Differences in skill level influence the effects of visual feedback on motor learning.

Area of Science:

• Motor learning
• Biomechanics
• Human movement science

Background:

• The influence of visual feedback on motor skill acquisition is well-documented.
• However, whether learner skill level moderates the effectiveness of different visual feedback types remains unclear.

Purpose of the Study:

• To investigate if learner skill level affects the efficacy of visual feedback during motor learning.
• To determine if concurrent or terminal visual feedback, at varying percentages, differentially impacts learning based on participant expertise.

Main Methods:

• Sixty-four participants engaged in a lower limb load adjustment task.
• They were assigned to one of four visual feedback conditions: concurrent-100%, concurrent-50%, terminal-100%, or terminal-50%.
• Participants completed pretest, practice, and retention tests, with skill level assessed post-practice.

Main Results:

• Low-skilled participants utilizing concurrent visual feedback demonstrated significant improvements (reduced root mean square error) from pretest to retention.
• High-skilled participants did not show similar significant learning gains across feedback conditions.
• The effectiveness of visual feedback varied between low- and high-skilled learners.

Conclusions:

• Learner skill level is a critical factor influencing the effectiveness of visual feedback in motor learning.
• Concurrent visual feedback appears particularly beneficial for enhancing motor learning in novice or low-skilled individuals for this specific task.