Table 1.
Comparison of the relevant parameters estimated with models 1 and 2
| Parameter | Model 1 | Model 2 |
| fOFF | ||
| LC | 0 | 0.15 ± 0.10 |
| FE | 0.56 ± 0.05 | 0.64 ± 0.08 |
| fA | ||
| LC | 0.180 ± 0.009 | 0.180 ± 0.019 |
| FE | 0.079 ± 0.005 | 0.079 ± 0.010 |
| rc | ||
| LC | 0.180 ± 0.009 | 0.212 ± 0.049 |
| FE | 0.180 ± 0.023 | 0.219 ± 0.075 |
In model 1, fOFF is assumed to be zero at the peak of LC twitch; in model 2, fOFF at the peak of LC twitch is assumed to be 0.15, in agreement with the conclusion from model 1 that fOFF becomes zero when activation is maximal (Tmax = 110 kPa; details are in the text). The errors are calculated as detailed in SI Methods.