한국전문물리치료학회지 (Physical Therapy Korea)

  • 제27권4호
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  • Pages.272-277
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  • 2020
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  • 1225-8962(pISSN)
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  • 2287-982X(eISSN)
한국전문물리치료학회 (Korean Research Society of Physical Therapy)
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Comparison of Upper and Lower Cervical Muscle Strengths Between Subjects With and Without Forward Head Posture

  • Eun, Ji-yeon (Department of Physical Therapy, Graduate School, Yonsei University) ;
  • Kwon, Oh-yun (Department of Physical Therapy, College of Health Science, Laboratory of Kinetic Ergocise Based on Movement Analysis, Yonsei University) ;
  • Hwang, Ui-jae (Department of Physical Therapy, Graduate School, Yonsei University) ;
  • Jung, Sung-hoon (Department of Physical Therapy, Graduate School, Yonsei University) ;
  • Ahn, Sun-hee (Department of Physical Therapy, Graduate School, Yonsei University)
  • 투고 : 2020.10.08
  • 심사 : 2020.10.27
  • 발행 : 2020.11.20
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초록

Background: Forward head posture (FHP) is common postural malalignment. FHP is described relatively extension to upper cervical and lower cervical is relatively flexion. Although several researchers mentioned the lower cervical flexion posture in FHP, most of the studies related to FHP is focused on the deep cervical flexor function. Objects: The purposes of present study is to compare the cervical strength (upper cervical extension [UCE], lower cervical extension [LCE], upper cervical flexion [UCF], lower cervical flexion [LCF]) between individuals with and without FHP. Methods: Fifty-one participants are recruited. Participants who have the craniovertebral angle (CVA) less than 48 degree were classified to the FHP group (n = 24) and the others were included in without FHP group (n = 27). The cervical strength (UCE, LCE, UCF, LCF) were measured using Smart KEMA strength sensor and the strength data was normalized by body weight. All strength measurement conducted at head and neck neutral position in sitting. Independent t-test was used to compare the cervical strength between individuals with and without FHP. Results: The mean value of CVA was greater in without FHP group than with FHP group (p < 0.000). The strength value of UCF (p < 0.002) and LCE (p < 0.001) was significant less in FHP group than without FHP group. But no significant differences were seen in the LCF and UCE strength between two groups. Conclusion: UCF and LCE weakness in FHP group should be considered to evaluate and manage the individuals with FHP.

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참고문헌

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