CORTICAL ACTIVITY OF THE SENSORIMOTOR SYSTEM IN PARTICIPANTS WITH CHRONIC ANKLE INSTABILITY

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Burcal, C. (2017). CORTICAL ACTIVITY OF THE SENSORIMOTOR SYSTEM IN PARTICIPANTS WITH CHRONIC ANKLE INSTABILITY. Unc Charlotte Electronic Theses And Dissertations.
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Abstract

Patients with chronic ankle instability (CAI) exhibit a wide variety of sensorimotor deficits. These include impairments in feed-forward sensorimotor control (i.e. motor planning) as well as feed-back sensorimotor control, which pertains to refining ongoing movements. Researchers have recently begun to investigate the underlying cause of these impairments, identifying a decreased level of excitability in the primary motor cortex. However, it remains unclear if these constraints reflect large scale changes in sensorimotor control, and if they can be modified through therapeutic intervention. Therefore, our aim was to determine if impairments in feed-forward and feed-back sensorimotor control could be established in CAI patients using electroencephalography (EEG), and if these are improved through balance training. In Chapter 3, we compare EEG-derived measures of feed-forward and feed-back sensorimotor control between CAI patients and matched controls during a voluntary leaning task. In chapter 4, we assess feed-forward cortical activity during a dual-to-single-limb transition (DSLT), a task in which CAI patients have altered neuromuscular control. In chapter 5, we assess whether or not completing 4-weeks of an established balance training program can improve cortical measures of sensorimotor function in these patients. Along with traditional measures of balance, we assessed feed-forward cortical activity during a DSLT task before and after balance training. We did not identify any differences in EEG measures between CAI patients and uninjured controls during either task. Similarly, balance training did not result in differences in feed-forward activity, however links were established between balance improvements (i.e. feed-back sensorimotor control) and feed-forward cortical activity.

Details
Author

Burcal, Christopher

Title

CORTICAL ACTIVITY OF THE SENSORIMOTOR SYSTEM IN PARTICIPANTS WITH CHRONIC ANKLE INSTABILITY

Physical Description

1 online resource (205 pages) : PDF

Date

2017

Degree Granting Institution

University of North Carolina at Charlotte

Abstract

Patients with chronic ankle instability (CAI) exhibit a wide variety of sensorimotor deficits. These include impairments in feed-forward sensorimotor control (i.e. motor planning) as well as feed-back sensorimotor control, which pertains to refining ongoing movements. Researchers have recently begun to investigate the underlying cause of these impairments, identifying a decreased level of excitability in the primary motor cortex. However, it remains unclear if these constraints reflect large scale changes in sensorimotor control, and if they can be modified through therapeutic intervention. Therefore, our aim was to determine if impairments in feed-forward and feed-back sensorimotor control could be established in CAI patients using electroencephalography (EEG), and if these are improved through balance training. In Chapter 3, we compare EEG-derived measures of feed-forward and feed-back sensorimotor control between CAI patients and matched controls during a voluntary leaning task. In chapter 4, we assess feed-forward cortical activity during a dual-to-single-limb transition (DSLT), a task in which CAI patients have altered neuromuscular control. In chapter 5, we assess whether or not completing 4-weeks of an established balance training program can improve cortical measures of sensorimotor function in these patients. Along with traditional measures of balance, we assessed feed-forward cortical activity during a DSLT task before and after balance training. We did not identify any differences in EEG measures between CAI patients and uninjured controls during either task. Similarly, balance training did not result in differences in feed-forward activity, however links were established between balance improvements (i.e. feed-back sensorimotor control) and feed-forward cortical activity.

Genre

doctoral dissertations

Subjects--Topics

Biology
Kinesiology
Neurosciences

Degree

Ph.D.

Subject Area

Biology

Advisor(s)

Wikstrom, Erik
Hubbard-Turner, Tricia

Committee Members

Thomas Fenwick, Abbey
Bost, Kenneth
Clemens, Mark
Dreau, Didier
Faust, Mark

Degree Note

Thesis (Ph.D.)--University of North Carolina at Charlotte, 2017.

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Rights Holder Information

Copyright is held by the author unless otherwise indicated.

Identifier

Burcal_uncc_0694D_11499

Permalink

http://hdl.handle.net/20.500.13093/etd:883