Table 1.

Hemodynamic parameters of WT and mdx hearts in 35-day-old mice, as measured by Doppler echocardiography (SI Materials and Methods)

	WT mice (n = 5)	mdx mice (n = 5)
HW/BW, mg · g−1	3.78 ± 0.37	4.26 ± 0.32
Fractional shortening, %	52.0 ± 5.2	60.4 ± 2.7
Relative wall thickness	0.75 ± 0.10	0.83 ± 0.06
E wave, m/s	0.74 ± 0.04	0.71 ± 0.05
VTI, cm	1.43 ± 0.19	1.47 ± 0.25

HW/BW, heart weight:body weight ratio; VTI, velocity time integral of aortic flow.