Figure 2. Distribution of accelerometer-measured MVPA according to physical activity pattern using the 50% top-two-day definition. a, Distribution of total weekly MVPA in inactive, WW, and regularly active participants. b and c, Distributions of mean daily MVPA during the two most active days and the remaining five days among WW and regularly active participants, respectively. Dashed vertical lines indicate medians; annotations report the median and IQR, and the double-headed horizontal arrow shows the difference between the two medians. Inactive participants accumulated <150 min/week of MVPA. Among participants accumulating >=150 min/week, WW participants accumulated >=50% of total weekly MVPA on the two most active days, whereas regularly active participants accumulated <50% on those days. Density is explicitly defined as the relative population distribution estimated using kernel density estimation. Abbreviations: IQR, interquartile range; MVPA, moderate-to-vigorous physical activity; WW, weekend warrior.