caa a22 4500 477036821 CHVBK 20180405111307.0 cr unu---uuuuu 170330e19960101xx s 000 0 eng 10.1007/BF02213560 doi (NATIONALLICENCE)springer-10.1007/BF02213560 Evaluating patterns of EMG amplitudes for trunk and neck muscles of patients and controls [Elektronische Daten] [V. Edgerton, Steven Wolf, Daniel Levendowski, Roland Roy] We used ratios of EMG amplitudes to characterize neural strategies of motoneuron recruitment for seven bilateral muscle groups of the back and neck during nine motor tasks to discriminate patients who sustained sprain/strain injuries (n=61) from a control population (n=400). Compensatory relationships between muscle pairs improved the predictability of hypoactivity or hyperactivity based on the probability distribution of muscle ratios obtained from uninjured subjects. We defined severity of hypoactive or hyperactive EMG activity by (a) the number of ratios that exceeded the normal range (95% confidence interval), (b) the compensatory relationship between these muscle pairs during each motor task, and (c) the consistency and frequency of hypoactivity or hyperactivity across nine motor tasks. Accuracy of the classification system was 88% with a specificity of 90% and a sensitivity of 70%. Between-session reliability for the overall classification of 40 controls and 44 patients was 93%. These results indicate that muscle ratios can objectively quantify altered strategies of motoneuron recruitment attributed to muscle trauma and pain common to spain/strain injuries. Plenum Publishing Corporation, 1996 surface electromyography nationallicence muscle dysfunction nationallicence muscle ratios nationallicence muscle patterns nationallicence back pain nationallicence Edgerton V. Department of Physiological Sciences, University of California, Los Angeles, Los Angeles, California aut Wolf Steven Department of Rehabilitation Medicine, Anatomy and Cell Biology, and Medicine, Emory University School of Medicine, Atlanta, Georgia aut Levendowski Daniel Myo Diagnostics, Inc., 3710 South Robertson Boulevard, Suite 212, 90232, Culver City, California aut Roy Roland Brain Research Institute, University of California, Los Angeles, Los Angeles, California aut International Journal of Rehabilitation and Health Kluwer Academic Publishers-Plenum Publishers 2/1(1996-01-01), 1-18 1068-9591 2:1<1 1996 2 10769 https://doi.org/10.1007/BF02213560 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02213560 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Edgerton V. Department of Physiological Sciences, University of California, Los Angeles, Los Angeles, California aut NATIONALLICENCE 700 1- Wolf Steven Department of Rehabilitation Medicine, Anatomy and Cell Biology, and Medicine, Emory University School of Medicine, Atlanta, Georgia aut NATIONALLICENCE 700 1- Levendowski Daniel Myo Diagnostics, Inc., 3710 South Robertson Boulevard, Suite 212, 90232, Culver City, California aut NATIONALLICENCE 700 1- Roy Roland Brain Research Institute, University of California, Los Angeles, Los Angeles, California aut NATIONALLICENCE 773 0- International Journal of Rehabilitation and Health Kluwer Academic Publishers-Plenum Publishers 2/1(1996-01-01), 1-18 1068-9591 2:1<1 1996 2 10769 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer