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KMID : 1035420190070020189
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Journal of The Korean Society of Integrative Medicine
2019 Volume.7 No. 2 p.189 ~ p.195
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The Effects of Modified Chin Tuck Exercise on the Cervical Curvature, the Strength and Endurance of the Deep Cervical Flexor Muscles in Subjects with Forward Head Posture
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Kang Hyo-Jeong
Yang Hoe-Song
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Abstract
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Purpose : The purpose of this study was to investigate the effects of chin tuck exercise (CTE) on the craniovertebral angle (CVA), strength and endurance of deep cervical flexor (DCF) muscles in subjects with forward head posture(FHP). This study was performed on 30 subjects with FHP.
Method : Thirty subjects were divided into two groups; modified CTE (n=15), conventional CTE (n=15). Both of the group performed the exercise 4 times a week for 6 weeks. The subjects performed CTE in two different methods; modified CTE, with device designed that help keep cervical lordois curve, and coventional CTE, without using device. The CVA was measured using Image software version. A pressure biofeedback unit was used to measure the strength and endurance of the DCF muscles. The data was analyzed by the paired t-test for comparing before and after changes of variables in each group and the independent t-test for comparing the between groups.
Result : There was statistically significant difference of before and after strength and endurance of DCF muscles in modified CTE (p<0.05). There was statistically significant difference of before and after only endurance of DCF muscles in conventional CTE (p<0.05). There was statistically significant difference of between the two group in strength of DCF muscles (p<0.05).
Conclusion : Muscle strength to stabilize the spine plays an important role in maintaining a good posture. Therefore, we suggest that the application of CTE with a device designed to maintain the lordotic curvature in the neck is likely to yield better outcomes in FHP subjects in future studies.
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KEYWORD
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cervical curvature, deep cervical flexor muscles, endurance, modified chin tuck exercise, strength
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