Table 1. Parameter estimates resulting... | Rockefeller University Press

Table 1.

Parameter estimates resulting from fitting Eq. 7 to step force responses recorded in skinned mouse myocardium exposed to varying Pi at approximately half Ca²⁺ activation, pCa 5.9

Condition	G_p (mN · mm⁻²)	k_p	$(L_{hs} γ \frac{g_{1} {\bar{A}}_{0}}{f_{0}})$ (mN · mm⁻²)	$(L_{hs} λ {\bar{A}}_{0})$ (mN · mm⁻²)	f₀ + g₀ (s⁻¹)	g₀ (s⁻¹)	f₀ (s⁻¹)
[Pi] (mM)
1.0	142	0.154	37.2	3.25	80.6	67.2	13.4
2.0	139	0.159	35.4	2.91	84.3	70.1	14.2
3.0	141	0.154	34.2	2.78	86.4	71.9	14.5
4.0	143	0.149	36.6	2.53	89.3	75.9	13.4
5.0	139	0.157	38.2	2.21	90.3	77.7	12.6
8.0	144	0.148	49.2	2.43	93.6	83.1	10.5
r	0.527	−0.587	0.842	−0.808	0.962	0.990	−0.862
P	0.283	0.288	0.036	0.049	0.002	<0.001	0.027

Condition	G_p (mN · mm⁻²)	k_p	$(L_{hs} γ \frac{g_{1} {\bar{A}}_{0}}{f_{0}})$ (mN · mm⁻²)	$(L_{hs} λ {\bar{A}}_{0})$ (mN · mm⁻²)	f₀ + g₀ (s⁻¹)	g₀ (s⁻¹)	f₀ (s⁻¹)
[Pi] (mM)
1.0	142	0.154	37.2	3.25	80.6	67.2	13.4
2.0	139	0.159	35.4	2.91	84.3	70.1	14.2
3.0	141	0.154	34.2	2.78	86.4	71.9	14.5
4.0	143	0.149	36.6	2.53	89.3	75.9	13.4
5.0	139	0.157	38.2	2.21	90.3	77.7	12.6
8.0	144	0.148	49.2	2.43	93.6	83.1	10.5
r	0.527	−0.587	0.842	−0.808	0.962	0.990	−0.862
P	0.283	0.288	0.036	0.049	0.002	<0.001	0.027

The correlation coefficient, r, refers to the Pearson coefficient between the given parameter and Pi condition; r values shown in bold demonstrate statistical significance at P < 0.05.

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