Relative influence of diet and physical activity on body composition in urban Chinese adults

摘要: Background: The relative influence of diet and physical activity on body fatness remains uncertain. Objective: objective the study was to investigate associations dietary variables with in urban Chinese adults. Design: We conducted a cross-sectional 130 weight-stable men women aged 35-49 y. Subjects were selected from upper lower tertiles fat basis screening questionnaires. Dietary intake assessed by weighed food intake, level (PAL) calculated as ratio predicted total energy expenditure (TEE) resting expenditure, composition measured use 2 H O. Reported TEE validated against determined 18O (n = 73). Results: Body positively associated variety (ie, ingredients) (partial r 0.186, P 0.039) frequency consuming restaurant foods 0.237, 0.001) negatively PAL -0.307, multiple regression analysis that controlled for sex confounders. combined variance accounted consumption (9.1%) equivalent (9.4%). Neither nor density fatness, but within-subject day-to-day variation reported (P < 0.001). Conclusions: variety, consumption, significantly adults, did not. These findings support previous studies US adults suggest other than have an important adult composition.