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Journal of the Korean Academy of Rehabilitation Medicine 2007;31(3):333-340.
Analysis of Interference Pattern of Quantitative Electromyography in Early Adolescence.
Park, Ki Deok , Lee, Sang Chul , Park, Yoon Ghil , Moon, Jae Ho
Department of Rehabilitation Medicine, Rehabilitation Institute of Muscular Disease, Yonsei University College of Medicine, Korea. drtlc@yumc.yonsei.ac.kr
정상 유소년의 정량적 근전도의 간섭양상 분석
박기덕, 이상철, 박윤길, 문재호
연세대학교 의과대학 재활의학교실 및 근육병 재활연구소
Abstract
Objective
To establish turns-amplitude, activity-envelope amplitude and activity-number of small segements (NSS) clouds of normal early teens using interference pattern.
Method
Forty four healthy early adolescence from 11 to 15 years old participated in this study. The interference patterns were analyzed using quantitative electromyography of the biceps brachi and tibialis anterior muscles. The interference patterns were measured at 3 to 5 different force levels ranging from minimum to maximum and turns, mean amplitude, activity, envelope amplitude, NSS were analyzed. By turns/amplitude, activity/envelope amplitude and activity/ NSS ratio, normal clouds of gender related each parameters were obtained.
Results
The turns-amplitude, activity-envelope amplitude and activity-NSS ratio of the biceps brachii and tibialis anterior muscles were obtained. Normal clouds of gender related turns-amplitude, activity-envelope amplitude and activity-NSS for each muslces were established.
Conclusion
By using normal cloud patterns of turns- amplitude, activity-envelope amplitude and activity-NSS, automatic interference pattern analysis may contribute to diagnose neuromuscular disease in early adolescent patients. (J Korean Acad Rehab Med 2007; 31: 333-340)
Key Words: Quantitative electromyography, Interference pattern, Normal cloud, Early adolescence
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