대한통합의학회지 (Journal of The Korean Society of Integrative Medicine)

  • 제4권4호
  • /
  • Pages.83-90
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  • 2016
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  • 2288-1174(pISSN)
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  • 2383-9651(eISSN)
대한통합의학회 (Korean Society of Integrative Medicine)
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치위생 작업 수행 시 치료 자세에 따른 근육활동과 움직임

Muscle Activity and Range of Motion According to Operating Posture at Dental Hygiene Work

  • 김다혜 (동서대학교 치위생학과) ;
  • 김태훈 (동서대학교 작업치료학과)
  • Kim, Dahye (Dept. of Dental Hygiene, Dongseo University) ;
  • Kim, Taehoon (Dept. of Occupational Therapy, Dongseo University)
  • 투고 : 2016.11.05
  • 심사 : 2016.12.12
  • 발행 : 2016.12.30
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초록

Purpose : Recommended posture according to the location of operating teeth have been standardized in dental clinic to prevent musculoskeletal disorder. However, clinicians do not comply with this rule in many cases. This study investigated the effects of operating posture on cranio-cervical range of motion (CROM) and muscles activity of neck and upper extremity. Methods : Sixteen healthy dental hygiene students were participated. During operating posture (3 recommended and 3 experimental postures which were set front, side, back, respectively), CROM in the fronal and sagittal plane were measured by Cervical Range of Motion Instrument and muscle activities of Sternocleidomastoid, upper trapezius, middle deltoid, extensor carpi radialis, brachioradialis, and abductor pollicis brevis were measured by Pocket EMG system. Result : CROM were significantly decreased in recommended posture in comparison with experimental posture (p<.05). In addition, muscle activity of middle deltoid was significantly decreased in recommended front posture. Moreover, brachioradialis and extensor carpi radialis showed the same result in recommended back posture (p<.05). Conclusion : Recommended posture is close to neutral posture and to reduce muscle fatigue and overuse, which may considered as a preventing musculoskeletal disorder and partially explain its efficacy in dental clinic.

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