Can We Make Time for Physical Activity? Simulating Effects of Daily Physical Activity on Mortality

Figure 2

Shifting patterns of activity by time of day on weekdays. This chart displays activity intensity scores that vary by time of day and that are associated with particular combinations of activity types. The activity intensity scores were produced using a descriptive dimension reduction technique—correspondence analysis [34]—applied to a table of activity time frequencies representing weekdays. The table comprised 1440 rows—one for each minute of the day—and 182 columns—one for each activity coded in the GSS. Each line on the chart represents a particular time pattern of activity that is associated with a particular profile of activity types.