Earticle

초록

영어

To determine proper hand load standards, we examined the influence of external load on the kinematics (head-neck and scapular angular displacements) and onset time of the neck muscles during shoulder forward flexion. Six adults (age, 21–25 years) performed shoulder forward flexion. The hand was loaded with 0kg, 1kg, or 5% of the participant’s body weight and the kinematic data and muscle onset time were obtained. The head-neck angular displacements were 11.06±5.4°(0kg), 11.9±3.3°(1kg), and 10.3±0.7° (5% of body weight), while the mean scapular rotations were 19.0±7.0°, 19.2±6.2°, and 17.0±6.5°, respectively. The average amounts of retraction and protraction were 16.7±8.4°, 16.2±9.8°, and 14.7±9.5°, while the mean scapular tilts were 32.2±8.7°, 34.9±10.0°, and 29.5±15.0°, respectively. The addition of an external load normalized to 5% of each participant’s body weight altered the head- neck and scapular kinematics as well as the superficial neck muscle onset time. Our findings suggest that the application of a hand load during shoulder flexion must be individualized according to neck and scapular motion as well as muscle onset time.

목차

Abstract
 Ⅰ. 연구 배경
 Ⅱ. 연구 방법
  1. 연구 대상자
  2. 실험 장비 및 측정 변인
  3. 실험절차
  4. 자료분석
 Ⅲ. 연구 결과
  1. 하중의 증가에 따른 머리-목과 어깨뼈의 운동형 상학적 요소
  2. 하중의 증가에 따른 표층 목 근육의 수축 개시 시간
 Ⅳ. 논의
 Ⅴ. 결론
 참고문헌

키워드

저자

• 김태영 [ TaeYeong Kim | 고려대학교 일반대학원 보건과학과 ]
• 김은지 [ Eunjii Kim | 고려대학교 보건과학대학 물리치료학과 ]
• 김수정 [ SooJeong Kim | 고려대학교 보건과학대학 물리치료학과 ]
• 김은솜 [ Eunsom Kim | 고려대학교 보건과학대학 물리치료학과 ]
• 윤범철 [ BumChul Yoon | 고려대학교 일반대학원 보건과학과, 고려대학교 보건과학대학 물리치료학과 ] 교신저자

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  정형스포츠물리치료학회지 [Archives of Orthopedic and Sports Physical Therapy]

• 간기

  반년간

• pISSN

  1738-5946

• 수록기간

  2005~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 517 DDC 613