We usually take the sample size from previous literature while working on muscle function assessment using some non-invasive technique like electromyography or mechanomyography. Any one knows about some statistical method to calculate the sample size in such studies?
Or is it adequate to follow the literature for this purpose?
Dear Irsa,
I suggest to use G*power to do sample size calculations. http://www.gpower.hhu.de
It's a free software, relatively easy to use where you can take several design specifications into account. This is a scientifical way to calculate the sample size. Good luck and best regards
Erich
I am with the previous literature, however, some samples that do not contain large fluctuations in the range between the maximum and the minimum acceptable threshold, it is possible to take small samples
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