Journal article
Neuromuscular Electrical Stimulation Primes Feedback Control During a Novel Single Leg Task
Journal of motor behavior, Vol.53(4), pp.409-418
05/14/2021
DOI: 10.1080/00222895.2020.1789052
PMCID: PMC8265163
PMID: 32633214
Abstract
FMRI studies support that neuromuscular electrical stimulation can modulate the excitability of the somatosensory cortex. We studied whether practice and electrical stimulation of the quadriceps would enhance learning during a weight-bearing task. 20 healthy individuals (10 male) and 8 control subjects participated in a 2-day study. Day 1 consisted of a pretest, a training session, and a post-test; day 2 consisted of a pretest, 2 bouts of electrical stimulation to the quadriceps muscles, and a post-test. The single limb squat task was performed at varying knee resistance and target velocities and a random unexpected perturbation was administered. Feedforward error was calculated during a 50 ms time window before the unexpected event. Feedback error was calculated during a 150 ms window after the unexpected event. Peak error score decreased by 2.98 degrees (p < 0.001) immediately following training. Error was improved by 1.78 degrees (p < 0.001) during the feedforward phase and 1.44 degrees (p < 0.001) during the feedback phase. All subjects plateaued after day 1; except for the electrical stimulation group that showed a decrease of 1.206 degrees during the perturbed cycles (p = 0.024). Electrical stimulation triggered additional learning, beyond practice, during the unexpected event at a latency associated with the transcortical reflex.
Details
- Title: Subtitle
- Neuromuscular Electrical Stimulation Primes Feedback Control During a Novel Single Leg Task
- Creators
- Michael Petrie - Roy J. and Lucille A. Carver College of MedicineKristin Johnson - Roy J. and Lucille A. Carver College of MedicinePatrick McCue - Roy J. and Lucille A. Carver College of MedicineRichard K. Shields - Roy J. and Lucille A. Carver College of Medicine
- Resource Type
- Journal article
- Publication Details
- Journal of motor behavior, Vol.53(4), pp.409-418
- DOI
- 10.1080/00222895.2020.1789052
- PMID
- 32633214
- PMCID
- PMC8265163
- NLM abbreviation
- J Mot Behav
- ISSN
- 0022-2895
- eISSN
- 1940-1027
- Publisher
- Taylor & Francis
- Number of pages
- 10
- Grant note
- UL1TR002537 / NIH; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA R01HD084645; R01 HD082109 / National Center for Medical Rehabilitation Research
- Language
- English
- Date published
- 05/14/2021
- Academic Unit
- Orthopedics and Rehabilitation; Physical Therapy and Rehabilitation Science; Injury Prevention Research Center
- Record Identifier
- 9984295055302771
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