Table 2. The effect of combination of three treatments (operation, diet and exercise) on some enzymes in the rat heart (according to two-way ANOVA). Variables Groups p< HO-1 expression operation and diet 0.0040 diet and exercise 0.5589 operation and exercise 0.5046 HO activity operation and diet 0.0002 diet and exercise 0.0604 operation and exercise 0.1918 MPO activity operation and diet 0.5206 diet and exercise 0.0122 operation and exercise 0.0001