Method

Normalization to a standardized isometric maximum voluntary contraction (MVC) when it is not possible to match all aspects of the task of interest (e.g., multiple tasks or muscles investigated, complex task)

Normalization to an isometric MVC that is standardized but not matched to the task under investigation. This method includes:

  • Non-specific isometric maximal voluntary contraction: The peak EMG amplitude from a maximal isometric voluntary contraction, usually obtained from a mid-range joint angle (not as the task of interest).

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  • Maximal voluntary contractions do not involve the synchronised discharge of many motor units, which is necessary to estimate evoked responses recorded from muscles.

  • There are no caveats. Simply, it’s not possible to interpret the data.

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If you found this tool helpful in planning or conducting your experiment, please consider citing the original publication:

Besomi, M., Hodges, P. W., Van Dieën, J., et al (2020). Consensus for experimental design in electromyography (CEDE) project: Amplitude normalization matrix. Journal of Electromyography and Kinesiology, 53, 102438.

https://doi.org/10.1016/j.jelekin.2020.102438