Figure 5.

Length-tension plot calculated with the model. Stretches were applied either without the step release (circles) or at intervals of 0.2 ms (triangles) and 2 ms (squares) after a step release of 4 nm hs⁻¹. The star indicates the isometric tension before the release. L_c(0) and L_c(2) are critical lengths before and 2 ms after the release, respectively. Letters on the traces indicate the following events: b–c, step release; c–d, quick recovery; b–e, stretch before the release; and d–e, stretch 2 ms after the release. Compare with the experimental results of Fig. 5.