Effects of Limb-Specific Fatigue on Motor Learning during an Upper Extremity Proprioceptive Task
Year: 2019
Type: article
Study design: Clinical Trial
Abstract: Motor controlAcquisition Retention Motor skills Background: The effects of limb-specific fatigue on motor skill acquisition and retention are not clear.Objective: To investigate the impact of limb-specific fatigue on acquisition and retention of an upper extremity proprioceptive task.Methods: Twenty-two right-handed participants were randomly and equally assigned to either fatigued or non-fatigued protocols.Acquisition phase for the upper extremity task consisted of 5 blocks each with 12 trials.After 48 hours, all participants performed 1 block retention test (12 trials) with the left arm followed by 1 block transfer test (12 trials) with the right arm.Performance for each block was analyzed using a one-way analysis of variance (ANOVA).Performance differences between groups for acquisition was analyzed using a 2 x 5 (group x block) ANOVA with repeated measures on the blocks.The performance on retention-transfer was analyzed by separate ANOVAs.Statistical significance set at p<0.05.Results: The fatigued condition displayed significantly more E than the nonfatigue group (p<0.05).During retention and transfer, the fatigue group again displayed higher E compared to the non-fatigued group (p<0.05). Conclusion:The results of this study support that limb-specific fatigue may produce performance deficits during acquisition and interfere with motor skill retention.
Authors: Nicholas Siekirk, Qin Lai, Bradley Kendall
Language: English
Topic: Motor Control and Adaptation
Subfield: Cognitive Neuroscience
Field: Neuroscience
Domain: Life Sciences
Open Access status: hybrid
OpenAlex ID: W2912380452