Methodological variance associated with normalization of occupational upper trapezius EMG using sub-maximal reference contractions
To quantify the variance introduced to trapezius electromyography (EMG) through normalization by sub-maximal reference voluntary exertions (RVE), and to investigate the effect of increased normalization efforts as compared to other changes in data collection strategy on the precision of occupational...
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| Published in | Journal of electromyography and kinesiology Vol. 19; no. 3; pp. 416 - 427 |
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| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
England
Elsevier Ltd
01.06.2009
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1050-6411 1873-5711 1873-5711 |
| DOI | 10.1016/j.jelekin.2007.11.004 |
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| Abstract | To quantify the variance introduced to trapezius electromyography (EMG) through normalization by sub-maximal reference voluntary exertions (RVE), and to investigate the effect of increased normalization efforts as compared to other changes in data collection strategy on the precision of occupational EMG estimates.
Women performed four RVE contractions followed by 30
min of light, cyclic assembly work on each of two days. Work cycle EMG was normalized to each of the RVE trials and seven exposure parameters calculated. The proportions of exposure variance attributable to subject, day within subject, and cycle and normalization trial within day were determined. Using this data, the effect on the precision of the exposure mean of altering the number of subjects, days, cycles and RVEs during data collection was simulated.
For all exposure parameters a unique component of variance due to normalization was present, yet small: less than 4.4% of the total variance. The resource allocation simulations indicated that marginal improvements in the precision of a group exposure mean would occur above three RVE repeats for EMG collected on one day, or beyond two RVEs for EMG collected on two or more days. |
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| AbstractList | To quantify the variance introduced to trapezius electromyography (EMG) through normalization by sub-maximal reference voluntary exertions (RVE), and to investigate the effect of increased normalization efforts as compared to other changes in data collection strategy on the precision of occupational EMG estimates.
Women performed four RVE contractions followed by 30 min of light, cyclic assembly work on each of two days. Work cycle EMG was normalized to each of the RVE trials and seven exposure parameters calculated. The proportions of exposure variance attributable to subject, day within subject, and cycle and normalization trial within day were determined. Using this data, the effect on the precision of the exposure mean of altering the number of subjects, days, cycles and RVEs during data collection was simulated.
For all exposure parameters a unique component of variance due to normalization was present, yet small: less than 4.4% of the total variance. The resource allocation simulations indicated that marginal improvements in the precision of a group exposure mean would occur above three RVE repeats for EMG collected on one day, or beyond two RVEs for EMG collected on two or more days. To quantify the variance introduced to trapezius electromyography (EMG) through normalization by sub-maximal reference voluntary exertions (RVE), and to investigate the effect of increased normalization efforts as compared to other changes in data collection strategy on the precision of occupational EMG estimates. Women performed four RVE contractions followed by 30 min of light, cyclic assembly work on each of two days. Work cycle EMG was normalized to each of the RVE trials and seven exposure