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Comparative Electromyographic Study of Scapular Stabilizing Muscles During Five Main Rehabilitation Exercises.

Comparative Electromyographic Study of Scapular Stabilizing Muscles During Five Main Rehabilitation Exercises.

Authors :
Mendez-Rebolledo, Guillermo
Araya-Quintanilla, Felipe
Guzmán-Muñoz, Eduardo
Salazar-Mendez, Joaquín
Cruz-Montecinos, Carlos
Berckmans, Kelly R.
Calatayud, Joaquín
Source :
American Journal of Physical Medicine & Rehabilitation. Jun2024, Vol. 103 Issue 6, p502-509. 8p.
Publication Year :
2024

Abstract

Objective: The aim of the study is to compare the surface electromyographic amplitude, activation ratio, and onset latency of the main scapular stabilizing muscles between five typical rehabilitative exercises. Design: Twenty-seven healthy participants performed five scapular exercises (wall slide, wall push-up plus, prone horizontal abduction with external rotation, external rotation in side lying, and lowrow)while simultaneously recording surface electromyographic of serratus anterior, middle trapezius, lower trapezius, and upper trapezius. Surface electromyographic amplitudes, onset latencies, and activation ratios were calculated. Results: Prone horizontal abduction with external rotation showed an excellent upper trapezius/middle trapezius (0.43) and upper trapezius/lower trapezius (0.30) muscle balancewith high (>50% maximum voluntary isometric contraction) middle trapezius and lower trapezius amplitudes, a low (<20% maximum voluntary isometric contraction) upper trapezius amplitude, and an early activation of the scapular stabilizing muscles (-474.7 to 89.9 ms) relative to upper trapezius. External rotation in side lying showed excellent upper trapezius/serratus anterior (0.26), upper trapezius/middle trapezius (0.32), and upper trapezius/lower trapezius (0.21) activation ratios and, along with low row and wall slide, showed early activation of the scapular stabilizing muscles (-378.1 to -26.6 ms). Conclusions: Prone horizontal abduction with external rotation presented optimal scapular neuromuscular control. Although external rotation in side lying, low row, and wall slide did not meet all the criteria associated with optimal scapular neuromuscular control, these exercises could be used in early stages of shoulder rehabilitation because they favor early activation of the scapular stabilizing muscles. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
08949115
Volume :
103
Issue :
6
Database :
Academic Search Index
Journal :
American Journal of Physical Medicine & Rehabilitation
Publication Type :
Academic Journal
Accession number :
177979031
Full Text :
https://doi.org/10.1097/PHM.0000000000002394