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Mean frequency (MNF) based EMG power spectrum analysis is presented to determine Salat associated muscle fatigue and indices. The main complexity of the parameter is a non-linear relationship between muscle fatigue and feature value, especially in large muscle and in cyclic dynamic contraction which is solved by this proposal. By this work, we can compute frequency dependent MNF for dynamic contractions...
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 lnMFS and the percent drop in mean frequency MFD. The coefficient of variation CoV was used as the metric for...
A study was conducted to investigate the effect of upper limb muscles during repetitive task consisted of three hand-arm directions: 30??, 90??, and 150??. The aims of this study were to investigate muscle activity during repetitive task, to compare muscle activity between genders and to determine the correlation between muscles and time. Biceps brachii, anterior deltoid, and upper trapezius muscles...
Information relevant to back-pain treatment planning and outcome can be formulated by measuring the fatigue process of lumbar musculature. The clinical validation of an EMG median frequency technique for identifying lumbar muscle insufficiency in back patients and control subjects is presented. The results from two-group, stepwise discriminant analyses to identify low-back pain and non-low-back pain...
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