parameters calculated. The proportions of exposure variance attributable to subject, day within subject, and cycle and normalization trial within day were determined. Using this data, the effect on the precision of the exposure mean of altering the number of subjects, days, cycles and RVEs during data collection was simulated. For all exposure parameters a unique component of variance due to normalization was present, yet small: less than 4.4% of the total variance. The resource allocation simulations indicated that marginal improvements in the precision of a group exposure mean would occur above three RVE repeats for EMG collected on one day, or beyond two RVEs for EMG collected on two or more days. AbstractObjectivesTo quantify the variance introduced to trapezius electromyography (EMG) through normalization by sub-maximal reference voluntary exertions (RVE), and to investigate the effect of increased normalization efforts as compared to other changes in data collection strategy on the precision of occupational EMG estimates. MethodsWomen performed four RVE contractions followed by 30 min of light, cyclic assembly work on each of two days. Work cycle EMG was normalized to each of the RVE trials and seven exposure parameters calculated. The proportions of exposure variance attributable to subject, day within subject, and cycle and normalization trial within day were determined. Using this data, the effect on the precision of the exposure mean of altering the number of subjects, days, cycles and RVEs during data collection was simulated. ResultsFor all exposure parameters a unique component of variance due to normalization was present, yet small: less than 4.4% of the total variance. The resource allocation simulations indicated that marginal improvements in the precision of a group exposure mean would occur above three RVE repeats for EMG collected on one day, or beyond two RVEs for EMG collected on two or more days. To quantify the variance introduced to trapezius electromyography (EMG) through normalization by sub-maximal reference voluntary exertions (RVE), and to investigate the effect of increased normalization efforts as compared to other changes in data collection strategy on the precision of occupational EMG estimates.OBJECTIVESTo quantify the variance introduced to trapezius electromyography (EMG) through normalization by sub-maximal reference voluntary exertions (RVE), and to investigate the effect of increased normalization efforts as compared to other changes in data collection strategy on the precision of occupational EMG estimates.Women performed four RVE contractions followed by 30 min of light, cyclic assembly work on each of two days. Work cycle EMG was normalized to each of the RVE trials and seven exposure parameters calculated. The proportions of exposure variance attributable to subject, day within subject, and cycle and normalization trial within day were determined. Using this data, the effect on the precision of the exposure mean of altering the number of subjects, days, cycles and RVEs during data collection was simulated.METHODSWomen performed four RVE contractions followed by 30 min of light, cyclic assembly work on each of two days. Work cycle EMG was normalized to each of the RVE trials and seven exposure parameters calculated. The proportions of exposure variance attributable to subject, day within subject, and cycle and normalization trial within day were determined. Using this data, the effect on the precision of the exposure mean of altering the number of subjects, days, cycles and RVEs during data collection was simulated.For all exposure parameters a unique component of variance due to normalization was present, yet small: less than 4.4% of the total variance. The resource allocation simulations indicated that marginal improvements in the precision of a group exposure mean would occur above three RVE