Effects of different types and frequencies of physical activity on the homeostatic model assessment of insulin resistance

This study analyzed the type and frequency of physical activity that most effectively reduces the homeostatic model assessment of insulin resistance (HOMA2-IR) among adults (≥19 years) in Asia. We used national representative data from 1645 men and 2272 women who participated in the Korea National Health and Nutrition Examination Survey in 2015 were included in the analysis. The effects of different types and frequencies of physical activity on HOMA2-IR were investigated using a multiple regression analysis. Compared with no activity, moderate-To-vigorous physical activity (MVPA) ≥5 times per week (β:-0.214, p≤0.0198) and walking and MVPA ≥5 times per week (β:-0.183, p≤0.0049) were negatively associated with HOMA2-IR. In the subgroup analysis, the strongest effect was observed among overweight men. Additionally, walking plus MVPA ≥5 times per week had the strongest effect on men with a higher-Than-recommended daily calorie intake (β:-0.350, p≤0.0030). Therefore, in conclusion, the appropriate type and frequency of physical activity can help reduce HOMA2-IR in South Korean men, especially those who are overweight and/or have a higher-Than-recommended daily calorie intake.