Method

Normalization to the peak or mean EMG amplitude during the task investigated

Normalization to the mean/ peak EMG amplitude from the task under investigation, usually obtained from the peak over trial, but not from MVC trials. One value is used, not a separate value from each trial. This method includes:

  • Peak or mean can be derived from data acquired separately from multiple trials, or from the ensemble average of the multiple trials.

    • View full definition

  • All the muscles that have a potential involvement in the task, will be included in the synergy.

  • That method could potentially bias the synergy extraction toward a muscle with a consistently low activation level throughout the task; this is because its normalised EMG amplitude would be close to 1 throughout the task.

  • No information about relative activation level can be deduced by the weights of the muscles within each synergy.

Coming Soon

Back

We value your feedback

Let us know how helpful you found the recommendations above and how we can improve:

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