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. 2019 Aug;31(8):687-691.
doi: 10.1589/jpts.31.687. Epub 2019 Aug 9.

Feedback protocol of 'fading knowledge of results' is effective for prolonging motor learning retention

Yoichiro Aoyagi  1 , Eri Ohnishi  2 , Yoshinori Yamamoto  2 , Naoki Kado  3 , Toshiaki Suzuki  4 , Hitoshi Ohnishi  5 , Nozomi Hokimoto  6 , Naomi Fukaya  7
Affiliations

Feedback protocol of 'fading knowledge of results' is effective for prolonging motor learning retention

Yoichiro Aoyagi et al. J Phys Ther Sci. 2019 Aug.

Abstract

[Purpose] "Knowledge of results" (KR) is information about the success of an action relative to a goal. A reduced frequency of "knowledge of results" reportedly promotes motor learning more than a high frequency. However, the effect of gradually diminishing or increasing "knowledge of results" pattern has been rarely studied and is controversial. We investigated the effectiveness of diminishing "knowledge of results" pattern in motor learning. [Participants and Methods] Forty-six healthy adults were randomly assigned to either the 100% KR, 50% KR, or faded KR group. Participants were tasked with exerting 60% of their maximum voluntary contraction of their left shoulder flexion muscle in an isometric exercise. Participants practiced the task 20 times a day for 4 days. A pretest and posttest were conducted before and immediately after the acquisition, respectively. Retention tests were conducted 1 day, 1 week, and 2 weeks after the acquisition. [Results] The absolute error was significantly reduced in the posttest in the faded KR and 50% KR cohorts. However, there was no significant difference in the 100% KR group. In the faded KR subjects, the improvement effect was observed up to 1 week following acquisition. [Conclusion] Faded "knowledge of results" productively prolongs the effect of motor learning.

Keywords: Faded knowledge of results; Feedback; Motor learning.

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Figures

Fig. 1.
Fig. 1.
The flow of the experiment.
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References

    1. Wulf G, Schmidt RA: The learning of generalized motor programs: Reducing the relative frequency of knowledge of results enhances memory. J Exp Psychol Learn Mem Cogn, 1989, 15: 748–757.
    1. Winstein CJ, Schmidt RA: Reduced frequency of knowledge of results enhances motor skill learning. J Exp Psychol Learn Mem Cogn, 1990, 16: 677–691.
    1. Nicholson DE, Schmidt RA: Scheduling information feedback to enhance training effectiveness. Proceedings of the Human Factors Society 35th Annual Meeting, 1991: 1400–1403.
    1. Ishikura T: Reduced relative frequency of knowledge of results without visual feedback in learning a golf-putting task. Percept Mot Skills, 2008, 106: 225–233. - PubMed
    1. Hemayattalab R, Rostami LR: Effects of frequency of feedback on the learning of motor skill in individuals with cerebral palsy. Res Dev Disabil, 2010, 31: 212–217. - PubMed