Table 1:

Physical Activity Levels Defined

Physical Activity Level	Definition	Examples
Sedentary/Sleep	<1.0 MET*a	No Activity
Light	1.0-<3.0 METs	Slow walking Light work (cooking, washing dishes, sitting), instrument playing
Moderate	3.0–6.0 METs	Brisk walking, heavy cleaning (vacuuming, mopping), light bicycling
Vigorous	>6.0 METs	Hiking, jogging, shoveling, heavy lifting, fast bicycling, basketball, soccer, tennis

Adapted from data from Sallis’s et al. 2006 Physical Activity Recall, [30] the Harvard Obesity Prevention Source, [31] and the Centers for Disease Control and Prevention’s Guidelines for Defining Physical Activity by Intensity [32]

^*MET= Metabolic Equivalents [30–32]

^aMET defined by baseline energy expenditure at rest (approximately 3.5ml of oxygen uptake per kg of body weight per minute; e.g. 2 MET activity= 2x energy expenditure of sitting at rest)[32]