“…Third, total activity is the sum of the duration and intensity of all activities and is calculated using the following equation: total activity = sum (duration × intensity) (items #4-36). Total activity (≥light-intensity activity) = sum (duration × intensity) (items #4, 5,6,7,8,9,10,11,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,32,33,34,35,36, and #30 or 31 with >1.5 METS).…”