| Establishment of Clouds of Envelope Amplitude-Activity and Number of Small Segments-Activity in Normal Adults. |
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Choi, Won Ah , Lee, Sang Chul , Park, Yoon Ghil , Moon, Jae Ho , Kim, Wan , Lee, Soo Hyun |
1Department of Rehabilitation Medicine, Rehabilitation Institute of Muscular Disease, Yonsei University College of Medicine, Korea. drtlc@yumc.yonsei.ac.kr
2Gangnam Community Health Center, Korea. |
| 정상 성인의 한계 진폭-활성도와 소분절 수-활성도의 영역 설정 |
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최원아, 이상철, 박윤길, 문재호, 김완, 이수현1 |
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연세대학교 의과대학 재활의학교실 및 근육병 재활연구소, 1강남구 보건소 |
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| Abstract |
Objective
To establish the envelope amplitude-activity and number of small segments (NSS)-activity clouds of normal adults using the interference pattern of quantitative electromyography (EMG).
Method
Healthy adults whose ages were from 20 to 59 years old participated in this study. Using quantitative EMG of the biceps brachii, vastus medialis, and tibialis anterior muscle, the interference patterns were analyzed. The interference patterns were measured at three to five different force levels, ranging from minimum to maximum, and recorded at least 20 epochs at each muscle.
Results
The envelope amplitude-activity and NSS-activity ratio of the biceps brachii, vastus medialis, and tibialis anterior muscles were obtained in males and females. The establishment of normal clouds of gender related envelope amplitude-activity and NSS-activity were obtained.
Conclusion
By using the above normal clouds of envelope amplitude-activity and NSS-activity, automatic interference pattern analysis may contribute to early diagnosis and detection of progress of myopathy and neuropathy. (J Korean Acad Rehab Med 2007; 31: 213-219) |
| Key Words:
Activity, Envelope amplitude, Interference pattern, Number of small segments, Quantitative EMG |
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