Sharma Dhara A, Chevidikunnan Mohamed Faisal, Khan Fayaz Rahman, Gaowgzeh Riziq Allah
Ahmedabad Institute of Medical Sciences, India.
Department of Physical Therapy, Faculty of Applied Medical Sciences, King Abdulaziz University, Saudi Arabia.
J Phys Ther Sci. 2016 May;28(5):1482-6. doi: 10.1589/jpts.28.1482. Epub 2016 May 31.
[Purpose] The acquisition of motor skills are fundamental to human life. There is a lack of research on whether knowledge of performance or knowledge of result as augmented feedback is more effective. The objective of this study was to compare the effectiveness of knowledge of result and knowledge of performance in the learning of a skilled motor activity by healthy young adults. [Subjects and Methods] A total of thirty healthy young adult males and females without any neurological or musculoskeletal impairment, between the age of 18-30 years were the subjects of the study. They were randomly allocated to 2 groups: group 1 was given knowledge of result as feedback, and knowledge of performance was given as feedback to group 2. Both the groups practiced the task of throwing a soft spongy ball for 6 days per week for 4 weeks, with 40 trials each day. The outcome measure used was the distance of the throw. [Results] The results were analyzed using the t-test. The mean distances thrown by both the groups showed highly significant improvements and throwing distance of group 2 showed better improvement than that of group 1. [Conclusion] Both types of augmented feedback were effective at improving skilled motor activity, but the knowledge of performance group showed better improvement than the knowledge of result group.
[目的] 运动技能的习得对人类生活至关重要。关于作为增强反馈的动作表现知识或结果知识哪种更有效，目前缺乏相关研究。本研究的目的是比较结果知识和动作表现知识在健康年轻成年人学习一项熟练运动活动中的有效性。[对象与方法] 本研究的对象为30名年龄在18至30岁之间、无任何神经或肌肉骨骼损伤的健康年轻成年男性和女性。他们被随机分为两组：第1组给予结果知识作为反馈，第2组给予动作表现知识作为反馈。两组均每周练习投掷软海绵球任务6天，共进行4周，每天进行40次试验。所使用的结果指标是投掷距离。[结果] 采用t检验对结果进行分析。两组的平均投掷距离均显示出高度显著的改善，且第2组的投掷距离改善比第1组更好。[结论] 两种类型的增强反馈在改善熟练运动活动方面均有效，但动作表现知识组的改善比结果知识组更好。
