2Johansson C, Lunde P K, Gathe S, et al. Ismetric force and endurance in skeletal muscle of mice devoid of all know thyroid hormone receptors[J ]. J physiol, 2003,547(3) :789-796.
3Mahler F, Ross J, O' murke R A, et al. Effects of changes in proload, afload and inotropic state on ejection and isovolumic phase measures of contractility in the conscious dog[J ]. Amer J cardial, 1975,35 (5) : 626-634.
4Dowell R T, cutilletta A F, Sodt P C. Fuctional evalution of the rat heart in situ[J ]. J Appl Physiol, 1975,39(6): 1043-1047.
