Dynamics of contraction with special reference to calcium.
Using a new method for tetanizing frog ventricle muscle, the tension-length, force-load-velocity, and load-extension relations were determined under the steady active state. On the basis of these experiments a mechanochemical model was developed. Time courses of internal calcium concentrations, the rates of release, and uptake of calcium during isometric twitches were calculated by the model.
D000818:Animals; D001001:Anura; D002118:Calcium / Q000378:metabolism*; D004548:Elasticity; D007700:Kinetics; D008433:Mathematics; D008954:Models, Biological; D009200:Myocardial Contraction; D009206:Myocardium / Q000378:metabolism
D002118:Calcium