| Autor: |
Zaman SA; Department of Electrical and Computer Engineering, Institute of Biomedical Engineering, University of New Brunswick, Fredericton, NB E3B5A3, Canada. sabeer.zaman@unb.ca, Macisaac DT, Parker PA |
| Jazyk: |
angličtina |
| Zdroj: |
Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference [Annu Int Conf IEEE Eng Med Biol Soc] 2011; Vol. 2011, pp. 3857-60. |
| DOI: |
10.1109/IEMBS.2011.6090958 |
| Abstrakt: |
The repeatability of a spectral surface electromyography-based fatigue assessment strategy was evaluated. Variability of two fatigue-trend tracking parameters was used as an indicator for repeatability. The parameters were the natural logarithm of the slope of linear mean frequency decline lnMF(S) and the percent drop in mean frequency MF(D). The coefficient of variation CoV was used as the metric for repeatability, representing the ratio of the standard deviation to the mean of repeated measures from the same individual. Five weekly fatigue tests on the right biceps brachii were conducted on 11 participants with a fatiguing regime comprising of alternating static and cyclic segments, collecting seven channels of differential EMG. The resulting 95% confidence intervals of the CoV were: 15.38-24.87% (Static lnMF(S)), 12.21-23.36% (Cyclic lnMF(S)), 13.18-21.85% (Static MF(D)), and 12.37-24.39% (Cyclic MF(D)). There was no statistically significant difference in repeatability between any combination of parameter and types of motion. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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