Low total physical activity, high total sitting time and high sitting time on a work day are correlated with low fitness in male working adults: a cross sectional study

Background : Low fitness is an emerging factor for cardiovascular diseases. Physical activity and sitting time are arising factors that influence fitness level. There are some debates on what domain of physical activity and sitting time that have more influences on fitness level. The aims of this study were to (1) explore each domain of physical activity & sitting time and analyze their associations with low fitness in male working adults and (2) explore the differences between sitting time on a working day and a day-off