The concept of iso-inertial assessment: Reproducibility analysis and descriptive data
The concept of iso-inertial assessment: Reproducibility analysis and descriptive data
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DOI：
10.3233/ies-2006-0221
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发表时间：
2006-01-01
影响因子：
0.7
通讯作者：
Crielaard, JM
中科院分区：
文献类型：
--
作者：
Jidovtseff, B;Croisier, JL;Crielaard, JM
本研究的目的是调查结果的再现性来自一个新的等惯性测力计在卧推（BP）和深蹲（SQ），并提供描述性数据的娱乐运动员。一个位置传感器和加速度计相结合，以评估速度和力量在自由举重练习。模拟运动与滑轮系统显示了良好的技术一致性的测力计。16名男性受试者参加了研究。等惯性测试包括尽可能快地提升四种不同的相对载荷（BP中为35、50、70、90% 1 RM，SQ中为45、60、75、90% 1 RM）。一周后重复测试。方差分析显示，会话或试验之间没有显着差异。再现性在速度方面比在功率方面更好，尽管在两个练习中它仍然相当好（变异系数[CV]从未超过10%），除了达到峰值功率参数的时间。描述性数据证实了BP和SQ的经典力-速度和力-功率关系。总之，本研究证明了BP和SQ等惯性练习中的可靠测量。监测力-速度和力-功率关系为力量训练监督提供了一种新颖的功能方法。
The purpose of this study was to investigate the reproducibility of findings derived from a new iso-inertial dynamometer during bench press (BP) and squat (SQ) and to provide descriptive data for recreational athletes. A position transducer and accelerometer were combined to assess velocity and power during free weight lifting exercises. Simulated movement with a pulley system revealed the excellent technical consistency of the dynamometer. Sixteen male subjects participated in the study. Iso-inertial tests consisted of lifting as fast as possible four different relative loads (35, 50, 70, 90% 1RM in BP and 45, 60, 75, 90% 1RM in SQ). The test was repeated one week later. Analysis of variance revealed no significant variation between sessions or trials. Reproducibility was better in velocity than in power, although it remained fairly good in both exercises (coefficients of variation [CV] never exceeding 10%) except for the time to peak power parameter. Descriptive data confirmed the classical force-velocity and force-power relationships for BP and SQ. In conclusion, this study demonstrated reliable measurements in BP and SQ iso-inertial exercises. Monitoring force-velocity and force-power relationships offers an original functional approach in strength training supervision.