Fig. 2
From: Rat superficial masseter operates at long lengths during biting
Influence of food hardness on muscle recruitment and force production. During rat incisor biting, greater food hardness increases superficial masseter (A) electromyographic recruitment, and (B) force production. (C) A strong relationship between EMG intensity and force production exists across rats (symbols) and food hardnesses (colors) (For Linear Least-Squares regression results, see methods. LCL, UCL, Lower and Upper Confidence Limits; LPL, UPL, Lower and Upper Probability Limits; ME, Model Estimate).
