Korean J Sports Med.  2021 Jun;39(2):60-67. 10.5763/kjsm.2021.39.2.60.

The Association between the Levels of Sedentary Time, Physical Activity, and Obesity in Korean Older Adults

• Son N
• Sung H
• Kim Y

• KMID: 2516231
• DOI: http://doi.org/10.5763/kjsm.2021.39.2.60

Abstract

Purpose
The purpose of this study was to examine the association between the levels of sedentary time, physical activity, and obesity in Korean older adults.
Methods
A cross-sectional analysis was performed on 1,396 Korean older adults aged 65 to 80 years from the Korea National Health and Nutrition Examination Survey 2018. Complex samples logistic regression was used to examine the relationship between the levels of sedentary time, physical activity, and obesity.
Results
The high sedentary group (≥ 8 hours/day) had significantly greater odds of having obesity than the low sedentary group (＜ 8 hours/day). But there was no statistically significant difference in odds of having obesity between the high active group (≥ 600 metabolic equivalent of task [MET]-minute/week) and the low active group (＜ 600 MET-minute/week). The high sedentary/low active group had significantly greater odds of having obesity than the low sedentary/high active group and the low sedentary/low active group. But there was no statistically significant difference in odds of having obesity compared to the high sedentary/high active group.
Conclusion
Higher sedentary time (≥ 8 hours/day) was associated with a higher risk of having obesity, independent of meeting higher physical activity level (≥ 600 MET-minute/week) in Korean older adults.

Keyword

Obesity; Older adults; Physical activity; Sedentary time