repeats for EMG collected on one day, or beyond two RVEs for EMG collected on two or more days.RESULTSFor all exposure parameters a unique component of variance due to normalization was present, yet small: less than 4.4% of the total variance. The resource allocation simulations indicated that marginal improvements in the precision of a group exposure mean would occur above three RVE repeats for EMG collected on one day, or beyond two RVEs for EMG collected on two or more days. OBJECTIVES: To quantify the variance introduced to trapezius electromyography (EMG) through normalization by sub-maximal reference voluntary exertions (RVE), and to investigate the effect of increased normalization efforts as compared to other changes in data collection strategy on the precision of occupational EMG estimates. METHODS: Women performed four RVE contractions followed by 30 min of light, cyclic assembly work on each of two days. Work cycle EMG was normalized to each of the RVE trials and seven exposure parameters calculated. The proportions of exposure variance attributable to subject, day within subject, and cycle and normalization trial within day were determined. Using this data, the effect on the precision of the exposure mean of altering the number of subjects, days, cycles and RVEs during data collection was simulated. RESULTS: For all exposure parameters a unique component of variance due to normalization was present, yet small: less than 4.4% of the total variance. The resource allocation simulations indicated that marginal improvements in the precision of a group exposure mean would occur above three RVE repeats for EMG collected on one day, or beyond two RVEs for EMG collected on two or more days. Objectives: To quantify the variance introduced to trapezius electromyography (EMG) through normalization by sub-maximal reference voluntary exertions (RVE), and to investigate the effect of increased normalization efforts as compared to other changes in data collection strategy on the precision of occupational EMG estimates. Methods: Women performed four RVE contractions followed by 30min of light, cyclic assembly work on each of two days. Work cycle EMG was normalized to each of the RVE trials and seven exposure parameters calculated. The proportions of exposure variance attributable to subject, day within subject, and cycle and normalization trial within day were determined. Using this data, the effect on the precision of the exposure mean of altering the number of subjects, days, cycles and RVEs during data collection was simulated. Results: For all exposure parameters a unique component of variance due to normalization was present, yet small: less than 4.4% of the total variance. The resource allocation simulations indicated that marginal improvements in the precision of a group exposure mean would occur above three RVE repeats for EMG collected on one day, or beyond two RVEs for EMG collected on two or more days. |
| Author | Dempsey, Patrick G. Mathiassen, Svend Erik Jackson, Jennie A. |
| Author_xml | – sequence: 1 givenname: Jennie A. surname: Jackson fullname: Jackson, Jennie A. email: ja2jacks@ahsmail.uwaterloo.ca organization: Department of Kinesiology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, Canada N2L 3G1 – sequence: 2 givenname: Svend Erik surname: Mathiassen fullname: Mathiassen, Svend Erik organization: Centre for Musculoskeletal Research, University of Gävle, SE-80176 Gävle, Sweden – sequence: 3 givenname: Patrick G. surname: Dempsey fullname: Dempsey, Patrick G. organization: Liberty Mutual Research Institute for Safety, Hopkinton, MA 01748, USA |
