The reduction of QRS voltage , arrhythmia and abnormal troponin were 55.0 % , 45.0 % and 45.0 % , respectively , in the control group , significantly higher than those in the experimental group ( 20.0 % , P < 0.05 ) , ( 10.0 % , P = 0.010 ) and ( 10.0 % , P < 0.05 ) , respectively .