J Orthop Sports Phys Ther. 1984;6(3):190-7. doi: 10.2519/jospt.1984.6.3.190.
The purpose of this study was to determine the effects of knowledge of results, i.e., visual feedback from watching the torque curve on the Cybex II recorder, on knee extensor and flexor strength (peak torque in ft-lb), and fatigue (strength decrement) during reciprocal, isokinetic testing at speeds of 15O/sec (slow) and 300 degrees /sec (fast). Knowledge of results induced higher strength and fatigue values in both muscle groups during slow, but not fast, speed tests. The greater amounts of fatigue resulted from elevated initial strength levels at the beginning of the slow speed fatigue tests. The superior quality of the slow speed knowledge of results and longer times to utilize the visual feedback may explain the enhanced strength values. The effect of knowledge of results on strength levels decreased during the course of the slow speed fatigue tests. Results are discussed in terms of information processing and motivation theory. J Orthop Sports Phys Ther 1984;6(3):190-197.
本研究旨在确定结果知识（即通过观看 Cybex II 记录器上的扭矩曲线获得的视觉反馈）对膝关节伸肌和屈肌强度（英尺磅峰值扭矩）以及在 15O/秒（慢）和 300 度/秒（快）的等速测试中的疲劳（强度下降）的影响。在慢速但不是快速速度测试中，结果知识导致两组肌肉的力量和疲劳值更高。在慢速疲劳测试开始时初始强度水平升高导致更大的疲劳量。较慢速度的结果知识的更高质量和更长的时间来利用视觉反馈可能解释了增强的强度值。在慢速疲劳测试过程中，结果知识对强度水平的影响降低。结果根据信息处理和动机理论进行了讨论。J Orthop Sports Phys Ther 1984;6(3):190-197。
