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KMID : 1142420200180030403
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PNF and Movement
2020 Volume.18 No. 3 p.403 ~ p.414
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Effect of Chin Tuck Exercises on Various Postures and Muscle Activity of the Neck and Shoulder
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Ahn Su-Hong
Yang Ju-Hui
Lee Su-Kyong
Park Jin-Sung
Jo Jae-Sung
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Abstract
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Purpose: This study examined how performing chin tuck exercises in supine, sitting, and standing positions affects changes in the muscle activity of the neck and shoulder.
Methods: Seventeen men and three women with forward head posture participated in the study. The subjects performed the chin tuck exercise using a pressure biofeedback unit. After determining the ideal order for performing the chin tuck exercise in supine, sitting, and standing positions through randomized controlled trials, muscle activity was measured in the dominant-side sternocleidomastoid, scalenus anterior, upper trapezius, and levator scapulae. Muscle activity was measured three times in each muscle for each position, and the average of the three measurements was used for analysis.
Results: In this study, the chin tuck exercise performed in a supine position reduced muscle activity of the sternocleidomastoid, scalenus anterior, upper trapezius, and levator scapulae significantly more than performing the exercise in either sitting or standing positions (p < 0.05). No significant difference in muscle activity was observed when the exercise was performed in a sitting position versus a standing position (p < 0.05).
Conclusion: Performing a chin tuck exercise in a supine position is more effective for stabilizing the neck and shoulder than performing it in a sitting or standing position, as it reduces excessive tension and fatigue in the neck and shoulder.
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KEYWORD
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Chin tuck, Posture, Biofeedback unit, Muscle activity
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