| 摘要 |
A method and an apparatus for measuring muscle fatigue is disclosed, in which electromyographic (EMG) signals are measured from a muscle in order to determine the fatigue level of the muscle. The invention comprises the steps of: receiving an EMG input signal from electrodes attached to the muscle to be analyzed; sampling said input signal to a sequence of discrete signal values; calculating the difference between several pairs of successive sample values; depending on the sign of the calculated difference, adding cumulatively the sampled values in a first or second accumulator means, and said difference values in a third accumulator means; obtaining separate sequences of quotients between the values representative of the output from said third accumulator means and values representative of the outputs from said first and second accumulator means, respectively; obtaining for each of said sequences a single quotient having a weighted value representative of a number of said quotients; multiplying the obtained weighted values with each other in order to obtain an index indicative of fatigue during said time period in said muscle.
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