Brien Joey O, Browne Declan, Earls Des, Lodge Clare
HealthCore, Department of Science and Health, Institute of Technology Carlow, Carlow R93 V960, Ireland.
Biol Sport. 2022 Sep;39(3):499-503. doi: 10.5114/biolsport.2022.106159. Epub 2021 Jul 3.
The aim of this study was to investigate the effect of four different inertial loads (0.025, 0.050, 0.075, and 0.100 kg· m²) on concentric (CON) power, eccentric (ECC) power, and ECC overload in the flywheel Romanian deadlift (RDL). Fourteen recreationally trained males (27.9 ± 6.4 years, 90 ± 10.7 kg, 180.7 ± 5.5 cm) volunteered for the study. They had a minimum of two years of resistance training experience, although none had experience in flywheel inertia training (FIT). All participants performed the flywheel RDL on a flywheel device (kBox 3, Exxentric, AB TM, Bromma, Sweden). Each set was performed using different inertial loads, those being 0.025, 0.050, 0.075, and 0.100 kg·m². For CON, ECC power, and ECC overload, there was a significant difference (p < 0.001) between inertial loadings. In conclusion, results highlight that lower inertial load leads to higher peak CON and ECC power values, precisely 0.025 kg· m². Regarding ECC overload, medium to higher loads (0.050, 0.075, and 0.100 kg·m²) will lead to higher values.
本研究的目的是调查四种不同惯性负荷（0.025、0.050、0.075和0.100kg·m²）对飞轮罗马尼亚硬拉（RDL）中向心（CON）力量、离心（ECC）力量和ECC超负荷的影响。14名接受过休闲训练的男性（27.9±6.4岁，90±10.7kg，180.7±5.5cm）自愿参与本研究。他们至少有两年的阻力训练经验，尽管没有人有飞轮惯性训练（FIT）的经验。所有参与者在飞轮装置（kBox 3，Exxentric，AB TM，瑞典布罗玛）上进行飞轮RDL。每组使用不同的惯性负荷进行，即0.025、0.050、0.075和0.100kg·m²。对于CON、ECC力量和ECC超负荷，惯性负荷之间存在显著差异（p<0.001）。总之，结果表明较低的惯性负荷会导致更高的向心峰值和离心力量值，确切地说是0.025kg·m²。关于ECC超负荷，中等至较高负荷（0.050、0.075和0.100kg·m²）会导致更高的值。
