Comparative study of effects of aerobic training vs resistance training on heart rate variability and functional capacity in type 2 diabetes mellitus

This study compare the effects of aerobic training and resistance training on heart rate variability and type 2 diabetes mellitus. Forty-eight type 2 diabetes mellitus patients were randomly assigned to Group A (Aerobic training group, n=24) and Group B (Resistance training group n=24).

The Group A performed aerobic exercise training includes moderate intensity exercise such as brisk walking at 60–70% of maximum heart rate for 15 minutes each session for 3 days per week for 6 weeks and Group B performed resistance training with different exercises such as biceps curls, triceps extension, leg curls, side leg raises and knee extension with dumbbells for 15 minutes 4 sets and 10 repetition of each exercise. Subject started with moderate intensity 10 lifts 50% of 10 RM with 2kg of weight, then 75% of 10 RM and progressed to 100% of 10 RM. Heart rate variability (measured by apple watch), functional capacity (measured by 6 minute walk test) and maximal oxygen capacity VO2 max (measured by Harvard step test).

Significant changes showed in both the groups but group A showed highly significant improvement in heart rate variability and functional capacity compared to group B.

Aerobic training is recommended to improve heart rate variability, functional capacity and VO2 max in patients with type 2 diabetes.