. 2004 Sep;87(3):1805–1814. doi: 10.1529/biophysj.103.032078

TABLE 2.

Summary of dynamic properties

	N	C. stiff (kN m⁻²)	−E_v (kN m⁻²)	fE_v (Hz)	E_e (kN m⁻²)	P_max (W/m⁻³)	f_max (Hz)	r₃ (s⁻¹)
IFI	10	367 ± 28	142 ± 12	125 ± 4	343 ± 23	81 ± 8	145 ± 4	1140 ± 66
IFI-3a	10	283 ± 34^*	134 ± 24	78 ± 5^†	267 ± 28^‡	56 ± 9^†	121 ± 4^†	797 ± 55^†
EMB	7	74 ± 13	51 ± 10	18 ± 0.9	58 ± 10	4.4 ± 0.9	19 ± 0.8	111 ± 7
EMB, 34	6	70 ± 12	42 ± 8	17 ± 1.1	61 ± 9	3.6 ± 0.8	18 ± 1.1	108 ± 4
EMB-3b	7	164 ± 18^§	80 ± 12^§	31 ± 1.7^§	146 ± 14^§	12 ± 1.9^§	34 ± 0.9^§	295 ± 27^§
EMB-3b, 157	6	158 ± 11^§	83 ± 6^§	27 ± 1.7^§	134 ± 11^§	11 ± 0.8^§	30 ± 0.7^§	312 ± 8^§
IFI-2h	5	135 ± 9^§	34 ± 2	132 ± 4^§	132 ± 9^§	22 ± 2^§	152 ± 6^§	1169 ± 58^§

Complex stiffness (C. stiff) and elastic modulus (E_e) values for IFI and IFI-3a were measured at the frequency (f_max) at which IFI generated maximum power (P_max). E_e and C. stiff values for EMB, EMB-IC, and IFI-2h were measured at the specific f_max of each fiber type. fE_v is the average frequency at which the viscous modulus amplitude was lowest. −E_v is the average minimum amplitude for the viscous modulus, and r₃ is the rate constant for phase 3 of force recovery after a quick lengthening step (see Methods). EMB, 34 is a second EMB line created by an independent transformation event, and EMB-3b, 157 is a second EMB-3b line created by an independent transformation event. All values are means ± SE.

t-test, p = 0.073 for IFI compared to IFI-3a.

^†

Statistically different from IFI (t-test, p < 0.05).

^‡

t-test, p = 0.047 for IFI compared to IFI-3a.

^§

Statistically different from EMB and EMB, 34 (t-test, p < 0.05).