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Optimizing Feedback Frequency in Motor Learning: Self-Controlled and Moderate Frequency KR Enhance Skill Acquisition.

Edward P Hebert1, Cheryl Coker2

  • 1Department of Kinesiology and Health Studies, Southeastern Louisiana University, Hammond, United States.

Perceptual and Motor Skills
|August 2, 2021
PubMed
Summary

Self-controlled knowledge of results (SCKR) and moderate feedback frequency (50%) significantly improved motor skill learning. This suggests an inverted U-shaped relationship between feedback frequency and skill acquisition, highlighting the benefits of learner control and optimal feedback timing.

Keywords:
feedbackknowledge of resultsself-controlself-regulationskill acquisition

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Area of Science:

  • Motor Learning
  • Sports Science
  • Motor Control

Background:

  • Knowledge of Results (KR) is crucial for motor skill acquisition.
  • The optimal frequency and control of KR delivery remain areas of investigation.
  • Previous research suggests feedback timing impacts learning efficacy.

Purpose of the Study:

  • To compare self-controlled knowledge of results (SCKR) with fixed KR schedules.
  • To investigate the effects of varying KR relative frequencies (25%, 50%, 100%) on motor skill learning.
  • To determine the impact of feedback control on learning outcomes in a motor task.

Main Methods:

  • Participants performed soccer overhead throws over 50 acquisition trials.
  • KR was delivered based on assigned schedules: SCKR, 25%, 50%, or 100% frequency.
  • A retention test without KR assessed motor skill learning.

Main Results:

  • Highest retention scores were observed in the SCKR and 50% KR frequency groups.
  • These groups demonstrated comparable absolute KR frequency and feedback distribution.
  • Both self-controlled feedback and moderate KR frequency positively influenced learning.

Conclusions:

  • Self-controlled knowledge of results enhances motor skill learning.
  • Moderate KR frequency (50%) is more effective than high or low frequencies.
  • An inverted U-shaped effect of feedback frequency on skill acquisition is supported.