飞轮惯性训练中体重、最大相对强度和功率变量的关系

Joey O. Brien, Declan Browne, Des Earls, C. Lodge
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摘要

本研究的主要目的是检验罗马尼亚飞轮升程中体重、绝对和相对强度以及功率变量之间的关系。第二个目的是评估一种新的功率评估协议的日间可靠性,该协议以前用于确定在飞轮惯性训练中产生最大功率输出的惯性负载。10名身体活跃的男性参与了这项研究。参与者有一些飞轮装置的经验,但所有人都有至少24个月的传统阻力训练经验。第一次测试包括三组,每组10次,每组惯性载荷不同(0.050、0.075和1.00 kg·m2)。每组的第一次和第二次重复都被用来建立动力,并被排除在数据分析之外。每个试验中使用的惯性载荷顺序对所有参与者进行了标准化:首先是0.050 kg·m2,其次是0.075 kg·m2和最后是0.100 kg·m2。第二次测试会话遵循与第一次相同的程序。在相关性分析中,任何变量之间都没有发现统计学上显著的影响(p<0.05)。1次重复最大罗马尼亚飞轮升程与峰值同心功率、相对强度以及峰值同心和偏心峰值功率之间存在很大的正相关性。体重和相对力量与偏心过载百分比呈中度负相关,而1RM与偏心力峰值呈中度正相关。同心功率和偏心功率都表现出良好的可靠性,而%偏心过载的可靠性根据惯性负载的不同从差到优不等。总之,本研究表明,评估最大功率输出的协议对ECC和CON功率都具有良好的可靠性,可用于未来的飞轮训练。结果还表明,体重、最大力量和相对力量与力量变量没有很大关系。飞轮训练需要一种个性化的方法。
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The Relationship between Bodyweight, Maximum and Relative Strength, and Power Variables during Flywheel Inertial Training
The main aim of this study was to examine the relationship between body weight, absolute and relative strength and power variables in a flywheel Romanian deadlift. A secondary aim was to assess the inter-day reliability of a novel power assessment protocol previously used to determine the inertial load that produced the maximum power output in Flywheel Inertia Training. Ten physically active males took part in this study. Participants had some experience with flywheel devices, but all had a minimum of 24 months of traditional resistance training experience. The first testing session consisted of three sets of 10 repetitions with a different inertial load for each set (0.050, 0.075, and 1.00 kg·m2). Each set’s first and second repetitions were used to build momentum and were excluded from data analysis. The order of inertial load used in each trial was standardized for all participants: first, 0.050 kg·m2, second, 0.075 kg·m2, and last, 0.100 kg·m2. The secondary testing session followed the same procedure as the first. No statistically significant (p < 0.05) effect was found between any of the variables in the correlation analysis. There were large positive correlations between the 1 repetition max flywheel Romanian deadlift and peak concentric power, relative strength, and peak concentric and eccentric peak powers. Both body weight and relative strength showed moderate negative correlations with % eccentric overload, whereas moderate positive correlations were observed between 1RM and peak eccentric power. Both concentric power and eccentric power showed excellent reliability, while the reliability for % eccentric overload ranged from poor to excellent depending on the inertial load. In conclusion, this study shows that a protocol to assess the maximum power output has excellent reliability for both ECC and CON power and may be used in future flywheel training. The results also showed that body weight, maximum strength, and relative strength were not largely related to power variables. An individualized approach to flywheel training is required.
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