The effect of vibrotactile feedback on postural sway during locomotor activities
Background: Although significant progress has been achieved in developing sensory augmentation methods to improve standing balance, attempts to extend this research to locomotion have been quite limited in scope. The goal of this study was to characterize the effects of two real-time feedback displ...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
BioMed Central Ltd
2013
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| Online Access: | http://hdl.handle.net/1721.1/79914 |
| _version_ | 1826199560342470656 |
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| author | Wall, Conrad Sienko, Kathleen H. Balkwill, M. David Oddsson, Lars I. E. |
| author2 | Massachusetts Institute of Technology. Institute for Medical Engineering & Science |
| author_facet | Massachusetts Institute of Technology. Institute for Medical Engineering & Science Wall, Conrad Sienko, Kathleen H. Balkwill, M. David Oddsson, Lars I. E. |
| author_sort | Wall, Conrad |
| collection | MIT |
| description | Background:
Although significant progress has been achieved in developing sensory augmentation methods to improve standing balance, attempts to extend this research to locomotion have been quite limited in scope. The goal of this study was to characterize the effects of two real-time feedback displays on locomotor performance during four gait-based tasks ranging in difficulty.
Methods:
Seven subjects with vestibular deficits used a trunk-based vibrotactile feedback system that provided real-time feedback regarding their medial-lateral (M/L) trunk tilt when they exceeded a subject-specific predefined tilt threshold during slow and self-paced walking, walking along a narrow walkway, and walking on a foam surface. Two feedback display configurations were evaluated: the continuous display provided real-time continuous feedback of trunk tilt, and the gated display provided feedback for 200 ms during the period immediately following heel strike. The root-mean-square (RMS) trunk tilt and percentage of time below the tilt thresholds were calculated for all locomotor tasks.
Results:
Use of continuous feedback resulted in significant decreases in M/L trunk tilt and increases in percentage times below the tilt thresholds during narrow and foam trials. The gated display produced generally smaller changes.
Conclusions:
This preliminary study demonstrated that use of continuous vibrotactile feedback during challenging locomotor tasks allowed subjects with vestibular deficits to significantly decrease M/L RMS trunk tilt. Analysis of the results also showed that continuous feedback was superior. |
| first_indexed | 2024-09-23T11:22:15Z |
| format | Article |
| id | mit-1721.1/79914 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T11:22:15Z |
| publishDate | 2013 |
| publisher | BioMed Central Ltd |
| record_format | dspace |
| spelling | mit-1721.1/799142022-09-27T19:03:26Z The effect of vibrotactile feedback on postural sway during locomotor activities Wall, Conrad Sienko, Kathleen H. Balkwill, M. David Oddsson, Lars I. E. Massachusetts Institute of Technology. Institute for Medical Engineering & Science Harvard University--MIT Division of Health Sciences and Technology Sienko, Kathleen H. Wall, Conrad Background: Although significant progress has been achieved in developing sensory augmentation methods to improve standing balance, attempts to extend this research to locomotion have been quite limited in scope. The goal of this study was to characterize the effects of two real-time feedback displays on locomotor performance during four gait-based tasks ranging in difficulty. Methods: Seven subjects with vestibular deficits used a trunk-based vibrotactile feedback system that provided real-time feedback regarding their medial-lateral (M/L) trunk tilt when they exceeded a subject-specific predefined tilt threshold during slow and self-paced walking, walking along a narrow walkway, and walking on a foam surface. Two feedback display configurations were evaluated: the continuous display provided real-time continuous feedback of trunk tilt, and the gated display provided feedback for 200 ms during the period immediately following heel strike. The root-mean-square (RMS) trunk tilt and percentage of time below the tilt thresholds were calculated for all locomotor tasks. Results: Use of continuous feedback resulted in significant decreases in M/L trunk tilt and increases in percentage times below the tilt thresholds during narrow and foam trials. The gated display produced generally smaller changes. Conclusions: This preliminary study demonstrated that use of continuous vibrotactile feedback during challenging locomotor tasks allowed subjects with vestibular deficits to significantly decrease M/L RMS trunk tilt. Analysis of the results also showed that continuous feedback was superior. National Institutes of Health (U.S.) (Research Grant R01 DC06201-01) United States. American Recovery and Reinvestment Act of 2009 National Science Foundation (U.S.) (CAREER program RAPD-0846471) 2013-08-22T13:44:55Z 2013-08-22T13:44:55Z 2013-08 2012-09 2013-08-17T19:05:59Z Article http://purl.org/eprint/type/JournalArticle 1743-0003 http://hdl.handle.net/1721.1/79914 Sienko, Kathleen H et al. “The Effect of Vibrotactile Feedback on Postural Sway During Locomotor Activities.” Journal of NeuroEngineering and Rehabilitation 10.1 (2013): 93. en http://dx.doi.org/10.1186/1743-0003-10-93 Journal of NeuroEngineering and Rehabilitation Creative Commons Attribution http://creativecommons.org/licenses/by/2.0 Kathleen H Sienko et al.; licensee BioMed Central Ltd. application/pdf BioMed Central Ltd BioMed Central Ltd |
| spellingShingle | Wall, Conrad Sienko, Kathleen H. Balkwill, M. David Oddsson, Lars I. E. The effect of vibrotactile feedback on postural sway during locomotor activities |
| title | The effect of vibrotactile feedback on postural sway during locomotor activities |
| title_full | The effect of vibrotactile feedback on postural sway during locomotor activities |
| title_fullStr | The effect of vibrotactile feedback on postural sway during locomotor activities |
| title_full_unstemmed | The effect of vibrotactile feedback on postural sway during locomotor activities |
| title_short | The effect of vibrotactile feedback on postural sway during locomotor activities |
| title_sort | effect of vibrotactile feedback on postural sway during locomotor activities |
| url | http://hdl.handle.net/1721.1/79914 |
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