Accelerometer-assessed sedentary behaviour among Chinese rural older adults: Patterns and associations with physical function

• Published in: Journal of sports sciences 2022-09, Vol.40 (17), p.1940-1949
• Main Authors: Han, Xiaolei, Wang, Xiaojie, Wang, Chaoqun, Wang, Pin, Han, Xiaodong, Zhao, Mingqing, Han, Qi, Jiang, Ziying, Mao, Ming, Chen, Si, Welmer, Anna-Karin, Launer, Lenore J., Wang, Yongxiang, Du, Yifeng, Qiu, Chengxuan
• Format: Article
• Language: English
• Subjects: accelerometry; Balance; Older people; Physical activity; physical function; Population studies; Population-based studies; population-based study; Rural areas; rural elderly; Sedentary behavior; Sedentary pattern
• ISSN: 0264-0414; 1466-447X; 1466-447X
• DOI: 10.1080/02640414.2022.2122321

Sedentary behaviour is associated with a range of adverse health conditions. Population-based studies have rarely examined the distribution and associated factors of accelerometer-measured sedentary behaviour patterns in rural-dwelling older adults. This population-based study included 2096 rural-dwelling older adults (age ≥60 years; 59.0% women) derived from baseline participants of the MIND-China Study. Total sedentary time and patterns (e.g., uninterrupted bouts and breaks) were derived from the hip-worn accelerometers for 7 days. Physical function was assessed using the Short Physical Performance Battery test. Data were analysed using general linear models. Overall, participants spent 58.8% of daily waking time in sedentary behaviour, with nearly half of sedentary time being accumulated through sedentary bouts of 30+ minutes. Men spent more total and accumulated sedentary time than women in each sedentary bout duration, while women had more daily 1+ minute sedentary bouts than men (all P