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| Cites_doi | 10.2307/1268415 10.1093/annhyg/35.1.61 10.1016/1050-6411(95)00011-9 10.1016/j.ergon.2003.10.007 10.1016/0268-0033(90)90042-5 10.1016/0169-8141(91)90016-F 10.1080/0014013032000121651 10.1007/s004200050175 10.5271/sjweh.384 10.1016/S1050-6411(99)00030-9 10.1080/02678370210141530 10.1093/annhyg/37.3.253 10.1016/0169-8141(89)90024-3 10.1007/BF00626762 10.2340/165019771993131137 10.1016/S1050-6411(01)00028-1 10.1016/1050-6411(94)00014-X 10.1080/0014013031000090125 10.1080/001401397187829 10.1080/00140139608964499 10.1016/1050-6411(95)00005-4 10.1093/annhyg/meg021 10.1016/j.jelekin.2003.12.003 10.1016/j.apergo.2006.04.006 10.1080/00140139108967318 |
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| Keywords | Exposure variability Variance components Assembly work Trapezius EMG |
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| References | Burdorf, Van Tongeren (bib5) 2003; 47 Balogh, Hansson, Ohlsson, Stromberg, Skerfving (bib3) 1999; 25 Nordander, Balogh, Mathiassen, Ohlsson, Unge, Skerfving (bib21) 2004; 14 Mathiassen, Burdorf, van der Beek (bib16) 2002; 12 Nakata, Hagner, Jonsson (bib20) 1993; 25 Attebrant, Mathiassen, Winkel (bib2) 1995; 5 Trask C, Koehoorn M, Village J, Morrison J, Teschke K, Ploger J, et al. Evaluating full-shift low back EMG and posture measurement for epidemiological studies. In: International ergonomics association (IEA) – 16th world congress on ergonomics, Maastricht, The Netherlands; 2006. Kromhout, Symanski, Rappaport (bib13) 1993 Rissén, Melin, Sandsjo, Dohns, Lundberg (bib23) 2002; 16 Takala, Viikari-juntura (bib26) 1991; 8 Yang, Winter (bib30) 1983; 64 Möller, Mathiassen, Franzon, Kihlberg (bib19) 2004; 47 Mathiassen (bib14) 2006; 37 Searle, Casella, McCulloch (bib24) 2006 Zandin (bib32) 1990 Rappaport (bib22) 1991; 35 Hansson, Nordander, Asterland, Ohlsson, Stromberg, Skerfving (bib10) 2000; 10 Jørgensen, Fallentin, Sidenius (bib12) 1989; 3 Åkesson, Hansson, Balogh, Moritz, Skerfving (bib1) 1997; 69 Fjellman-Wiklund, Grip, Karlsson, Sundelin (bib8) 2004; 33 Bao, Mathiassen, Winkel (bib4) 1995; 5 Hammarskjöld, Harms-Ringdahl, Ekholm (bib9) 1990; 5 Jonsson (bib11) 1982; 11 Yang, Winter (bib31) 1984; 65 Veiersted (bib29) 1996; 39 Swallow, Monahan (bib25) 1984; 26 Efron, Tibshirani (bib6) 1993 Mathiassen, Moller, Forsman (bib17) 2003; 46 Mathiassen, Winkel, Hägg (bib15) 1995; 5 Feng, Grooten, Wretenberg, Arborelius (bib7) 1997; 40 Mirka (bib18) 1991; 34 Veiersted (bib28) 1991; 62 Yang (10.1016/j.jelekin.2007.11.004_bib31) 1984; 65 Searle (10.1016/j.jelekin.2007.11.004_bib24) 2006 Veiersted (10.1016/j.jelekin.2007.11.004_bib29) 1996; 39 Hansson (10.1016/j.jelekin.2007.11.004_bib10) 2000; 10 Kromhout (10.1016/j.jelekin.2007.11.004_bib13) 1993 Mathiassen (10.1016/j.jelekin.2007.11.004_bib15) 1995; 5 Attebrant (10.1016/j.jelekin.2007.11.004_bib2) 1995; 5 Åkesson (10.1016/j.jelekin.2007.11.004_bib1) 1997; 69 Burdorf (10.1016/j.jelekin.2007.11.004_bib5) 2003; 47 Efron (10.1016/j.jelekin.2007.11.004_bib6) 1993 Hammarskjöld (10.1016/j.jelekin.2007.11.004_bib9) 1990; 5 Mathiassen (10.1016/j.jelekin.2007.11.004_bib17) 2003; 46 Fjellman-Wiklund (10.1016/j.jelekin.2007.11.004_bib8) 2004; 33 Rissén (10.1016/j.jelekin.2007.11.004_bib23) 2002; 16 Mathiassen (10.1016/j.jelekin.2007.11.004_bib14) 2006; 37 Takala (10.1016/j.jelekin.2007.11.004_bib26) 1991; 8 Swallow (10.1016/j.jelekin.2007.11.004_bib25) 1984; 26 Yang (10.1016/j.jelekin.2007.11.004_bib30) 1983; 64 Balogh (10.1016/j.jelekin.2007.11.004_bib3) 1999; 25 Veiersted (10.1016/j.jelekin.2007.11.004_bib28) 1991; 62 10.1016/j.jelekin.2007.11.004_bib27 Nordander (10.1016/j.jelekin.2007.11.004_bib21) 2004; 14 Mathiassen (10.1016/j.jelekin.2007.11.004_bib16) 2002; 12 Feng (10.1016/j.jelekin.2007.11.004_bib7) 1997; 40 Nakata (10.1016/j.jelekin.2007.11.004_bib20) 1993; 25 Jonsson (10.1016/j.jelekin.2007.11.004_bib11) 1982; 11 Zandin (10.1016/j.jelekin.2007.11.004_bib32) 1990 Bao (10.1016/j.jelekin.2007.11.004_bib4) 1995; 5 Rappaport (10.1016/j.jelekin.2007.11.004_bib22) 1991; 35 Jørgensen (10.1016/j.jelekin.2007.11.004_bib12) 1989; 3 Mirka (10.1016/j.jelekin.2007.11.004_bib18) 1991; 34 Möller (10.1016/j.jelekin.2007.11.004_bib19) 2004; 47 |
