Effects of Abdominal Hollowing During Stair Climbing on the Activations of Local Trunk Stabilizing Muscles: A Cross-Sectional Study

Title
Effects of Abdominal Hollowing During Stair Climbing on the Activations of Local Trunk Stabilizing Muscles: A Cross-Sectional Study
Author(s)
안상호이아영김은혁조윤우권순오[권순오]손수민
Keywords
Stair climbing; Abdominal hollowing; Local trunk stabilizing muscles
Issue Date
201312
Publisher
대한재활의학회
Citation
Annals of Rehabilitation Medicine, v.37, no.6, pp.804 - 813
Abstract
Objective To examine using surface electromyography whether stair climbing with abdominal hollowing (AH) is better at facilitating local trunk muscle activity than stair climbing without AH. Methods Twenty healthy men with no history of low back pain participated in the study. Surface electrodes were attached to the multifidus (MF), lumbar erector spinae, thoracic erector spinae, transverse abdominus - internal oblique abdominals (TrA-IO), external oblique abdominals (EO), and the rectus abdominis. Amplitudes of electromyographic signals were measured during stair climbing. Study participants performed maximal voluntary contractions (MVC) for each muscle in various positions to normalize the surface electromyography data.Results AH during stair climbing resulted in significant increases in normalized MVCs in both MFs and TrA-IOs (p<0.05). Local trunk muscle/global trunk muscle ratios were higher during stair climbing with AH as compared with stair climbing without AH. Especially, right TrA-IO/EO and left TrA-IO/EO were significantly increased (p<0.05).Conclusion Stair climbing with AH activates local trunk stabilizing muscles better than stair climbing without AH. The findings suggest that AH during stair climbing contributes to trunk muscle activation and trunk stabilization.
URI
http://hdl.handle.net/YU.REPOSITORY/27795
ISSN
2234-0645
Appears in Collections:
의과대학 > 재활의학교실 > Articles
의과대학 > 영상의학과학교실 > Articles
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