Figure 4.
Mechanical steady-state forces. (A) Fmax determined at pCa 4.5. (B) Fpass determined at pCa 7.5. (C–F) Kinetic parameters determined for myotomal myofibrils isolated from larvae (light-gray filled bar) and adult (dark-gray filled bar) zebrafish. (C) Rate constants of force development (kACT). (D–F) kLIN, tLIN, and kREL determined from relaxation time courses. n is the number of analyzed myofibrils at 10°C.