Comparison of Muscle Thickness and Changing Ratio for Cervical Flexor Muscles During the Craniocervical Flexion Test Between Subjects With and Without Forward Head Posture

Background: The craniocervical flexion test (CCFT) was developed for the activation and en-durance of deep cervical flexors. However, the muscle thickness and muscle thickness chang-ing ratio of the sternocleidomastoid (SCM) and deep cervical flexor (DCF) muscles in subjects with and without forward...

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Main Authors: Jae-hyun Lee, Ui-jae Hwang, Oh-yun Kwon
Format: Article
Language:English
Published: Korean Research Society of Physical Therapy 2022-08-01
Series:Physical Therapy Korea
Subjects:
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author Jae-hyun Lee
Ui-jae Hwang
Oh-yun Kwon
author_facet Jae-hyun Lee
Ui-jae Hwang
Oh-yun Kwon
author_sort Jae-hyun Lee
collection DOAJ
description Background: The craniocervical flexion test (CCFT) was developed for the activation and en-durance of deep cervical flexors. However, the muscle thickness and muscle thickness chang-ing ratio of the sternocleidomastoid (SCM) and deep cervical flexor (DCF) muscles in subjects with and without forward head posture (FHP) have not been reported.Objects: To determine the difference in thickness of the SCM and DCF muscles and the differ-ence in the muscle thickness changing ratio between SCM, DCF, and DCF/SCM 20 mmHg and DCF/SCM 30 mmHg between subjects with and without FHP.Methods: Thirty subjects with and without FHP were enrolled. The muscle thickness of the SCM and DCF was measured when maintained at a baseline pressure of 20 mmHg and a maxi-mum pressure of 30 mmHg using a pressure biofeedback unit during the CCFT. Ultrasonog-raphy was used to capture images of SCM and DCF muscle thickness during the CCFT, which was calculated using the picture archiving and communication system (PACS). Results: We observed a significant difference within the pressure main effect between SCM and DCF at a baseline pressure of 20 mmHg and a maximum pressure of 30 mmHg (p < 0.05). However, there was no significant difference in the muscle thickness and muscle thickness changing ratio for SCM and DCF during CCFT between subjects with and without FHP.Conclusion: There was no significant difference in the muscle thickness recruitment pattern during CCFT in posture changes between subjects with and without FHP.
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spelling doaj.art-e16bd065275f459fa2c0b4115afd00e52024-04-02T07:24:22ZengKorean Research Society of Physical TherapyPhysical Therapy Korea1225-89622287-982X2022-08-0129318018610.12674/ptk.2022.29.3.180Comparison of Muscle Thickness and Changing Ratio for Cervical Flexor Muscles During the Craniocervical Flexion Test Between Subjects With and Without Forward Head PostureJae-hyun Lee0https://orcid.org/0000-0002-2824-6454Ui-jae Hwang1https://orcid.org/0000-0002-2050-5503Oh-yun Kwon2https://orcid.org/0000-0002-9699-768XDepartment of Physical Therapy, The Graduate School, Yonsei University, Wonju, KoreaKinetic Ergocise Based on Movement Analysis Laboratory, Department of Physical Therapy, College of Software and Digital Healthcare Convergence, Yonsei University, Wonju, KoreaKinetic Ergocise Based on Movement Analysis Laboratory, Department of Physical Therapy, College of Software and Digital Healthcare Convergence, Yonsei University, Wonju, KoreaBackground: The craniocervical flexion test (CCFT) was developed for the activation and en-durance of deep cervical flexors. However, the muscle thickness and muscle thickness chang-ing ratio of the sternocleidomastoid (SCM) and deep cervical flexor (DCF) muscles in subjects with and without forward head posture (FHP) have not been reported.Objects: To determine the difference in thickness of the SCM and DCF muscles and the differ-ence in the muscle thickness changing ratio between SCM, DCF, and DCF/SCM 20 mmHg and DCF/SCM 30 mmHg between subjects with and without FHP.Methods: Thirty subjects with and without FHP were enrolled. The muscle thickness of the SCM and DCF was measured when maintained at a baseline pressure of 20 mmHg and a maxi-mum pressure of 30 mmHg using a pressure biofeedback unit during the CCFT. Ultrasonog-raphy was used to capture images of SCM and DCF muscle thickness during the CCFT, which was calculated using the picture archiving and communication system (PACS). Results: We observed a significant difference within the pressure main effect between SCM and DCF at a baseline pressure of 20 mmHg and a maximum pressure of 30 mmHg (p < 0.05). However, there was no significant difference in the muscle thickness and muscle thickness changing ratio for SCM and DCF during CCFT between subjects with and without FHP.Conclusion: There was no significant difference in the muscle thickness recruitment pattern during CCFT in posture changes between subjects with and without FHP.neck musclespostureultrasonography
spellingShingle Jae-hyun Lee
Ui-jae Hwang
Oh-yun Kwon
Comparison of Muscle Thickness and Changing Ratio for Cervical Flexor Muscles During the Craniocervical Flexion Test Between Subjects With and Without Forward Head Posture
Physical Therapy Korea
neck muscles
posture
ultrasonography
title Comparison of Muscle Thickness and Changing Ratio for Cervical Flexor Muscles During the Craniocervical Flexion Test Between Subjects With and Without Forward Head Posture
title_full Comparison of Muscle Thickness and Changing Ratio for Cervical Flexor Muscles During the Craniocervical Flexion Test Between Subjects With and Without Forward Head Posture
title_fullStr Comparison of Muscle Thickness and Changing Ratio for Cervical Flexor Muscles During the Craniocervical Flexion Test Between Subjects With and Without Forward Head Posture
title_full_unstemmed Comparison of Muscle Thickness and Changing Ratio for Cervical Flexor Muscles During the Craniocervical Flexion Test Between Subjects With and Without Forward Head Posture
title_short Comparison of Muscle Thickness and Changing Ratio for Cervical Flexor Muscles During the Craniocervical Flexion Test Between Subjects With and Without Forward Head Posture
title_sort comparison of muscle thickness and changing ratio for cervical flexor muscles during the craniocervical flexion test between subjects with and without forward head posture
topic neck muscles
posture
ultrasonography
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