Table 3.

Drosophila TDT muscle fiber mechanics as measured by force-clamp analysis

	a/Tmax (no units)	b (ML/s)	Vmax (ML/s)	Vopt (ML/s)	Topt/Tmax (%)	pmax (ML/s × T/Tmax)	pmax (ML/s × mN/mm2)
Tr-WT	0.15 ± 0.02	0.77 ± 0.10	5.10 ± 0.34	1.34 ± 0.08	26 ± 1	0.35 ± 0.03	12.9 ± 1.4
EMB	0.14 ± 0.03	0.43 ± 0.04∗	3.23 ± 0.38∗	0.85 ± 0.06∗	25 ± 1∗	0.20 ± 0.01∗	11.3 ± 1.4

a, fitted parameter based on Hill's equation; b, fitted parameter based on Hill's equation; ML, muscle length; p_max, maximum power; T_max, maximum activated tension; T_opt, tension at maximum power; Tr-WT, wild-type myosin isoform; V_max, maximum shortening velocity extrapolated from the Hill fit of tension-velocity curves; V_opt, velocity at maximum power.

The p_max values in the final column were calculated using V_opt, T_opt/T_max, and T_max from Table 2. n = 10 for both Tr-WT and EMB. Values are mean ± SE.

^∗Significantly different from Tr-WT, p < 0.05, Student's t-test.