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The Effect of Thoracic Joint Mobilization on the Changes of the Thoracic Kyphosis Angle and Static and Dynamic Balance
Biomed Sci Letters 2019;25:149-158
Published online June 30, 2019;  https://doi.org/10.15616/BSL.2019.25.2.149
© 2019 The Korean Society For Biomedical Laboratory Sciences.

Hae-Jin Jeong* and Byeong-Jo Kim,**

Department of Biomedical Health Science, Dong Eui University, Busan 47340, Korea
Correspondence to: Byeong-Jo Kim. Department of Biomedical Health Science, Dong-Eui University, 176 Eongwangno (gayadong san24), Busanjin-gu, Busan 47340, Korea.
Tel: +82-51-890-4221, Fax: +82-0505-182-6881, e-mail: pt123@deu.ac.kr
Received May 9, 2019; Revised June 19, 2019; Accepted June 20, 2019.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
 Abstract
The objective of this study was to evaluate the effects of thoracic mobilization (TM) on the angle of thoracic kyphosis, and static and dynamic balances by application period. The subjects of this study were 18 adult males and females (돟20 years old) who had the angle of thoracic kyphosis equal to or higher than 40째. A pre-test was conducted for all subjects and TM was carried out. Data were collected before the intervention, 3 weeks after the intervention, and 6 weeks after the intervention. It was measured three times per measurement and mean values were used for the analysis. The results of this study showed that the angle of thoracic kyphosis significantly (P<.05) decreased after applying TM. However, the migration area (mm2) of the center of pressure (COP) in the static balance did not vary significantly. In the case of the dynamic balance, when eyes were open, the migration area (mm2) of the COP significantly (P<.05) decreased after 3 weeks. When eyes were open, the migration area (mm2) of the COP significantly (P<.05) decreased after 3 weeks and 6 weeks. Therefore, an intervention for improving the human body alignment and balance should be applied for a long-term, rather than a short-term, in order to be effective.
Keywords : Thoracic kyphosis, Thoracic mobilization, Balance