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KMID : 1151220140200010001
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Journal of Korean Academy of Orthopedic Manual Therapy
2014 Volume.20 No. 1 p.1 ~ p.7
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The Correlation Between Forward Head Position and Neck Flexor Thickness During Cranio-Cervical Flexion Exercise
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Lee Ji-Min
Yu Jun-Su
Lim Ji-Eun
Lee Hyun-Ah
Moon Sung-Gi
Jang Hyun-Jeong
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Abstract
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Background: As the increase of forward head position, we studied the change of thickness of deep cervical flexor (DCF) compared of with sternocleidomastoid (SCM). we measured and analysed the change of thickness of the neck flexor for forward head position and cranio-cervical flexion exercise (CCFE).
Methods: Using a cross-sectional design, we conducted the study selecting 35 healthy adults (12 males, 23 females). We measured the craniovertebral angle (CVA), instructed them to perform the CCFE, and measured the DCF and SCM using ultrasonography during the contraction and relaxation period.
Results: Intra-reliability of SCM is .96, longus capitis is .92 and longus coli is .97. we compared according to the change of forward head position, Correlation of DCF is .841, and DCF/SCM is .754 by significant positive correlation. At the comparison of CCFE and Resting muscle thickness, SCM and DCF is .00, DCF/SCM is .68.
Conclusion: There is a strong positive correlation between the change amount of DCF and DCF/SCM as the increase of CVA.
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KEYWORD
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Cranio-cervical flexion test, Deep neck flexors, Forward head posture, Sternocleidoma stoid
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