[논문]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

Kang, Hyojeong; Yang, Hoesong

doi:10.15268/ksim.2019.7.2.189

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 원문보기

Journal of the Korean Society of Integrative Medicine = 대한통합의학회지, v.7 no.2, 2019년, pp.189 - 195

Kang, Hyojeong (Dept. of Physical Therapy, Cheongam College) , Yang, Hoesong (Dept. of Physical Therapy, Cheongam College)

Abstract ▼ AI-Helper

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.

주제어

표/그림 (3)

표 Table 1. Characteristics of study subjects
표 Table 2. Comparison of parameters pre and post exercise
표 Table 3. Comparison of changes between groups

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제안 방법

Both groups undertook an exercise training program consisting of warm up exercises and the main chin tuck exercise four times a week for six weeks. The warm-up exercises included neck flexion and extension, lateral flexion to the right and left sides, and rotation to the right and left as a set without restriction on training duration, and the set was repeated three times.
Exercise was performed for 6 weeks, 4 times a week, 40 minutes a day. During the chin tuck exercise, the head was not lifted from the floor in order to selectively strengthen the DCF muscles of the neck.
A total of 30 subjects determined to have CVA of less than 52° in their photograph and were finally included upontheir consent (Durall, 2012). The 30 subjects were randomly divided into the experimental group (n=15), who performed the modified chin tuck exercise with a device at the back of their neck to maintain the lordotic curvature of the cervical spine, and the control group (n=15), who performed the chin tuck exercise without using a device. The general characteristics of the subjects are summarized in Table 1.
The experimental group performed a modified chin tuck exercise maintaining the lordotic curvature of the neck. In order to maintain the lordotic curvature of the neck in a lying position, a height adjustable device was placed between the neck and the floor and the height was raised to the extent that the subject did not feel uncomfortable.
The purpose of this study was to determine the effects of chin tuck exercise combined with a device for cervical curvature. The chin tuck exercise performed with a device to allow FHP subjects to maintain the lordotic curvature in their neck led to significant increases in the strength of the DCF muscles.
Both groups undertook an exercise training program consisting of warm up exercises and the main chin tuck exercise four times a week for six weeks. The warm-up exercises included neck flexion and extension, lateral flexion to the right and left sides, and rotation to the right and left as a set without restriction on training duration, and the set was repeated three times. The chin tuck exercise, which tuck the chin and press the neck down into the floor with tilt the head down as if nodding "yes" was performed in the supine position, and the examiner palpates their sternocleidomastoid muscle to minimize compensation during exercise.
This study has limitations that may have affected the results: the camera stand was not adjusted according to the height of the subjects when taking a picture of each subject and quantification of the device to maintain the curvature of the neck is necessary. If we consider the method to overcome these limitations, we can get better results.
However, there has been little research on differences in the effects of modified chin tuck exercise with corrected alignment on cervical curvature, the strength and endurance of the DCF muscles. so we conducted this study to determine the effects of modified chin tuck exercise with maintain the cervical curvature on the CVA, the strength and endurance of the DCF muscles.

대상 데이터

This study recruited students from college in the S city, South Korea, and 80 students voluntarily agreed to participate in the experiment after being informed of the purpose and methods of this study. Some students were excluded from the study for having acute neck pain, a previous history of neck surgery, neurological or orthopedic problems in the neck, other conditions that might affect the experiment, a fracture or other structural abnormality of the joint, nerve or a psychiatric problem/inability to understand instructions, or if they had participated in a neck rehabilitation program over the last six months.

데이터처리

, Chicago, IL, USA). A paired t-test was used to evaluate the differences in the two groups before and after exercise. An independent t-test was used to evaluate the differences between the groups.
A paired t-test was used to evaluate the differences in the two groups before and after exercise. An independent t-test was used to evaluate the differences between the groups. An α=0.

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