| References_xml | – volume: 34 start-page: 343 year: 1991 end-page: 352 ident: bib18 article-title: The quantification of EMG normalization error publication-title: Ergonomics – volume: 3 start-page: 243 year: 1989 end-page: 248 ident: bib12 article-title: The strain on the shoulder and neck muscles during letter sorting publication-title: Int J Ind Ergon – year: 1990 ident: bib32 article-title: Work measurement systems – volume: 33 start-page: 347 year: 2004 end-page: 356 ident: bib8 article-title: EMG trapezius muscle activity pattern in string players: Part I – Is there variability in the playing technique? publication-title: Int J Ind Ergon – volume: 5 start-page: 251 year: 1995 end-page: 257 ident: bib4 article-title: Normalizing upper trapezius EMG amplitude: comparison of different procedures publication-title: J Electromyogr Kinesiol – volume: 25 start-page: 57 year: 1999 end-page: 66 ident: bib3 article-title: Interindividual variation of physical load in a work task publication-title: Scand J Work Environ Health – volume: 40 start-page: 834 year: 1997 end-page: 848 ident: bib7 article-title: Effects of arm support on shoulder and arm muscle activity during sedentary work publication-title: Ergonomics – volume: 25 start-page: 131 year: 1993 end-page: 137 ident: bib20 article-title: Trapezius muscle pressure pain threshold and strain in the neck and shoulder regions during repetitive light work publication-title: Scand J Rehab Med – volume: 35 start-page: 61 year: 1991 end-page: 121 ident: bib22 article-title: Assessment of long-term exposures to toxic substances in air publication-title: Ann Occup Hyg – volume: 5 start-page: 81 year: 1990 end-page: 87 ident: bib9 article-title: Shoulder-arm muscular activity and reproducibility in carpenter’s work publication-title: Clin Biomech (Bristol, Avon) – volume: 37 start-page: 419 year: 2006 end-page: 427 ident: bib14 article-title: Diversity and variation in biomechanical exposure: what is it, and why would we like to know? publication-title: Appl Ergon – start-page: 253 year: 1993 end-page: 270 ident: bib13 article-title: A comprehensive evaluation of within- and between-worker components of occupational exposure to chemical agents publication-title: Ann Occup Hyg – volume: 12 start-page: 45 year: 2002 end-page: 57 ident: bib16 article-title: Statistical power and measurement allocation in ergonomic intervention studies assessing upper trapezius EMG amplitude. A case study of assembly work publication-title: J Electromyogr Kinesiol – year: 1993 ident: bib6 article-title: An introduction to the bootstrap – year: 2006 ident: bib24 article-title: Variance components Hoboken – volume: 47 start-page: 19 year: 2004 end-page: 40 ident: bib19 article-title: Job enlargement and mechanical exposure variability in cyclic assembly work publication-title: Ergonomics – volume: 16 start-page: 127 year: 2002 end-page: 137 ident: bib23 article-title: Psychophysical stress reactions, trapezius muscle activity, and neck and shoulder pain among female cashiers before and after introduction of job rotation publication-title: Work Stress – volume: 62 start-page: 91 year: 1991 end-page: 98 ident: bib28 article-title: The reproducibility of test contractions for calibration of electromyographic measurements publication-title: Eur J Appl Physiol Occup Physiol – volume: 5 start-page: 197 year: 1995 end-page: 226 ident: bib15 article-title: Normalization of surface EMG amplitude from the upper trapezius muscle in ergonomic studies. A review publication-title: J Electromyogr Kinesiol – volume: 26 start-page: 47 year: 1984 end-page: 57 ident: bib25 article-title: Monte Carlo comparison of ANOVA, MINQUE, REML, and ML estimators of variance components publication-title: Technometrics – volume: 64 start-page: 417 year: 1983 end-page: 420 