Table 1.

Morphological characteristics, infarct area and lung and hepatic congestion of sham-operated groups and rats with left ventricular dysfunction.

Groups	Initial body weight, g	Final body weight, g	Infarcted area, %	HW/BW, mg/g	LV/BW, mg/g	RV/BW, mg/g	Pulmonary congestion, %	Hepatic congestion, %
Sed-Sham	217±12	323±32	__	2.67±0.25†	2.17±0.3	0.43±0.16	69.73±1.15	72.17±0.74
RMT-Sham	211±8	302±30	__	2.46±0.97*	1.97±0.77	0.49±0.14	67.98±4.75	72.85±0.99
Sed-HF	220±7	314±20	43.10+-4	3.46±0.4**	2.58±0.2	1.05±0.22§	76.73±1.39§	72.83±1.23
RMT-HF	218±13	314±30	45.12±9	3.34±0.54	2.52±0.43	0.72±0.22	68.23±4.68	71.64±1.93

Values are means ± SD. Groups were compared by the two-way ANOVA and Tukey post hoc tests. Sedentary sham rats (Sed-Sham; n=8); respiratory muscle training sham rats (RMT-Sham; n=8); sedentary heart failure rats (Sed-HF; n=7); respiratory muscle training heart failure rats (RMT-HF; n=7). HW/BW=heart weight-to-body weight ratio; LV/BW=left ventricle-to-body weight ratio; RV/ BW=right ventricle-to-body weight ratio.

^*P<0.05 compared with Sed-HF and RMT-HF

^†P<0.05 compared with RMT-HF.

^**P<0.01 compared with Sed-Sham.

^§P<0.01 compared with Sed-Sham, RMT-Sham and RMT-HF.