Effect Of Aerobic Combined Resistance Exercise On Cardiopulmonary And Motor Function In Elderly Patients With Coronary Heart Disease And Hypertension

Objective:The elderly patients with coronary heart disease and hypertension were treated with aerobic combined resistance exercise for 8 weeks.The changes of cardiac function,pulmonary function,cardiac load and motor function were observed before and after treatment.To provide a safe and effective exercise prescription for elderly patients with coronary heart disease and hypertension,and to promote the improvement of cardiopulmonary and motor function.Methods:From November 2021 to May 2022,30 patients with coronary heart disease and hypertension were hospitalized in the Department of Cardiovascular Medicine of Wuhan East Lake Hospital,including 15 patients in the control group and 15 patients in the experimental group.During the experiment,6 patients in the control group were discharged,1patient was transferred,5 patients in the experimental group were discharged,and 2 patients were withdrawn from the experiment for personal reasons.Finally,there were 8 people in the control group and the experimental group to participate in and complete the experiment.The average age of the control group was 84.12±12.11 years,including 4 males and 4 females;the average age of the subjects in the experimental group was 80.75±7.92 years old,including 4males and 4 females.The control group received routine drug intervention and health education,and the experimental group received aerobic combined resistance exercise intervention for 8 weeks,3 times a week,50 minutes each time.Before and after 8 weeks of intervention,the relevant indicators of each group were tested,including cardiac function indicators:peak oxygen uptake（VO₂peak）,anaerobic threshold oxygen uptake（VO₂@AT）,anaerobic threshold exercise load（AT-exercise load）,metabolic equivalents（METs）,oxygen pulse（O₂pulse）,maximum exercise load（MWL）,exercise load time;pulmonary function indexes:vital capacity（VC）,forced vital capacity（FVC）,forced expiratory volume in the first second（FEV1）,ratio of forced expiratory volume in the first second to forced vital capacity（FEV1/FVC）,peak expiratory flow（PEF）,maximum ventilation（MVV）;cardiac load indicators:resting systolic blood pressure（SBP rest）,resting diastolic blood pressure（DBP rest）,heart rate blood pressure product（RPP）;motor function indicators:6-minute walking distance（6MWT）,30-second sitting test（30s-CST）,2-minute step test（2MST）,’standing-walking’timing test（TUGT）and dominant side grip strength（HGT）.SPSS25.0 statistical software was used for statistical analysis of the data.The mean±standard deviation was used to describe the measurement data.The paired sample t test was used to describe the effect comparison before and after training in the group.The independent sample t test was used to describe the difference between groups.P<0.05indicated that the difference was statistically significant.P<0.01 indicated that the difference was significant.Results:（1）In terms of cardiac function,the VO₂peak,VO₂@AT,anaerobic threshold exercise load,METs,O₂pulse,MWL and exercise load time of the experimental group after intervention were higher than those before intervention（P<0.05）,and the comparison between groups after intervention showed that the VO₂peak,VO₂@AT,AT-exercise load,METs,O₂pulse,MWL and exercise load time of the experimental group were better than those of the control group（P<0.05）.（2）In terms of lung function,after intervention,the indexes of VC,FVC,FEV1,FEV1/FVC,PEF and MVV in the experimental group were significantly higher than those before intervention（P<0.05）,and the indexes of VC,FVC and MVV in the experimental group were better than those in the control group（P<0.05）.（3）In terms of cardiac load,SBP rest in the two groups after intervention was lower than that before intervention（P<0.05）,and DBP rest and RPP in the experimental group were lower than those before intervention（P<0.05）.（4）In terms of motor function,TUGT,6MWT,2min steps,30s sitting and standing,and grip strength in the experimental group after intervention were higher than those before intervention（P<0.05）.After intervention,TUGT,6MWT,2min steps,30s sitting and standing,and grip strength in the experimental group were higher than those in the control group（P<0.05）.Conclusion:（1）The 8-week aerobic combined resistance exercise intervention can significantly improve the cardiac function of elderly patients with coronary heart disease and hypertension.（2）The 8-week aerobic combined resistance exercise intervention can significantly improve the lung function of elderly patients with coronary heart disease and hypertension.（3）The 8-week aerobic combined with resistance exercise intervention can improve cardiac load function in elderly patients with coronary heart disease and hypertension.（4）The 8-week aerobic combined with resistance exercise intervention can improve the motor function of elderly patients with coronary heart disease and hypertension.