Table 2.

Dynamic properties from large amplitude work loops

	N	PWL(W/m3)	fWL(Hz)	W(J/m3)	W+(J/m3)	W−(J/m3)
Control	10	816 ± 55	152 ± 11	5.7 ± 0.9	44.4 ± 5.2	38.7 ± 3.6
R759E-2	12	347 ± 49∗	106 ± 10∗	2.9 ± 0.4∗	28.1 ± 3.7∗	25.2 ± 3.3∗

P_WL is the maximum power that the fiber type is capable of producing when strain amplitude and frequency are optimized for power production. f_WL is the frequency at which maximum power was produced. Work per cycle values were obtained under the same conditions, i.e., optimal f_WL and strain that generated P_WL. W is net work per cycle, W+ is the work generated during shortening, and W− is the work absorbed during lengthening. All values are mean ± SE. N is the number of fibers tested.

^∗Value is significantly different from control fibers (Student's t-test, p < 0.05).