ident: bib30 article-title: Electromyography reliability in maximal and submaximal isometric contractions publication-title: Arch Phys Med Rehabil – volume: 65 start-page: 517 year: 1984 end-page: 521 ident: bib31 article-title: Electromyographic amplitude normalization methods: improving their sensitivity as diagnostic tools in gait analysis publication-title: Arch Phys Med Rehabil – volume: 5 start-page: 245 year: 1995 end-page: 250 ident: bib2 article-title: Normalizing upper trapezius EMG amplitude: comparison of ramp and constant force procedures publication-title: J Electromyogr Kinesiol – volume: 39 start-page: 797 year: 1996 end-page: 807 ident: bib29 article-title: Reliability of myoelectric trapezius muscle activity in repetitive light work publication-title: Ergonomics – volume: 14 start-page: 443 year: 2004 end-page: 454 ident: bib21 article-title: Precision of measurements of physical workload during standardised manual handling. Part I: surface electromyography of m. trapezius, m. infraspinatus and the forearm extensors publication-title: J Electromyogr Kinesiol – volume: 69 start-page: 461 year: 1997 end-page: 474 ident: bib1 article-title: Quantifying work load in neck, shoulders and wrists in female dentists publication-title: Int Arch Occup Environ Health – volume: 47 start-page: 95 year: 2003 end-page: 99 ident: bib5 article-title: Commentary: variability in workplace exposures and the design of efficient measurement and control strategies publication-title: Ann Occup Hyg – volume: 10 start-page: 103 year: 2000 end-page: 115 ident: bib10 article-title: Sensitivity of trapezius electromyography to differences between work tasks-influence of gap definition and normalisation methods publication-title: J Electromyogr Kinesiol – volume: 46 start-page: 800 year: 2003 end-page: 824 ident: bib17 article-title: Variability in mechanical exposure within and between individuals performing a highly constrained industrial work task publication-title: Ergonomics – volume: 11 start-page: 73 year: 1982 end-page: 88 ident: bib11 article-title: Measurement and evaluation of local muscular strain in the shoulder during constrained work publication-title: J Hum Ergol (Tokyo) – volume: 8 start-page: 157 year: 1991 end-page: 164 ident: bib26 article-title: Muscular activity in simulated light work among subjects with frequent neck-shoulder pain publication-title: Int J Ind Ergon – reference: Trask C, Koehoorn M, Village J, Morrison J, Teschke K, Ploger J, et al. Evaluating full-shift low back EMG and posture measurement for epidemiological studies. In: International ergonomics association (IEA) – 16th world congress on ergonomics, Maastricht, The Netherlands; 2006. – year: 2006 ident: 10.1016/j.jelekin.2007.11.004_bib24 – volume: 26 start-page: 47 issue: 1 year: 1984 ident: 10.1016/j.jelekin.2007.11.004_bib25 article-title: Monte Carlo comparison of ANOVA, MINQUE, REML, and ML estimators of variance components publication-title: Technometrics doi: 10.2307/1268415 – volume: 35 start-page: 61 year: 1991 ident: 10.1016/j.jelekin.2007.11.004_bib22 article-title: Assessment of long-term exposures to toxic substances in air publication-title: Ann Occup Hyg doi: 10.1093/annhyg/35.1.61 – volume: 5 start-page: 251 issue: 4 year: 1995 ident: 10.1016/j.jelekin.2007.11.004_bib4 article-title: Normalizing upper trapezius EMG amplitude: comparison of different procedures publication-title: J Electromyogr Kinesiol doi: 10.1016/1050-6411(95)00011-9 – volume: 33 start-page: 347 year: 2004 ident: 10.1016/j.jelekin.2007.11.004_bib8 article-title: EMG trapezius muscle activity pattern in string players: Part I – Is there variability in the playing technique? publication-title: Int J Ind Ergon doi: 10.1016/j.ergon.2003.10.007 – volume: 5 start-page: 81 year: 1990 ident: 10.1016/j.jelekin.2007.11.004_bib9 article-title: Shoulder-arm muscular activity and