1) Identify and perform a standardized isometric procedure for a defined time period.
2) The SEMG activity is averaged for a fixed time period to find the highest AVERAGE peak value. This mean becomes the normalization reference value for the muscle.
3) Perform the evaluation task. The clinical task mean is divided by the MVIC mean and multiplied by 100 to find the Normalized Value. Baseline Value ÷ Maximal Effort × 100 = Normalized Value (expressed in %MVC). For more information, please refer to the ABC of EMG Manual section Signal Processing – Amplitude Normalization, pages 30-35.