Reliability of quantitative EMG analysis of the extensor carpi radialis muscle
| Autor: | Kristina M. Calder, Daniel W. Stashuk, Linda McLean, Michael J. Agnew |
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| Rok vydání: | 2008 |
| Předmět: |
Adult
Male Intraclass correlation Isometric exercise Electromyography Quantitative EMG analysis Extensor carpi radialis muscle Statistics medicine Humans Muscle Skeletal Reliability (statistics) Mathematics Motor Neurons Observer Variation medicine.diagnostic_test General Neuroscience Reproducibility of Results Hand Motor unit Data Interpretation Statistical Female Analysis of variance Algorithms Biomedical engineering |
| Zdroj: | Journal of Neuroscience Methods. 168:483-493 |
| ISSN: | 0165-0270 |
| DOI: | 10.1016/j.jneumeth.2007.10.008 |
| Popis: | This study investigated the within-subject, intra- and inter-operator reliability of quantitative electromyographic (EMG) analysis using decomposition-based quantitative electromyography (DQEMG). Needle and surface-detected EMG signals were collected during low-level isometric contractions of the extensor carpi radialis (ECR) muscle. DQEMG was used to extract needle-detected motor unit potential (MUP) trains and surface-detected MUPs (SMUPs) associated with each train. Two independent experienced operators re-decomposed and processed the MUP data on two separate occasions. One-way analyses of variance (ANOVA) were performed to identify within-subject differences (test–retest, n = 6), and operator and trial differences (intra- and inter-operator, n = 20) for the MUP morphological variables. The within-subject reliability, as well as the intra- and inter-operator reliability were estimated using intraclass correlation coefficients (ICCs). The 95% limits of agreement were calculated to measure within-subject and between operator agreements. MUP durations were found to be significantly different between days (p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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