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2 分钟和 3 分钟组间间歇对最大牵张技术和力量维持的影响比较。

Comparison of 2- and 3-Minute Inter-Repetition Rest Periods on Maximal Jerk Technique and Power Maintenance.

机构信息

a Otto-von-Guericke-University Magdeburg.

b Sfax University.

出版信息

Res Q Exerc Sport. 2019 Sep;90(3):287-296. doi: 10.1080/02701367.2019.1594664. Epub 2019 Apr 16.

Abstract

: The aim of this study was to examine the effect of 3- vs. 2-minute inter maximal-repetition rest period (IMRRP) on maintaining jerk technical efficiency and power production during two successive maximal repetitions of Clean & Jerk (C&J). : In a randomized, within subject, repeated measures design, nine elite-weightlifters (age: 24.4 ± 3.6 years, body mass: 77.2 ± 7.1 kg, height 176.0 ± 6.4 cm and 1RM C&J: 170.0 ± 5.0 kg) performed 2-separate testing sessions using 2 (IMRRP-2) and 3 (IMRRP-3) -minute IMRRP, while barbell kinematics and kinetics and joint kinematics were recorded. : Statistical analysis showed that one minute longer IMRRP enhanced the maintenance of optimal jerk technique evidenced by reducing declines in peak vertical barbell displacement (2.74%; = .03), peak barbell velocity (2.89%; = .03), and peak knee (1.61%; = .03) and hip extensions (1.59%; = .03) during the drive phase of the jerk. Additionally, IMRRP-3 led to maintaining optimal lifting strategy by reducing the increase in horizontal displacement during the descending (3.85%; = .04) and ascending (5.42%; = .02) phases. Increasing IMRRP from 2min to 3min was also shown to enhance kinetic variables evidenced by prompting higher peak vGRF (2.01%; = .04) and power (2.55%; = .04). : To better identify an athlete's maximal jerk technique and power maintenance, the results of this study suggest 3min as more appropriate IMRRP during successive C&J at 100% 1RM.

摘要

: 本研究旨在检验 3 分钟与 2 分钟最大重复休息期(IMRRP)对连续两次最大重复清洁与挺举(C&J)中急停技术效率和功率输出的维持效果。 : 在一项随机、受试者内、重复测量设计中,9 名精英举重运动员(年龄:24.4±3.6 岁,体重:77.2±7.1 公斤,身高 176.0±6.4 厘米,1RM C&J:170.0±5.0 公斤)使用 2 分钟(IMRRP-2)和 3 分钟(IMRRP-3)的 IMRRP 进行了 2 次单独的测试,同时记录了杠铃运动学和动力学以及关节运动学。 : 统计分析表明,IMRRP 延长 1 分钟可通过减少急停驱动阶段的峰值垂直杠铃位移(2.74%; =.03)、峰值杠铃速度(2.89%; =.03)、峰值膝(1.61%; =.03)和髋伸(1.59%; =.03)的下降,从而提高最佳急停技术的维持。此外,IMRRP-3 通过减少下降(3.85%; =.04)和上升(5.42%; =.02)阶段的水平位移增加,维持了最佳的举重策略。将 IMRRP 从 2 分钟增加到 3 分钟,也被证明可以提高动力学变量,表现为更高的峰值 vGRF(2.01%; =.04)和功率(2.55%; =.04)。 : 为了更好地识别运动员的最大急停技术和力量维持能力,本研究结果表明,在 100% 1RM 连续进行 C&J 时,3 分钟的 IMRRP 更为合适。

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