Table 1.

Recommended physical activity levels per week

		Recommendation A a	Recommendation B a	Recommendation C a	Recommendation D a
Recommendations by WHO [16]	Time spent	At least 150 min of moderate-intensity PA	At least 75 min of vigorous-intensity PA
	MET values b	At least 150 min * 4.0 = 600 MET-minutes c	At least 75 min * 8.0 = 600 MET-minutes d	Equivalent combination of moderate- and vigorous-intensity PA > 600 MET-minutes e
Guideline for Americans [17]	Time spent	150 to 300 min of moderate-intensity PA	75 to 150 min of vigorous-intensity PA	Equivalent combination of moderate- and vigorous-intensity PA	Beyond the equivalent of 300 min of moderate-intensity PA

PA, physical activity; METs, metabolic equivalents; WHO, World Health Organization

^a Based on the recommendations of the WHO and the American guidelines, participants who meet either Recommendation A, Recommendation B, or Recommendation C are described as having achieved sufficient physical activity (PA_sufficient). Participants who meet Recommendations D are described as having overfulfilled physical activity (PA_{overfulfilled}).

^b MET values are applied to the time variables to assess the intensity (moderate or vigorous) of PA.

^c MET values of moderate-intensity work, moderate-intensity recreation, and transport (cycling and walking) are equivalent to 4.0

^d MET values of vigorous-intensity work and vigorous-intensity recreation are equivalent to 8.0

^e An equivalent combination of MET values of moderate- and vigorous-intensity physical activity