Comparison of Maximum Voluntary Contraction Positions for Serratus Anterior Muscle in Men with Scapular Dyskinesis: Electromyography Analysis
Background: The purpose of this study was to quantify the surface EMG activity of the serratus anterior muscle during two main test positions performed with the maximum effort by the subjects with scapular dyskinesis. Methods: This cross-sectional study included 30 men (aged 18 to 28) who were s...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Shiraz University of Medical Sciences
2019-06-01
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| Series: | Journal of Rehabilitation Sciences and Research |
| Subjects: | |
| Online Access: | http://jrsr.sums.ac.ir/article_45004_5fa5ff379747989e7997802fb1af611d.pdf |
| Summary: | Background: The purpose of this study was to quantify the surface EMG activity
of the serratus anterior muscle during two main test positions performed with
the maximum effort by the subjects with scapular dyskinesis.
Methods: This cross-sectional study included 30 men (aged 18 to 28) who
were suffering from scapular dyskinesis. Scapular dyskinesis was measured by
scapular dyskinesis test and surface EMG was employed to record the EMG
activity of the serratus anterior during two common positions of maximal
voluntary isometric contraction.
Results: The results revealed that there is no significant difference in the mean
EMG activity of the serratus anterior muscle during two MVIC testing positions
(P=0.846). Notably, the test-retest ICC scores for the EMG recordings during
position 1 (P=0.97) and position 2 (P=0.96) were excellent.
Conclusion: It was found that no one muscle test produced the highest MVIC
for all subjects. Therefore, to perform normalization of every muscle within each
subject, it is suggested that two tests identified in this study be performed which
usually produce high levels of EMG activity. |
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| ISSN: | 2345-6159 2345-6159 |