Accommodating resistance is more effective than free weight resistance to induce post-activation performance enhancement in squat jump performance after a short rest interval

IF 2.4 2区 医学 Q2 SPORT SCIENCES
Sebastian Masel, Marcin Maciejczyk
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引用次数: 0

Abstract

Background/objectives

Prior work regarding post-activation performance enhancement (PAPE) has shown that various resistance training methods and conditioning activities may induce a PAPE effect such as free weight resistance, accommodating resistance or isoinertial resistance. However, the accommodating resistance and other types of resistance have rarely been directly compared. Thus, the aim of this study was to compare the effects of two different conditioning activities (CA) - a trap bar deadlift with (FW + AR condition) or without (FW condition) accommodating resistance - on subsequent squat jump (SJ) performance after a short rest interval of 90s.

Methods

The study had a cross-over design and fifteen strength trained males (mean age: 22.9 ± 2.1 years; mean relative strength level 2.01 ± 0.27 kg/body mass) participated in one familiarization, two experimental and one control session (CNTR condition). Two CAs were implemented throughout the study - a single set of 3 repetitions of a trap bar deadlift at 80 % of 1RM using solely free weight resistance or with the addition of approximately 15 % of 1RM elastic band tension. The SJ measurements were performed at the baseline and 90s after CAs.

Results

The FW + AR condition significantly improved subsequent SJ performance (p < 0.05, effect size 0.34) whereas the FW and CNTR conditions were found to be ineffective to acutely enhance performance.

Conclusions

Our results suggest that the addition of accommodating resistance is superior to free weight resistance in order to acutely improve jump performance after a 90s rest interval. To observe the performance enhancement effect with solely free weight resistance it should be considered to introduce alteration in loading strategies or possibly lengthening the rest interval.

与自由重量阻力相比,适应性阻力能更有效地诱导在短暂休息间歇后提高深蹲跳性能
背景/目的有关活动后成绩提高(PAPE)的先前研究表明,各种阻力训练方法和调节活动都可能诱发 PAPE 效果,如自由重量阻力、适应性阻力或等惯性阻力。然而,迁就性阻力和其他类型的阻力很少被直接比较。因此,本研究旨在比较两种不同的调节活动(CA)--带(FW + AR 条件)或不带(FW 条件)容纳阻力的曳引杆负重--对 90 秒短暂休息间隔后的深蹲跳(SJ)成绩的影响。 研究采用交叉设计,15 名力量训练有素的男性(平均年龄:22.9 ± 2.1 岁;平均相对力量水平 2.01 ± 0.27 公斤/体重)参加了一次熟悉、两次实验和一次对照(CNTR 条件)。在整个研究过程中采用了两种CA--单组3次、以80%的1RM强度进行曳引杆负重,仅使用自由重量阻力或增加约15%的1RM弹力带张力。结果FW + AR 条件显著提高了随后的 SJ 成绩(p < 0.05,效应大小为 0.34),而 FW 和 CNTR 条件则无法有效提高成绩。要观察仅用自由重量阻力提高成绩的效果,应考虑改变负荷策略或延长休息间隔。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
5.10
自引率
3.60%
发文量
54
审稿时长
31 days
期刊介绍: The Journal of Exercise Science and Fitness is the official peer-reviewed journal of The Society of Chinese Scholars on Exercise Physiology and Fitness (SCSEPF), the Physical Fitness Association of Hong Kong, China (HKPFA), and the Hong Kong Association of Sports Medicine and Sports Science (HKASMSS). It is published twice a year, in June and December, by Elsevier. The Journal accepts original investigations, comprehensive reviews, case studies and short communications on current topics in exercise science, physical fitness and physical education.
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