Intramuscular EMG amplitudes do not necessarily diverge from surface EMG amplitudes over time. Response to Letter to the Editor
Résumé
Fig. 1. Averaged EMG curves across all participants show that the surface and intramuscular EMG activity patterns are comparable for all the muscles, i.e. the effect of footwear is substantially larger than the effect of EMG method. Note that for flexor hallucis longus intramuscular and surface EMG were measured from different muscle regions, and soleus surface EMG may be more prone to cross-talk than the gastrocnemii, so between-method comparisons may be most reliable in medial and lateral gastrocnemii.