Mechanochemical model for myosin II dimer that can explain the spontaneous oscillatory contraction of muscle
Sun Wei1, 2, Zhao Xiao-Yang3, 4, Zhang Jun-Ping1, Tala 1, Guo Wei-Sheng1, †
       

(color online) The time-dependent sarcomere length during isotonic SPOC under different external loads. The average external loads are (a) 19 pN, (b) 21 pN, and (c) 23.5 pN. The initial values of xi and y are the same as those in Fig. 3.