Method

Normalization to the maximum voluntary contraction (MVC) in the same task/context as the task of interest (with matched contraction type*, muscle length/joint angle, and/or velocity) *isometric; concentric; eccentric

Normalization to an MVC that is matched to the task in terms of joint angle/muscle length, contraction type, and/or joint angular velocity. This method includes:

  • Angle and angular velocity specific maximal dynamic/isokinetic/ isometric voluntary contraction: The peak EMG amplitude(s) from a maximal voluntary contraction with the same muscle action, joint angle, muscle length, angular velocity or rate of change of muscle length as the task of interest.
  • Could require tailored MVCs for each task or muscle studied, or a maximal dynamic task to normalize specific phases/angles of the muscle(s) studied.

    • View full definition

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

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

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