TABLE 2.
Summary of dynamic properties
| N | Complex stiffness (kN m−2) | −Ev (kN m−2) | fEv (Hz) | Ee (kN m−2) | Pmax (W m−3) | fmax (Hz) | r3 (s−1) | |
|---|---|---|---|---|---|---|---|---|
| IFI | 14 | 237 ± 13 | 95 ± 9 | 106 ± 5 | 219 ± 12 | 49 ± 4 | 137 ± 3 | 1325 ± 43 |
| IFI-7a, line 37A | 12 | 212 ± 24 | 84 ± 7 | 102 ± 4 | 197 ± 24 | 41 ± 3 | 136 ± 6 | 1293 ± 63 |
| EMB | 12 | 68 ± 5 | 28 ± 3 | 20 ± 0.4 | 59 ± 4 | 2.5 ± 0.2 | 20 ± 0.2 | 101 ± 3 |
| EMB-7d, line F40A | 12 | 108 ± 8† | 71 ± 6† | 28 ± 0.7† | 92 ± 7† | 8.0 ± 0.6† | 29 ± 0.4† | 191 ± 6† |
| EMB-7d, line M23C | 6 | 113 ± 22† | 72 ± 13† | 30 ± 0.8† | 99 ± 19† | 8.9 ± 0.16† | 30 ± 0.6† | 149 ± 5† |
Complex stiffness and elastic modulus (Ee) values for IFI and IFI-7a were measured at the frequency (fmax) at which IFI generated maximum power (Pmax). Ee and complex stiffness values for EMB and EMB-7d were measured at the specific fmax of each fiber type. fEv is the average frequency at which the viscous modulus amplitude was lowest. −Ev is the average minimum amplitude for the viscous modulus. r3 is the rate constant for phase 3 of force recovery after a quick lengthening step (see Methods). EMB-7d, line F40A, and EMB-7d, line M23C, are two EMB-7d lines created by independent transformation events. All values are presented as mean ± SE.
*Statistically different from IFI (t-test, p < 0.05).
Statistically different from EMB (t-test, p < 0.05).