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Article type: Research Article
Authors: Lee, Su-Kyounga | Jung, Jae-Minb | Lee, Sang-Yeolc; *
Affiliations: [a] Department of Physical Therapy, Gimhae University, Gimhae, Korea | [b] Department of Physical Therapy, Graduated School of Daegu University, Daegu, Korea | [c] Department of Physical Therapy, Kyungsung University, Busan, Korea
Correspondence: [*] Corresponding author: Dr. Sang-Yeol Lee, Department Physical Therapy, Kyungsung University, 314-79, Daeyeon-dong, Nam-gu, Busan, 608-736, Korea. E-mail: sjslh486@hanmail.net
Abstract: Background and Objectives:This study aims to analyze muscle activity of the lower limbs during stance phase of gait in accordance with the application of various vertical loadings. Material and Methods:Participants who met the criterion for this study (n=11). During their gait, various vertical loadings (0 kg, 0.5 kg, 1 kg) were provided and their muscle activities in the lower limbs during stance phase were measured. In order to accurately measure their gait, they were instructed to walk 5 gait cycles, and 3 gait cycles excluding the front and back 1 cycle were used for analysis. For the objectivity of data, measurements were made three times under each condition and average values were employed for statistic analysis. Results:The intervention of applying various vertical loadings of 0 kg, 0.5 kg, 1 kg to the lower limbs during swing phase in order to compare muscle activities of the lower limbs during stance phase of gait resulted in the following outcomes. Tibialis anterior and peroneus longus muscle activities did not significantly differ with the application of various vertical loadings to the lower limbs during swing phase, while gluteus medius muscle activities significantly differed according to the levels of loadings applied. There were significant differences in muscle activities between the loading of 0 kg and the loading of 0.5 kg. Conclusions:Clinicians may use these results to effectively progress strengthening for gluteus medius in the rehabilitation of lower extremity injuries.
Keywords: Gluteus medius activation, gait, stability
DOI: 10.3233/BMR-2012-00361
Journal: Journal of Back and Musculoskeletal Rehabilitation, vol. 26, no. 2, pp. 159-161, 2013
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