The Journal of Korean Physical Therapy

The Korean Society of Physical Therapy (대한물리치료학회)
권호 표지

The Utility of Measuring Paravertebral Muscle Function with 3D-NEWTON

3차원 뉴튼(3D-NEWTON)을 이용한 척추 주위근 기능 평가의 유용성

  • Han, Nami (Department of Physical Medicine and Rehabilitation, Inje University Busan Paik Hospital, College of Medicine, Inje University) ;
  • Kim, Hyun Dong (Department of Physical Medicine and Rehabilitation, Inje University Busan Paik Hospital, College of Medicine, Inje University) ;
  • Hwang, Ji Sun (Department of Physical Medicine and Rehabilitation, Inje University Busan Paik Hospital, College of Medicine, Inje University) ;
  • Bae, Jung-Hyuk (Department of Physical Therapy, Inje University Busan Paik Hospital)
  • 한나미 (인제대학교 부산백병원 재활의학과) ;
  • 김현동 (인제대학교 부산백병원 재활의학과) ;
  • 황지선 (인제대학교 부산백병원 재활의학과) ;
  • 배중혁 (인제대학교 부산백병원 물리치료실)
  • Received : 2013.01.10
  • Accepted : 2013.02.15
  • Published : 2013.02.25
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Abstract

Purpose: This study evaluated the validity of measuring paravertebral muscle function with 3D-NEWTON (Hanmed, Korea) by assessing the correlation between Biodex (Biodex, USA) and surface electromyography (EMG). Methods: Nineteen healthy adults participated. The function of their paravertebral muscle was measured in three ways. Maximum endurance time was measured in seconds when 3D-NEWTON was inclined forward for assessing extensor function, and inclined backward for assessing flexor function. Using surface EMG, maximum muscle activity was obtained from the eractor spinae and rectus abdominis during the 3D-NEWTON measurement. Maximum muscle activity was the mean activity from 10 seconds when the root mean squared firing data was highest. Through Biodex the peak torques of the extensor and flexor were measured during isometric exercises. The Spearman correlation coefficiencts from 3D-NEWTON, surface EMG, and Biodex were calculated. Results: The data from surface EMG and Biodex were statistically correlated when measured for flexor function, but less so for extensor function. In the case of 3D-NEWTON, the correlation coefficient with Biodex was 0.50 (p=0.05), while the coefficient with surface EMG was 0.53 (p=0.02) when measured for extensor function. Similarly, the correlation coefficienct with Biodex was 0.60 (p=0.01), while the surface EMG was 0.51 (p=0.03) for flexor function. Conclusion: 3D-NEWTON was a useful method for measuring paravertebral muscle function and can give helpful information for treating people with diseases associated with the lumbar spine.

Keywords

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