Ji-hyun Lee1, Heon-seock Cynn2, Tae-lim Yoon3, Chang-hee Ko4, Woo-jeong Choi5, Sil-ah Choi6, Bong-sam Choi7. 1. Applied Kinesiology and Ergonomic Technology Laboratory, Department of Physical Therapy, The Graduate School, Yonsei University, Baekwoon-kwan, 1 Yonseidae-gil, Wonju, Kangwon-do, Republic of Korea. Electronic address: jihyun.lee@yonsei.ac.kr. 2. Applied Kinesiology and Ergonomic Technology Laboratory, Department of Physical Therapy, The Graduate School, Yonsei University, Baekwoon-kwan, 1 Yonseidae-gil, Wonju, Kangwon-do, Republic of Korea. Electronic address: cynn@yonsei.ac.kr. 3. Applied Kinesiology and Ergonomic Technology Laboratory, Department of Physical Therapy, The Graduate School, Yonsei University, Baekwoon-kwan, 1 Yonseidae-gil, Wonju, Kangwon-do, Republic of Korea; Department of Physical Therapy, College of Health and Welfare, Woosong University, #17-2, Jayang-dong, Dong-gu, Daejeon, Republic of Korea. Electronic address: free0829@gmail.com. 4. Applied Kinesiology and Ergonomic Technology Laboratory, Department of Physical Therapy, The Graduate School, Yonsei University, Baekwoon-kwan, 1 Yonseidae-gil, Wonju, Kangwon-do, Republic of Korea. Electronic address: gchpsh@hanmail.net. 5. Applied Kinesiology and Ergonomic Technology Laboratory, Department of Physical Therapy, The Graduate School, Yonsei University, Baekwoon-kwan, 1 Yonseidae-gil, Wonju, Kangwon-do, Republic of Korea. Electronic address: cwj7354@gmail.com. 6. Applied Kinesiology and Ergonomic Technology Laboratory, Department of Physical Therapy, The Graduate School, Yonsei University, Baekwoon-kwan, 1 Yonseidae-gil, Wonju, Kangwon-do, Republic of Korea. Electronic address: silah88@naver.com. 7. Department of Physical Therapy, College of Health and Welfare, Woosong University, #17-2, Jayang-dong, Dong-gu, Daejeon, Republic of Korea. Electronic address: bchoi@wsu.ac.kr.
Abstract
BACKGROUND: There are various methods for rehabilitating round-shoulder posture (RSP), including strengthening exercises, stretching, and using a shoulder brace or taping to correct the altered posture. However, no study has determined which intervention is the most effective of the three methods to decrease RSP (intervention #1: scapular posterior tilting exercise alone [hereafter, SPT], intervention #2: the scapular posterior tilting exercise after PM stretching [PM stretch+SPT], and intervention #3: the scapular posterior tilting exercise with use of a shoulder brace [SPT+brace]). OBJECTIVES: The purpose of this study was to compare the SPT, PM stretch+SPT, and SPT+brace on RSP, PM index (PMI), and lower trapezius (LT) and serratus anterior (SA) activity in subjects with RSP. METHODS: In total, fifteen young men with RSP, participated in the study (21.46 ± 2.30 years old). RSP was confirmed using a caliper measure. Surface electromyography (SEMG) data for LT and SA activity were collected during the three interventions, and the SEMG data are expressed as a percentage of the maximal voluntary isometric contraction (%MVIC). RESULTS: RSP was significantly less in the PM stretch+SPT and SPT+brace than in the SPT (P<0.05). PMI was significantly greater in the PM stretch+SPT and SPT+brace than in the SPT (P<0.05). LT activity was significantly greater in the PM stretch+SPT than in the SPT or SPT+brace in subjects with RSP (P<0.05). CONCLUSIONS: The PM stretching exercise and application of a shoulder brace may help correct RSP and restore the length of the PM. The posterior tilting exercise after PM stretching was the most effective method for eliciting greater LT muscle activation among the interventions tested.
BACKGROUND: There are various methods for rehabilitating round-shoulder posture (RSP), including strengthening exercises, stretching, and using a shoulder brace or taping to correct the altered posture. However, no study has determined which intervention is the most effective of the three methods to decrease RSP (intervention #1: scapular posterior tilting exercise alone [hereafter, SPT], intervention #2: the scapular posterior tilting exercise after PM stretching [PM stretch+SPT], and intervention #3: the scapular posterior tilting exercise with use of a shoulder brace [SPT+brace]). OBJECTIVES: The purpose of this study was to compare the SPT, PM stretch+SPT, and SPT+brace on RSP, PM index (PMI), and lower trapezius (LT) and serratus anterior (SA) activity in subjects with RSP. METHODS: In total, fifteen young men with RSP, participated in the study (21.46 ± 2.30 years old). RSP was confirmed using a caliper measure. Surface electromyography (SEMG) data for LT and SA activity were collected during the three interventions, and the SEMG data are expressed as a percentage of the maximal voluntary isometric contraction (%MVIC). RESULTS: RSP was significantly less in the PM stretch+SPT and SPT+brace than in the SPT (P<0.05). PMI was significantly greater in the PM stretch+SPT and SPT+brace than in the SPT (P<0.05). LT activity was significantly greater in the PM stretch+SPT than in the SPT or SPT+brace in subjects with RSP (P<0.05). CONCLUSIONS: The PM stretching exercise and application of a shoulder brace may help correct RSP and restore the length of the PM. The posterior tilting exercise after PM stretching was the most effective method for eliciting greater LT muscle activation among the interventions tested.
Authors: Ann M Cools; Dorien Borms; Birgit Castelein; Fran Vanderstukken; Fredrik R Johansson Journal: Knee Surg Sports Traumatol Arthrosc Date: 2015-12-24 Impact factor: 4.342
Authors: María Orosia Lucha-López; José Miguel Tricás-Moreno; Elena Gaspar-Calvo; Ana Carmen Lucha-López; Concepción Vidal-Peracho; César Hidalgo-García; Santos Caudevilla-Polo; Pablo Fanlo-Mazas Journal: J Int Med Res Date: 2018-06-25 Impact factor: 1.671