Table 4.

Stretch-Activated Tension and k₃

	0.5 ms Length Step			3.5 ms Length Step			0.5 ms
	ASA	PSA	FSA	ASA	PSA	FSA	k3
IFI-11a [13]	5.59 ± 0.68	3.18 ± 0.33	2.41 ± 0.39	5.49 ± 0.63	3.18 ± 0.33	2.31 ± 0.33d	1625 ± 61b,d,e
IFI-11b [9]	4.62 ± 0.44	2.79 ± 0.27	1.83 ± 0.19	4.65 ± 0.45	2.85 ± 0.28	1.80 ± 0.19	1129 ± 37a,c
IFI-11c [12]	4.90 ± 0.43	2.69 ± 0.24	2.21± 0.31	4.70 ± 0.41	2.79 ± 0.20	1.92 ± 0.23	1492 ± 46b,d,e
IFI-11d [10]	3.94 ± 0.27	2.66 ± 0.19	1.29 ± 0.15	3.78 ± 0.26	2.70 ± 0.19	1.08 ± 0.15a	1038 ± 53a,c
IFI-11e [11]	4.77 ± 0.39	2.68 ± 0.33	2.08 ± 0.17	4.54 ± 0.39	2.71 ± 0.34	1.83 ± 0.16	1112 ± 53a,c

A_SA, total active stretch tension (pCa 5.0), P_SA, passive stretch tension (pCa 8.0), F_SA, corrected active stretch tension (F_SA = A_SA − P_SA), k₃, rate of tension development for phase 3. The units for k₃ are s⁻¹, and all other units are mN/mm². All values are mean ± SE. Superscript letters after values in the tables indicate a statistically significant difference between that line and the converter line indicated. One-way ANOVA with Holm-Sidak pairwise multiple comparisons was used (SigmaPlot v11.0) with P < 0.05. Brackets indicate number of fibers tested.