强随后的SJ性能是最佳的，但是，由于PAPE效应是高度个性化的，因此力量和条件教练也可以将潜在的休息间隔延长至120s。然而,超过休息间隔120秒可能无法有效优化PAPE效果。
方法：该研究进行了交叉设计，15名经过力量训练的男性（年龄22.9±2.1岁；身高182±6.5cm；体重：80.4±9.8kg；体脂15.8±7.0％；BMI24.1±2.8；瘦体重67.5±8.8kg）参加了一次熟悉，在三周内进行三次实验和三次控制。研究中使用的调节活动（CA）是在80％1RM的情况下使用大约15％1RM的弹性带进行的陷阱杆硬拉的单组3次重复。在90或120或150s后在基线和CA后进行SJ测量。
结果：90年代实验方案显着改善了（p<0.05，效应大小0.34）急性SJ性能，而120和150s实验方案并未显着改善性能。观察到以下趋势-休息间隔越长，增强效应越小；90s的p值(0.046)，120s(0.166),150秒（0.745）。
结论：具有调节阻力和90s休息间隔的陷阱杆死拉可用于急剧增强跳跃性能。发现90年代的休息间隔对于增强随后的SJ性能是最佳的，但是，由于PAPE效应是高度个性化的，因此力量和条件教练也可以将潜在的休息间隔延长至120s。然而,超过休息间隔120秒可能无法有效优化PAPE效果。
