Goh Hui-Ting, Stewart Jill C, Becker Kevin, Hung Cheng-Ju
School of Physical Therapy, Texas Woman's University, Dallas, Texas.
Physical Therapy Program, Department of Exercise Science, University of South Carolina, Columbia, South Carolina.
J Mot Behav. 2022;54(1):14-26. doi: 10.1080/00222895.2021.1871877. Epub 2021 Jan 19.
Perceived effort for goal-directed reaching may be impacted by the level of self-reported fatigue, however, the relationship between self-reported fatigue and perceived effort has not been examined. We examined how perceived effort changed under varied reach conditions and the relationship between fatigue, perceived effort and reach performance. Twenty-three young adults performed reach actions toward 9 different targets on a digitizing tablet. Perceived effort was measured using the Borg Rate of Perceived Exertion and Paas Mental Effort Rating Scale. Self-reported fatigue was quantified using the Fatigue Scales for Motor and Cognitive Functions. As reach conditions became more difficult, perceived effort increased significantly. Further, individuals who reported greater fatigue also reported greater perceived effort and showed greater endpoint error during reaching.
然而，目标导向性伸手动作的主观用力程度可能会受到自我报告的疲劳程度的影响，而自我报告的疲劳与主观用力程度之间的关系尚未得到研究。我们研究了在不同的伸手条件下主观用力程度是如何变化的，以及疲劳、主观用力程度和伸手动作表现之间的关系。23名年轻人在数字化平板电脑上对9个不同目标进行伸手动作。主观用力程度通过伯格主观用力感觉等级量表和帕阿斯脑力负荷评定量表进行测量。自我报告的疲劳程度使用运动和认知功能疲劳量表进行量化。随着伸手条件变得更加困难，主观用力程度显著增加。此外，报告疲劳程度较高的个体也报告了更高的主观用力程度，并且在伸手过程中表现出更大的终点误差。
