after 3 and 6 weeks of training cardiac myofibrillar atpase activity in the hearts of the trained rats in both training programs was elevated by 28-40 % over the control group ( p less than 0.05 ) at a pca5 but was not different from the control groups after 9 weeks of training ( p greater than or equal to 0.05 ) .
C0018787
cardiac
C0018799
the hearts of