Comparison of scapular muscle activity during Y-raise exercise with isometric adduction in subjects with and without rounded shoulder posture.
Background: Rounded shoulder posture (RSP) is a commonly observed abnormal alignment of the scapula. RSP is typically associated with shortening of the pectoralis muscle and weakness of the lower trapezius (LT). Changed muscle length of these muscles may result in different movement patterns compare...
| Publicado en: | Physiotherapy Theory & Practice Vol. 42; no. 5; pp. 649 - 657 |
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| Autores principales: | , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
May2026
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=195034314&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 195034314 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09593985 BCJ jtl: Physiotherapy Theory & Practice issn: 09593985 maglogo: Y pubinfo: dt: May2026 vid: 42 iid: 5 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 195034314 189727710 195034314 195034314 10.1080/09593985.2025.2594569 195034314 ppf: 649 ppct: 8 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Comparison of scapular muscle activity during Y-raise exercise with isometric adduction in subjects with and without rounded shoulder posture. aug: au: Hwang, Byeong-Hun Jeon, In-Cheol affil: Department of Physical Therapy, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea sug: subj: Scapula Physiopathology Trapezius Muscles Physiopathology Serratus Anterior Muscles Physiopathology Exercise Isometric Contraction Adduction Kyphosis Physiopathology Shoulder Physiopathology Posture Human Cross Sectional Studies Comparative Studies Electromyography Descriptive Statistics Data Analysis Software Two-Way Analysis of Variance Post Hoc Analysis Paired T-Tests Pectoralis Muscles Tilt Muscle Weakness ab: Background: Rounded shoulder posture (RSP) is a commonly observed abnormal alignment of the scapula. RSP is typically associated with shortening of the pectoralis muscle and weakness of the lower trapezius (LT). Changed muscle length of these muscles may result in different movement patterns compared to healthy subjects when performing exercises. Purpose: We investigated to compare the muscle activity of the upper trapezius (UT), LT, and serratus anterior (SA) between healthy and RSP groups during Y-raise exercises with and without isometric adduction (IAD) using an elastic band. Methods: A cross-sectional study with a single data collection session, participants were classified according to the criteria for RSP and assigned to either the healthy group (25.06 ± 1.24, n = 16) or the RSP group (24.88 ± 2.09, n = 16). Surface electromyography was used to measure muscle activity of the UT, LT, and SA during the exercises. Results: UT and SA muscle activity significantly decreased during the Y-raise with IAD compared to the Y-raise without IAD in both groups (p <.025). Conversely, LT muscle activity significantly increased during the Y-raise with IAD compared to the Y-raise without IAD in the healthy group (p <.025), while LT activity significantly decreased in the RSP group (p <.025). Conclusion: Applying IAD during the Y-raise exercise is effective for selectively increasing LT activity while decreasing UT and SA activity in the healthy group. However, structural improvement of scapular alignment may be required for subjects with RSP to perform the Y-raise with IAD effectively. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Unknown language: English refInfo: holdings: @attributes: islocal: N |
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