Department of Health Sciences and Sports, Catholic University of San Antonio of Murcia, Murcia, Spain.
Int J Sports Med. 2012 Nov;33(11):909-16. doi: 10.1055/s-0032-1311586. Epub 2012 Jun 15.
The main purpose of this study was to determine the absolute reliability of conventional (H/Q(CONV)) and functional (H/Q(FUNC)) hamstring to quadriceps strength imbalance ratios calculated using peak torque values, 3 different joint angle-specific torque values (10°, 20° and 30° of knee flexion) and 4 different joint ROM-specific average torque values (0-10°, 11-20°, 21-30° and 0-30° of knee flexion) adopting a prone position in recreational athletes. A total of 50 recreational athletes completed the study. H/Q(CONV) and H/Q(FUNC) ratios were recorded at 3 different angular velocities (60, 180 and 240°/s) on 3 different occasions with a 72-96 h rest interval between consecutive testing sessions. Absolute reliability was examined through typical percentage error (CVTE), percentage change in the mean (CM) and intraclass correlations (ICC) as well as their respective confidence limits. H/Q(CONV) and H/Q(FUNC) ratios calculated using peak torque values showed moderate reliability values, with CM scores lower than 2.5%, CV(TE) values ranging from 16 to 20% and ICC values ranging from 0.3 to 0.7. However, poor absolute reliability scores were shown for H/Q(CONV) and H/Q(FUNC) ratios calculated using joint angle-specific torque values and joint ROM-specific average torque values, especially for H/Q(FUNC) ratios (CM: 1-23%; CV(TE): 22-94%; ICC: 0.1-0.7). Therefore, the present study suggests that the CV(TE) values reported for H/Q(CONV) and H/Q(FUNC) (≈18%) calculated using peak torque values may be sensitive enough to detect large changes usually observed after rehabilitation programmes but not acceptable to examine the effect of preventitive training programmes in healthy individuals. The clinical reliability of hamstring to quadriceps strength ratios calculated using joint angle-specific torque values and joint ROM-specific average torque values are questioned and should be re-evaluated in future research studies.
本研究的主要目的是确定在休闲运动员中采用俯卧位，使用峰值扭矩值、3 种不同关节角度特异性扭矩值（膝关节屈曲 10°、20°和 30°）和 4 种不同关节 ROM 特异性平均扭矩值（膝关节屈曲 0-10°、11-20°、21-30°和 0-30°）计算的常规（H/Q(CONV)) 和功能（H/Q(FUNC)) 腘绳肌与股四头肌力量失衡比的绝对可靠性。共有 50 名休闲运动员完成了这项研究。在 3 种不同角速度（60、180 和 240°/s）下，在 3 种不同的情况下记录 H/Q(CONV) 和 H/Q(FUNC) 比值，连续测试之间的休息间隔为 72-96 小时。通过典型百分比误差（CVTE）、均值变化百分比（CM）和组内相关系数（ICC）以及各自的置信限来检查绝对可靠性。使用峰值扭矩值计算的 H/Q(CONV) 和 H/Q(FUNC) 比值显示出中等可靠性值，CM 评分低于 2.5%，CVTE 值在 16%至 20%之间，ICC 值在 0.3 至 0.7 之间。然而，使用关节角度特异性扭矩值和关节 ROM 特异性平均扭矩值计算的 H/Q(CONV) 和 H/Q(FUNC) 比值显示出较差的绝对可靠性得分，尤其是 H/Q(FUNC) 比值（CM：1-23%；CVTE：22-94%；ICC：0.1-0.7）。因此，本研究表明，使用峰值扭矩值计算的 H/Q(CONV) 和 H/Q(FUNC)（≈18%）的 CVTE 值可能足够敏感，足以检测康复计划后通常观察到的大变化，但不能接受检查健康个体的预防训练计划的效果。使用关节角度特异性扭矩值和关节 ROM 特异性平均扭矩值计算的腘绳肌与股四头肌力量比值的临床可靠性受到质疑，应在未来的研究中重新评估。
