Figure 9
Mean (SD) change in select force time characteristics per parameter increment for three muscle models. The linear model (left column), the 2nd Order Nonlinear model (middle column), and the Hill Huxley nonlinear model (right column) are shown. Row 1 shows the time to peak tension (TPT) for the 5 Hz constant train (CT). Rows 2, 3, and 4 show the 1/2 relaxation time (HRT), late relaxation time (LRT), and the relative fusion index (RFI), respectively, for 5, 10, and 20 Hz CTs. See text for operational definitions. Significant (p < 0.05) parameter influences (for 5, 10, and 20 Hz inclusive) are indicated by an asterisk (*).