Abstract
Surveillance of physical activity trends in older adults is limited in developing nations. This study examined 10-year leisure-time physical activity trends of elderly residents of Shanghai, the largest Chinese city with the nation's highest proportion of senior citizens. The study used panel data from the Shanghai Longitudinal Survey of Elderly Life and Opinion (1998, 2003, 2005 and 2008). Leisure-time physical activity questions included (i) 16 major leisure-time habitual activities and (ii) regular exercise in the previous 6 months. In comparison to 1998, for Shanghai elders, the trend for engaging in leisure-time habits not related to physical activity increased over time, becoming statistically significant in 2005 and 2008 (e.g. OR for watching TV in 2003, 2005 and 2008 is 1.04 [0.91, 1.19], 1.17 [1.00, 1.38] and 1.78 [1.51, 2.09], respectively). Simultaneously, the trend for engaging in regular exercise declined significantly in each observation year in comparison to 1998 (OR in 2003, 2005 and 2008 is 0.70 [0.61, 0.80], 0.36 [0.30, 0.42] and 0.28 [0.24, 0.33], respectively). Discussion An increasingly sedentary lifestyle has evolved over the past decade in Shanghai. This highlights a need for public health agencies to develop effective active lifestyle interventions and physical activity promotion programs for local elders.
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