Comparative Study between Efficacy of Circuit Training and Interval Training in Improving Exercise Capacity among Chronic Kidney Disease Patients

Abstract

Introduction: Exercise has several benefits in general population in reducing risk of cardiovascular mortality. Aerobic, resistance and combined exercise are several forms of exercises suggested in CKD to improve quality of life. Circuit training and interval training are two important forms of high intensity aerobic resistance training. There is a limited data that compares these two forms of exercise and their benefits in CKD. Hence this study was designed to find and compare the effectiveness of circuit training and interval training in improving exercise capacity amongst CKD. Materials and Method: This was an intervention study. Patients aged between 36-71 years with CKD stage 2-5, who were hemodynamically stable, who could perform activities and not having associated co morbid conditions were included. Those with chronic heart failure and co morbid conditions were excluded. 82 patients were recruited, with 41 in each of circuit training and interval training group. The intervention (circuit based and interval based) lasted for 8 weeks in total, with exercise sessions lasting for 50-55 minutes at a frequency of 3 sessions per week. The progression of intensity, frequency and duration was monitored and controlled by Borg’s perceived exertion scale applied for resistance exercise. 6 minutes walk test prior and after exercise at baseline and after 8 weeks was recorded along with vitals. Results and Discussion: 120 patients were screened from February 2016 through January 2017 for eligibility to participate in this study, patients assessed for eligibility to participate, 38 individuals were excluded because they did not meet inclusion criteria or declined to participate in the study after the initial screening according to inclusion criteria selected the sample 41 patient each has selected for each group rest of them excluded from the study. Conducted study for total duration of 1 year, each patient had trained for 8 weeks. 2 weeks supervised and 6 weeks home based. All were performed well during training period. Conclusion: Baseline characteristics were similar and both circuit and interval exercise intervention showed improvement in 6 minutes walk test.