PMID- 38261765 OWN - NLM STAT- MEDLINE DCOM- 20240517 LR - 20240517 IS - 1537-7385 (Electronic) IS - 0894-9115 (Linking) VI - 103 IP - 6 DP - 2024 Jun 1 TI - Comparative Electromyographic Study of Scapular Stabilizing Muscles During Five Main Rehabilitation Exercises. PG - 502-509 LID - 10.1097/PHM.0000000000002394 [doi] AB - 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 low row) 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 balance with 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. CI - Copyright (c) 2023 Wolters Kluwer Health, Inc. All rights reserved. FAU - Mendez-Rebolledo, Guillermo AU - Mendez-Rebolledo G AD - From the Laboratorio de Investigacion Somatosensorial y Motora, Escuela de Kinesiologia, Facultad de Salud, Universidad Santo Tomas, Talca, Chile (GM-R, EG-M, JS-M); Escuela de Kinesiologia, Facultad de Odontologia y Ciencias de la Rehabilitacion, Universidad San Sebastian, Santiago, Chile (FA-Q); Department of Physical Therapy, Faculty of Medicine, University of Chile, Santiago, Chile (CC-M); Department of Rehabilitation Sciences (Physical Therapy), University Hospital Ghent, Faculty of Medicine and Health Sciences, Ghent University, Gent, Belgium (KRB); and Exercise Intervention for Health Research Group (EXINH-RG), Department of Physiotherapy, University of Valencia, Spain (JC). FAU - Araya-Quintanilla, Felipe AU - Araya-Quintanilla F FAU - Guzman-Munoz, Eduardo AU - Guzman-Munoz E FAU - Salazar-Mendez, Joaquin AU - Salazar-Mendez J FAU - Cruz-Montecinos, Carlos AU - Cruz-Montecinos C FAU - Berckmans, Kelly R AU - Berckmans KR FAU - Calatayud, Joaquin AU - Calatayud J LA - eng PT - Comparative Study PT - Journal Article DEP - 20231221 PL - United States TA - Am J Phys Med Rehabil JT - American journal of physical medicine & rehabilitation JID - 8803677 SB - IM MH - Humans MH - *Electromyography MH - Male MH - *Scapula/physiology MH - Female MH - Adult MH - *Exercise Therapy/methods MH - *Isometric Contraction/physiology MH - *Muscle, Skeletal/physiology MH - Young Adult MH - Superficial Back Muscles/physiology MH - Healthy Volunteers COIS- Financial disclosure statements have been obtained, and no conflicts of interest have been reported by the authors or by any individuals in control of the content of this article. EDAT- 2024/01/23 18:42 MHDA- 2024/05/17 12:43 CRDT- 2024/01/23 15:32 PHST- 2024/05/17 12:43 [medline] PHST- 2024/01/23 18:42 [pubmed] PHST- 2024/01/23 15:32 [entrez] AID - 00002060-990000000-00367 [pii] AID - 10.1097/PHM.0000000000002394 [doi] PST - ppublish SO - Am J Phys Med Rehabil. 2024 Jun 1;103(6):502-509. doi: 10.1097/PHM.0000000000002394. Epub 2023 Dec 21.