Effect of experimental muscle pain on the acquisition and retention of locomotor adaptation: different motor strategies for a similar performance

Bouffard, Jason, Salomoni, Sauro Emerick, Mercier, Catherine, Tucker, Kylie J., Roy, Jean-Sebastien, van den Hoorn, Wolbert, Hodges, Paul W. and Bouyer, Laurent J. (2018) Effect of experimental muscle pain on the acquisition and retention of locomotor adaptation: different motor strategies for a similar performance. Journal of Neurophysiology, 119 5: 1647-1657. doi:10.1152/jn.00411.2017


Author Bouffard, Jason
Salomoni, Sauro Emerick
Mercier, Catherine
Tucker, Kylie J.
Roy, Jean-Sebastien
van den Hoorn, Wolbert
Hodges, Paul W.
Bouyer, Laurent J.
Title Effect of experimental muscle pain on the acquisition and retention of locomotor adaptation: different motor strategies for a similar performance
Journal name Journal of Neurophysiology   Check publisher's open access policy
ISSN 1522-1598
0022-3077
Publication date 2018-01-24
Year available 2018
Sub-type Article (original research)
DOI 10.1152/jn.00411.2017
Open Access Status DOI
Volume 119
Issue 5
Start page 1647
End page 1657
Total pages 36
Place of publication Bethesda, MD United States
Publisher American Physiological Society
Language eng
Subject 2800 Neuroscience
1314 Physiology
Abstract As individuals with musculoskeletal disorders often experience motor impairments, contemporary rehabilitation relies heavily on the use of motor learning principles. However, motor impairments are often associated with pain. While there is substantial evidence that muscle pain interferes with motor control, much less is known on its impact on motor learning, especially on locomotor learning. The objective of the present study was to assess the effects of muscle pain on locomotor learning.

Two groups (Pain and Control) of healthy participants performed a locomotor adaptation task (robotized ankle-foot orthosis perturbing ankle movements during swing) on two consecutive days. On Day 1 (acquisition), hypertonic saline was injected in the Tibialis Anterior (TA) muscle of the Pain group participants, while Control group participants were pain-free. All participants were pain-free on Day 2 (retention). Changes in movement errors caused by the perturbation were assessed as an indicator of motor performance. Detailed analysis of kinematic and electromyographic data provided information about motor strategies.

No between-group differences were observed on motor performance measured during the acquisition and retention phases. However, Pain group participants had a residual movement error later in the swing phase and smaller early TA activation than Control group participants, thereby suggesting a reduction in the use of anticipatory motor strategies to overcome the perturbation.

Muscle pain did not interfere with global motor performance during locomotor adaptation. The different motor strategies used in the presence of muscle pain may reflect a diminished ability to anticipate the consequences of a perturbation.
Keyword experimental pain
gait
motor learning
muscle pain
plasticity
Q-Index Code C1
Q-Index Status Provisional Code
Grant ID APP1091302
APP1102905
MOP-125869
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
School of Biomedical Sciences Publications
School of Health and Rehabilitation Sciences Publications
 
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Created: Wed, 31 Jan 2018, 12:13:47 EST