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The Effects of Seat Surface Inclination on the Onset of Muscle Contraction during Sit-to-stand in Healthy Adults  

Shin, Hwa-Kyung (Department of Physical Therapy, College of Medical Science, Catholic University of Daegu)
Ryu, Young-Uk (Department of Physical Therapy, College of Medical Science, Catholic University of Daegu)
Publication Information
The Journal of Korean Physical Therapy / v.24, no.6, 2012 , pp. 383-387 More about this Journal
Abstract
Purpose: Rising from a chair is important for activities of daily living. Several factors have influence on sit-to-stand movement. We studied the effect of inclination of seat surface of on the movement of rising from a chair with electromyographic (EMG). Methods: Twelve subjects performed the sit-to-stand movement on anterior-inclined, standard, and posterior inclined chair. We measured onset time of tibialis anterior and rectus femoris with EMG on each inclination chair. Results: The onset time at the anterior-inclined chair is significantly faster than it at the standard chair (p<0.05). And the onset time at the posterior-inclined chair is significantly slower than it at the standard chair (p<0.05). Conclusion: Rising from anterior inclined chair appeared to be more effective than rising from the standard and posterior inclined chair. Therefore, this finding suggests that the selection of set surface inclination must be considered for activities of daily living during rehabilitation.
Keywords
Electromyography; Muscle contraction; Sit-to-stand movement;
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Times Cited By KSCI : 2  (Citation Analysis)
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