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KMID : 1195020200160020017
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Archives of Orthopedic and Sports Physical Therapy
2020 Volume.16 No. 2 p.17 ~ p.24
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The Effect of Frequency of Summary Feedback on the Proprioception in Knee Extension of Healthy Subjects
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Yoon Jung-Gyu
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Abstract
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Purpose: This study investigated the effect of the frequency of summary feedback on proprioception duringknee extension in healthy subjects.
Methods: Forty-eight young adults volunteered to participate and were randomly assigned to one of four groups(1*summary, 5*summary, 10*summary, and control). The power and velocity errors for proprioception in kneeextension were measured using a PRIMUS RS system (BTE Tech., Hanover, USA). Multivariate analysis ofvariance (MANOVA) was used to determine the effect of the frequency of summary feedback on proprioceptionin knee extension of healthy participants. Scheffe post hoc tests were applied, and the level of significancewas set at α=0.05.
Results: In the acquisition phase to practice the effect, power, and velocity error scores in all summary groupswere significantly lower than those in the control group (p<0.05) but did not differ significantly between thesummary groups (p>0.05). In the retention phase to assess the learning effect, the power and velocity errorscores in all summary groups were also significantly lower than those in the control group (p <0.05), and thescore in the 5*summary group was significantly lower than those in the other summary groups (p<0.05).
Conclusion: 5*summary feedback was effective for motor learning while reducing the error of proprioception.
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KEYWORD
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Frequency, Summary feedback, Power error, Velocity error, Proprioception
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