A modified distance variable for the Hill formalism for kinetic models of muscle contraction.
D000199:Actins / Q000502:physiology; D007700:Kinetics; D008954:Models, Biological; D009119:Muscle Contraction; D009218:Myosins / Q000502:physiology; D011485:Protein Binding; D011487:Protein Conformation; D013816:Thermodynamics
D000199:Actins; D009218:Myosins