Mechanical parameters from IFM skinned fiber sinusoidal analysis
| Genotype . | N . | fmax (Hz) . | Power output (W m-3) . | Ev (kN m-3) . | Ee (kN m-3) . | Dynamic stiffness (kN m-3) . |
|---|---|---|---|---|---|---|
| +/+ | 10 | 131±6 | 46±7 | -95±15 | 441±40 | 453±40 |
| P{fln+}0.2 | 8 | 113±8 | 39±7 | -88±15 | 419±61 | 428±62 |
| P{fln+}2.2 | 4 | 130±15 | 34±5 | -73±74 | 362±42 | 374±38 |
| fln0 † | 14 | 77±38 | -4±3 | -3±5 | 56±14 | 57±15 |
| Genotype . | N . | fmax (Hz) . | Power output (W m-3) . | Ev (kN m-3) . | Ee (kN m-3) . | Dynamic stiffness (kN m-3) . |
|---|---|---|---|---|---|---|
| +/+ | 10 | 131±6 | 46±7 | -95±15 | 441±40 | 453±40 |
| P{fln+}0.2 | 8 | 113±8 | 39±7 | -88±15 | 419±61 | 428±62 |
| P{fln+}2.2 | 4 | 130±15 | 34±5 | -73±74 | 362±42 | 374±38 |
| fln0 † | 14 | 77±38 | -4±3 | -3±5 | 56±14 | 57±15 |
Values are means ± s.e.m. at the frequency at which maximum power production occurred (fmax) at maximum Ca2+ activation (pCa 5). N, number of fibers tested. Ev, viscous modulus, Ee, elastic modulus. All fibers from 2–5-day-old flies except fln0,†from Henkin et al.(2004). Oscillatory work is proportional to –Ev.