reproducibility in carpenter’s work publication-title: Clin Biomech (Bristol, Avon) doi: 10.1016/0268-0033(90)90042-5 – volume: 8 start-page: 157 year: 1991 ident: 10.1016/j.jelekin.2007.11.004_bib26 article-title: Muscular activity in simulated light work among subjects with frequent neck-shoulder pain publication-title: Int J Ind Ergon doi: 10.1016/0169-8141(91)90016-F – year: 1993 ident: 10.1016/j.jelekin.2007.11.004_bib6 – volume: 11 start-page: 73 issue: 1 year: 1982 ident: 10.1016/j.jelekin.2007.11.004_bib11 article-title: Measurement and evaluation of local muscular strain in the shoulder during constrained work publication-title: J Hum Ergol (Tokyo) – volume: 47 start-page: 19 issue: 1 year: 2004 ident: 10.1016/j.jelekin.2007.11.004_bib19 article-title: Job enlargement and mechanical exposure variability in cyclic assembly work publication-title: Ergonomics doi: 10.1080/0014013032000121651 – volume: 69 start-page: 461 issue: 6 year: 1997 ident: 10.1016/j.jelekin.2007.11.004_bib1 article-title: Quantifying work load in neck, shoulders and wrists in female dentists publication-title: Int Arch Occup Environ Health doi: 10.1007/s004200050175 – volume: 25 start-page: 57 issue: 1 year: 1999 ident: 10.1016/j.jelekin.2007.11.004_bib3 article-title: Interindividual variation of physical load in a work task publication-title: Scand J Work Environ Health doi: 10.5271/sjweh.384 – volume: 10 start-page: 103 issue: 2 year: 2000 ident: 10.1016/j.jelekin.2007.11.004_bib10 article-title: Sensitivity of trapezius electromyography to differences between work tasks-influence of gap definition and normalisation methods publication-title: J Electromyogr Kinesiol doi: 10.1016/S1050-6411(99)00030-9 – volume: 16 start-page: 127 issue: 2 year: 2002 ident: 10.1016/j.jelekin.2007.11.004_bib23 article-title: Psychophysical stress reactions, trapezius muscle activity, and neck and shoulder pain among female cashiers before and after introduction of job rotation publication-title: Work Stress doi: 10.1080/02678370210141530 – ident: 10.1016/j.jelekin.2007.11.004_bib27 – start-page: 253 issue: 3 year: 1993 ident: 10.1016/j.jelekin.2007.11.004_bib13 article-title: A comprehensive evaluation of within- and between-worker components of occupational exposure to chemical agents publication-title: Ann Occup Hyg doi: 10.1093/annhyg/37.3.253 – year: 1990 ident: 10.1016/j.jelekin.2007.11.004_bib32 – volume: 3 start-page: 243 year: 1989 ident: 10.1016/j.jelekin.2007.11.004_bib12 article-title: The strain on the shoulder and neck muscles during letter sorting publication-title: Int J Ind Ergon doi: 10.1016/0169-8141(89)90024-3 – volume: 62 start-page: 91 year: 1991 ident: 10.1016/j.jelekin.2007.11.004_bib28 article-title: The reproducibility of test contractions for calibration of electromyographic measurements publication-title: Eur J Appl Physiol Occup Physiol doi: 10.1007/BF00626762 – volume: 25 start-page: 131 year: 1993 ident: 10.1016/j.jelekin.2007.11.004_bib20 article-title: Trapezius muscle pressure pain threshold and strain in the neck and shoulder regions during repetitive light work publication-title: Scand J Rehab Med doi: 10.2340/165019771993131137 – volume: 12 start-page: 45 issue: 1 year: 2002 ident: 10.1016/j.jelekin.2007.11.004_bib16 article-title: Statistical power and measurement allocation in ergonomic intervention studies assessing upper trapezius EMG amplitude. A case study of assembly work publication-title: J Electromyogr Kinesiol doi: 10.1016/S1050-6411(01)00028-1 – volume: 5 start-page: 197 year: 1995 ident: 10.1016/j.jelekin.2007.11.004_bib15 article-title: Normalization of surface EMG amplitude from the upper trapezius muscle in ergonomic studies. A review publication-title: J Electromyogr Kinesiol doi: 10.1016/1050-6411(94)00014-X – volume: 46 start-page: 800 issue: 8 year: 2003 ident: 10.1016/j.jelekin.2007.11.004_bib17 article-title: Variability