Table II. Estimated intrinsic... | Rockefeller University Press

Table II.

Estimated intrinsic cross-bridge parameters of skeletal (larvae and adult zebrafish) and cardiac (adult zebrafish and mouse) myofibrils based on the Brenner's model (Brenner, 1988)

Cross-bridges from:	Skeletal sarcomeres		Cardiac sarcomeres
	Larvae zebrafish	Adult zebrafish	Adult zebrafish	Mouse
f_app (s⁻¹)	16.5 ± 4.3^a	4.6 ± 1.1	3.5 ± 0.6	3.4 ± 0.2
g_app (s⁻¹)	11.1 ± 2.2^a	6.3 ± 0.7	1.8 ± 0.1	2.2 ± 0.1
α_F	0.57 ± 0.06	0.40 ± 0.06	0.63 ± 0.04	0.61 ± 0.02
$N \cdot \tilde{F}$ (kPa)	71 ± 8^b	46 ± 4	79 ± 7	96 ± 7

Cross-bridges from:	Skeletal sarcomeres		Cardiac sarcomeres
	Larvae zebrafish	Adult zebrafish	Adult zebrafish	Mouse
f_app (s⁻¹)	16.5 ± 4.3^a	4.6 ± 1.1	3.5 ± 0.6	3.4 ± 0.2
g_app (s⁻¹)	11.1 ± 2.2^a	6.3 ± 0.7	1.8 ± 0.1	2.2 ± 0.1
α_F	0.57 ± 0.06	0.40 ± 0.06	0.63 ± 0.04	0.61 ± 0.02
$N \cdot \tilde{F}$ (kPa)	71 ± 8^b	46 ± 4	79 ± 7	96 ± 7

Values were compared between skeletal myofibrils from larvae and adult zebrafish (second and third columns), and between cardiac myofibrils from adult zebrafish and mouse (fourth and fifth columns); 1 kPa = 1 nN/µm².

P < 0.05; unpaired t test.

P < 0.01; unpaired t test.

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