Abstract
Few studies have shown the combined impact of sitting time and physical activity on quality of life in older people. This cross-sectional study, using data from the 2016–2018 Korean National Health and Nutrition Examination Survey, examines the association between sitting time and physical activity and health-related quality of life (HRQoL) in Korean adults aged ≥ 65 years. HRQoL was assessed using the EuroQol-5 Dimension (EQ-5D, three-level version). We divided subjects into groups based on sitting time and physical activity and analyzed the combined association of sitting time and physical activity with HRQoL. The association between longer sitting time (≥8 h) and HRQoL was analyzed using multiple logistic regression. In total, 4276 participants were included. Prolonged sitting time was associated with all of the EQ-5D dimensions: mobility (odds ratio [OR]: 1.43, 95% confidence interval [CI]: 1.22–1.68), self-care (OR: 1.65 [95% CI 1.25–2.17]), usual activities (OR: 2.07 [95% CI 1.69–2.52]), pain/discomfort (OR: 1.57 [95% CI 1.34–1.84]), and anxiety/depression (OR: 1.49 [95% CI 1.17–1.91]). The prolonged sitting time/inactive group had higher ORs for all the EQ-5D dimensions than the low sitting time/active group. Prolonged sitting time was associated with low HRQoL in elderly Korean adults; physical activity could weaken the negative influence of prolonged sitting time on HRQoL.
Highlights
As life expectancy has gradually increased, it has become increasingly important to improve health-related quality of life (HRQoL) in older people [1]
This study examined the association of sitting time and physical activity with HRQoL
Garcia-Hermoso et al found that prolonged sitting time increased the risk of cognitive impairment regardless of the level of physical activity, and moderate-to-vigorous physical activity could attenuate these negative effects [8]
Summary
As life expectancy has gradually increased, it has become increasingly important to improve health-related quality of life (HRQoL) in older people [1]. HRQoL is a multidimensional indicator that covers physical health, psychological status, personal relationships, functional capacity, social support, and life satisfaction [2]. HRQoL measures have been used to estimate the health conditions or needs of the older population and to improve public health policies [1,3]. There have been many studies of HRQoL in older people, and quality of life has been found to be influenced by various factors [4]. Physical activity has already been proven to have a positive effect on the quality of life of older people, including physical health, mental health, functional capacity, individual autonomy, and pain [5].
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