in mechanical exposure within and between individuals performing a highly constrained industrial work task publication-title: Ergonomics doi: 10.1080/0014013031000090125 – volume: 65 start-page: 517 issue: 9 year: 1984 ident: 10.1016/j.jelekin.2007.11.004_bib31 article-title: Electromyographic amplitude normalization methods: improving their sensitivity as diagnostic tools in gait analysis publication-title: Arch Phys Med Rehabil – volume: 40 start-page: 834 year: 1997 ident: 10.1016/j.jelekin.2007.11.004_bib7 article-title: Effects of arm support on shoulder and arm muscle activity during sedentary work publication-title: Ergonomics doi: 10.1080/001401397187829 – volume: 39 start-page: 797 year: 1996 ident: 10.1016/j.jelekin.2007.11.004_bib29 article-title: Reliability of myoelectric trapezius muscle activity in repetitive light work publication-title: Ergonomics doi: 10.1080/00140139608964499 – volume: 5 start-page: 245 issue: 4 year: 1995 ident: 10.1016/j.jelekin.2007.11.004_bib2 article-title: Normalizing upper trapezius EMG amplitude: comparison of ramp and constant force procedures publication-title: J Electromyogr Kinesiol doi: 10.1016/1050-6411(95)00005-4 – volume: 47 start-page: 95 issue: 2 year: 2003 ident: 10.1016/j.jelekin.2007.11.004_bib5 article-title: Commentary: variability in workplace exposures and the design of efficient measurement and control strategies publication-title: Ann Occup Hyg doi: 10.1093/annhyg/meg021 – volume: 64 start-page: 417 issue: 9 year: 1983 ident: 10.1016/j.jelekin.2007.11.004_bib30 article-title: Electromyography reliability in maximal and submaximal isometric contractions publication-title: Arch Phys Med Rehabil – volume: 14 start-page: 443 issue: 4 year: 2004 ident: 10.1016/j.jelekin.2007.11.004_bib21 article-title: Precision of measurements of physical workload during standardised manual handling. Part I: surface electromyography of m. trapezius, m. infraspinatus and the forearm extensors publication-title: J Electromyogr Kinesiol doi: 10.1016/j.jelekin.2003.12.003 – volume: 37 start-page: 419 issue: 4 year: 2006 ident: 10.1016/j.jelekin.2007.11.004_bib14 article-title: Diversity and variation in biomechanical exposure: what is it, and why would we like to know? publication-title: Appl Ergon doi: 10.1016/j.apergo.2006.04.006 – volume: 34 start-page: 343 issue: 3 year: 1991 ident: 10.1016/j.jelekin.2007.11.004_bib18 article-title: The quantification of EMG normalization error publication-title: Ergonomics doi: 10.1080/00140139108967318 |
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| Snippet | To quantify the variance introduced to trapezius electromyography (EMG) through normalization by sub-maximal reference voluntary exertions (RVE), and to... AbstractObjectivesTo quantify the variance introduced to trapezius electromyography (EMG) through normalization by sub-maximal reference voluntary exertions... Objectives: To quantify the variance introduced to trapezius electromyography (EMG) through normalization by sub-maximal reference voluntary exertions (RVE),... OBJECTIVES: To quantify the variance introduced to trapezius electromyography (EMG) through normalization by sub-maximal reference voluntary exertions (RVE),... |
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| SubjectTerms | Adolescent Adult Assembly work Canada Electromyography - standards Exposure variability Female Humans Industry Middle Aged Muscle Contraction - physiology Muscle, Skeletal - physiology Occupational Medicine - standards Physical Exertion - physiology Physical Medicine and Rehabilitation Reference Values Reproducibility of Results Sensitivity and Specificity Trapezius EMG Variance components Young Adult |
| Title | Methodological variance associated with normalization of occupational upper trapezius EMG using sub-maximal reference contractions |
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