Do the physical activity questions in the Japanese version of the Cardiovascular Health Study criteria truly reflect a decline in physical activity?

Abstract

Older participants identified as having decreased physical activity according to the Japanese version of the Cardiovascular Health Study criteria did not show a significant reduction in accelerometer-measured physical activity. Despite its widespread use in Japanese studies, the Japanese version of the Cardiovascular Health Study physical activity questionnaire may not effectively capture declines in physical activity.

Keywords: J-CHS; frailty; older adults; physical activity; validity.