Earticle

초록

영어

Purpose: The study compared the muscle activity and ratio of upper trapezius (UT) to lower trapezius (LT) activity between acute and chronic whiplash-associated disorder (WAD) patients. Methods: Twelve healthy (male: 7), 14 acute WAD (male: 7), and 11 chronic WAD (male: 3) volunteers participated in this study. Electromyography using a surface EMG recorded the activity of the upper trapezius and lower trapezius of both shoulders (dominant and non-dominant) during 120° elevation when standing and shoulder depression when sitting. The testing order was selected randomly. Subjects were asked to maintain each experimental position for 5 seconds at end range. EMG activity was normalized using the maximal voluntary isometric contraction (MVIC) elicited using a manual muscle-testing technique. One-way repeated measures analysis of variance (ANOVA) was used to compare the average root mean square (RMS) value of EMG activity for each condition. Results: The EMG activity of the dominant UT for chronic WAD subjects was significantly higher than for acute WAD subjects during 120° elevation (p<.05). The EMG activity of the dominant LT for acute WAD subjects was significantly lower than for the control group (p<.05) during 120° elevation. The EMG activity of the dominant LT for WAD patients was significantly lower than for the control group during shoulder depression (p<.05), and the chronic WAD patients scored significantly the lowest (p<.01). The dominant UT/LT for chronic WAD patients was significantly higher than the ratio for acute WAD subjects during shoulder depression (p<.05); this result was higher than for the control group (p<.01). The non-dominant UT/LT (ratio) for chronic WAD patients was significantly higher than the ratio for acute WAD subjects during shoulder depression (p<.05). Conclusion: The UT for chronic WAD subjects was hyperactive when compared to the acute WAD subjects, and the was hypoactive for both acute and chronic patients, therefore intra-trapezius imbalance was more prevalent during shoulder depression.

목차

Abstract
 Ⅰ. 서론
 Ⅱ. 연구방법
  1. 연구대상자와 연구기간
  2. 실험 방법
 Ⅲ. 연구결과
  1. 연구대상자의 일반적 특성
  2. 상지 거상 동작 시 세 군간에 상・하승모근의 근활성도 비교
  3. 상지 하강 동작 시 세 군간에 상・하승모근의 근활성도 비교
  4. 상지의 거상과 하강 동작 시 세 군간의 상·하승모근 근력비(muscle ratio)
 Ⅳ. 고찰
 Ⅴ. 결론
 참고문헌

키워드

저자

• 김상수 [ Sang-Su Kim | 한국정형외과 물리치료실 ]
• 김선엽 [ Suhn-Yeop Kim | 대전대학교 보건스포츠과학대학 물리치료학과 ] 교신저자

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  대한정형도수물리치료학회지 [The Journal of Korean Academy of Orthopedic Manual Physical Therapy]

• 간기

  연3회

• pISSN

  1226-3680

• eISSN

  2508-7282

• 수록기간

  1995~2025

• 등재여부

  KCI 등재

• 십진분류

  KDC 512 DDC 615