caa a22 4500 467941467 CHVBK 20180406153014.0 cr unu---uuuuu 170328e20060101xx s 000 0 eng 10.1007/s00421-004-1215-1 doi (NATIONALLICENCE)springer-10.1007/s00421-004-1215-1 Motor unit action potential rate and motor unit action potential shape properties in subjects with work-related chronic pain [Elektronische Daten] [Laura Kallenberg, Hermie Hermens] The objective of this study was to investigate differences in motor control of the trapezius muscle in cases with work-related chronic pain, compared to healthy controls. Ten cases with chronic pain and 13 controls participated in the study. Electromyographic (EMG) signals were recorded from the upper trapezius during five computer work-related tasks. Motor control was assessed using global root-mean-square value (RMSG), motor unit action potential (MUAP) rate (number of MUAPs per second, MR) and two MUAP shape parameters, i.e. root-mean-square (RMSMUAP) and median frequency (FMEDMUAP). MR and FMEDMUAP were higher for the cases than for the controls (P<0.05). RMSMUAP showed a trend for higher values in the chronic pain group (P<0.13), whereas RMSG did not show a significant difference between the groups. The higher MR, FMEDMUAP and the trend for higher RMSMUAP suggest that more high-threshold MUs contribute to low-level computer work-related tasks in chronic pain cases. Additionally, the results suggest that the input of the central nervous system to the muscle is higher in the cases with chronic pain. Springer-Verlag, 2004 Chronic pain nationallicence Motor unit action potential rate nationallicence Surface EMG nationallicence Motor control nationallicence Kallenberg Laura Roessingh Research and Development, P.O. Box 310, 7500 AH, Enschede, The Netherlands aut Hermens Hermie Roessingh Research and Development, P.O. Box 310, 7500 AH, Enschede, The Netherlands aut European Journal of Applied Physiology Springer-Verlag 96/2(2006-01-01), 203-208 1439-6319 96:2<203 2006 96 421 https://doi.org/10.1007/s00421-004-1215-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00421-004-1215-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kallenberg Laura Roessingh Research and Development, P.O. Box 310, 7500 AH, Enschede, The Netherlands aut NATIONALLICENCE 700 1- Hermens Hermie Roessingh Research and Development, P.O. Box 310, 7500 AH, Enschede, The Netherlands aut NATIONALLICENCE 773 0- European Journal of Applied Physiology Springer-Verlag 96/2(2006-01-01), 203-208 1439-6319 96:2<203 2006 96 421 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer