Effects of short-term arm immobilization on motor skill acquisition

Learning to sequence movements is necessary for skillful interaction with the environment. Neuroplasticity, particularly long-term potentiation (LTP), within sensorimotor networks underlies the acquisition of motor skill. Short-term immobilization of the arm, even less than 12 hours, can reduce cort...

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Main Authors: Erin M. King, Lauren L. Edwards, Michael R. Borich
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9565666/?tool=EBI
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author Erin M. King
Lauren L. Edwards
Michael R. Borich
author_facet Erin M. King
Lauren L. Edwards
Michael R. Borich
author_sort Erin M. King
collection DOAJ
description Learning to sequence movements is necessary for skillful interaction with the environment. Neuroplasticity, particularly long-term potentiation (LTP), within sensorimotor networks underlies the acquisition of motor skill. Short-term immobilization of the arm, even less than 12 hours, can reduce corticospinal excitability and increase the capacity for LTP-like plasticity within the contralateral primary motor cortex. However, it is still unclear whether short-term immobilization influences motor skill acquisition. The current study aimed to evaluate the effect of short-term arm immobilization on implicit, sequence-specific motor skill acquisition using a modified Serial Reaction Time Task (SRTT). Twenty young, neurotypical adults underwent a single SRTT training session after six hours of immobilization of the non-dominant arm or an equivalent period of no immobilization. Our results demonstrated that participants improved SRTT performance overall after training, but there was no evidence of an effect of immobilization prior to task training on performance improvement. Further, improvements on the SRTT were not sequence-specific. Taken together, motor skill acquisition for sequential, individuated finger movements improved following training but the effect of six hours of immobilization was difficult to discern.
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spelling doaj.art-3d119de327fc4d199dcb610b28dbb6e52022-12-22T04:06:43ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-011710Effects of short-term arm immobilization on motor skill acquisitionErin M. KingLauren L. EdwardsMichael R. BorichLearning to sequence movements is necessary for skillful interaction with the environment. Neuroplasticity, particularly long-term potentiation (LTP), within sensorimotor networks underlies the acquisition of motor skill. Short-term immobilization of the arm, even less than 12 hours, can reduce corticospinal excitability and increase the capacity for LTP-like plasticity within the contralateral primary motor cortex. However, it is still unclear whether short-term immobilization influences motor skill acquisition. The current study aimed to evaluate the effect of short-term arm immobilization on implicit, sequence-specific motor skill acquisition using a modified Serial Reaction Time Task (SRTT). Twenty young, neurotypical adults underwent a single SRTT training session after six hours of immobilization of the non-dominant arm or an equivalent period of no immobilization. Our results demonstrated that participants improved SRTT performance overall after training, but there was no evidence of an effect of immobilization prior to task training on performance improvement. Further, improvements on the SRTT were not sequence-specific. Taken together, motor skill acquisition for sequential, individuated finger movements improved following training but the effect of six hours of immobilization was difficult to discern.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9565666/?tool=EBI
spellingShingle Erin M. King
Lauren L. Edwards
Michael R. Borich
Effects of short-term arm immobilization on motor skill acquisition
PLoS ONE
title Effects of short-term arm immobilization on motor skill acquisition
title_full Effects of short-term arm immobilization on motor skill acquisition
title_fullStr Effects of short-term arm immobilization on motor skill acquisition
title_full_unstemmed Effects of short-term arm immobilization on motor skill acquisition
title_short Effects of short-term arm immobilization on motor skill acquisition
title_sort effects of short term arm immobilization on motor skill acquisition
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9565666/?tool=EBI
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