Influence of intermittent load training method on exercise tolerance,car-diac function,and quality of life in patients with chronic heart failure
Objective To explore influence of intermittent load training method on exercise tolerance,cardiac function,and quality of life in pa-tients with chronic heart failure.Methods A total of 120 patients with chronic heart failure admitted to Cardiovascular Department of the First Af-filiated Hospital with Nanjing Medical University from September 2021 to August 2023 were selected as study subjects.They were divided into the control group and the study group by using random number table method,with 60 patients in each group.The control group received routine reha-bilitation training,the study group received intermittent load training,and both groups continued training for three months.Exercise tolerance,heart function and quality of life between the two groups were compared before intervention and three-month after intervention.Results Before interven-tion,there was no statistically significant difference in six-minute walking distance between the two groups(P>0.05).Three-month after interven-tion,six-minute walking distance of the two groups was longer than before intervention,and that in the study group was shorter than that in the con-trol group,the difference was statistically significant(P<0.05).Before intervention,there were no statistically significant differences in mean mitral valve pressure gradient(mMPG),left ventricular ejection fraction(LVEF),left atrial diameter(LAD),and left ventricular mass index(LVMI)between the two groups(P>0.05).Three-month after intervention,mMPG and LVMI in both groups were lower than before intervention,LVEF in both groups was higher than before intervention,LAD in both groups was shorter than before intervention,and mMPG and LVMI in the study group were lower than those in the control group,LVEF in the study group was higher than that in the control group,LAD in the study group was shorter than that in the control group,the differences were statistically significant(P<0.05).Before intervention,there were no statistically significant differ-ences in the scores of each dimension of Minnesota living with heart failure questionnaire(MLHFQ)between the two groups(P>0.05).Three-month after intervention,the scores of each dimension of MLHFQ in both groups were lower than before intervention,and those in the study group were lower than those in the control group,the differences were statistically significant(P<0.05).Conclusion Intermittent load training can help im-prove heart function,exercise tolerance,and enhance quality of life in patients with chronic heart failure.
Intermittent load trainingChronic heart failureExercise toleranceCardiac functionQuality of life