Isotemporal Substitution Analysis of Accelerometer-Derived Sedentary Behavior and Physical Activity on Cardiometabolic Health in Korean Adults: A Population-Based Cross-Sectional Study

Abstract

Reducing sedentary behavior and increasing physical activity may be important for maintaining good cardiometabolic health. However, many studies have focused on the independent effect of sedentary behavior and physical activity, but it is unclear whether replacing time spent in sedentary behavior with physical activity is beneficial for cardiometabolic health. Therefore, this population-based cross-sectional study aimed to investigate the effect of behavioral transformations between sedentary behavior and level of physical activity on cardiometabolic health in Korean adults using data from the Korea National Health and Nutrition Examination Survey (KNHANES) 2014–2017. The study participants included 2197 adults from the KNHANES. In the partition model, moderate-to-vigorous physical activity (MVPA) was significantly associated with adverse cardiometabolic health, adjusted for potential confounding factors. The odds ratio for adverse cardiometabolic health significantly decreased with the replacement of sedentary behavior and light intensity activity with MVPA in the isotemporal substitution model (p < 0.05). In the models stratified by sex, we observed significant associations between handgrip strength and cardiometabolic health in women (p < 0.001), but not in men. Thus, our findings suggest that replacing sedentary behavior with MVPA may contribute to improved cardiometabolic health.

Association of Physical Activity Patterns with the Metabolic Syndrome in Korean Adults: A Nationwide Cross-Sectional Study

“…This group consistently demonstrated lower ORs for MetS, regardless of sex, age, or subgroup classification. These results are consistent with previous studies highlighting the positive impact of regular physical activity on metabolic health [ 15 , 16 , 17 , 18 ]. The persistent association between regular physical activity and reduced risk of MetS underscores the significance of maintaining a consistent physical activity routine and transcending demographic boundaries.…”

Accelerometer-derived physical activity and sedentary behavior patterns among Korean adults

“…These findings suggest that increasing MVPA and reducing SB in daily life are important. Our previous research suggested that replacing 30 minutes of SB with MVPA reduced the risk of cardiometabolic disease by 23% [ 18 ], indicating the need for public health interventions to meet MVPA and SB guidelines in Korea.…”

“…The duration of wear was calculated by subtracting any non-wear duration of more than 60 consecutive minutes. Records with less than 10 hours of wear duration per day for four days were considered invalid [ 18 , 24 ].…”

“…These are small devices worn on the body to detect and quantify movements, which provide detailed information on PA, including intensity, duration, and frequency. They have been used to assess the PA and SB patterns in various populations, including children, adults, and older adults in different countries and cultures [17][18][19] .…”

Does physical activity influence health behavior, mental health, and psychological resilience under the moderating role of quality of life?

“…Multiple research studies have substantiated the positive impacts of physical exercise on mental well-being ( Dai and Menhas, 2020 ; Duncan et al, 2020 ; Saqib et al, 2020 ). Moreover, a positive correlation exists between increased levels of daily exercise, also known as habitual physical activity (HPA), and enhanced aerobic performance and an extended lifespan ( Ma et al, 2021 ; Welsner et al, 2021 ). Consistent participation in physical activity yields enhancements in both bodily and mental well-being, with the adoption of additional health-enhancing practices and reduced susceptibility to chronic ailments ( Saqib et al, 2020 ).…”