Table 1 Classification of physical activity by three categories

Low activity

METs

< 3

Exercise one day a week or less, so much that you get out of breath or sweat

One hour a week or less of exercise, so much that you get out of breath or sweat

Individuals who do not meet the criteria for moderate-intensity and vigorous-intensity activity categories are considered inactive.

Moderate activity

METs

3–6

Exercise 2–3 days a week, so much that you get out of breath or sweat

2–3 hours a week of exercise, so much that you get out of breath or sweat

• 3 or more days pr. week of vigorous activity, at least 20 minutes per day OR

• 5 or more days pr. week of moderate intensity activity or walking, at least 30 minutes per day OR

• 5 or more days pr. week of any combination of walking, moderate-intensity or vigorous-intensity activities achieving a minimum of at least 600 MET-min/week.

High activity

METs

> 6

Exercise four days or more a week, so much that you get out of breath or sweat

Four hours or more a week of exercise, so much that you get out of breath or sweat

• Vigorous-intensity activity on at least 3 days pr. week and accumulating at least 1500 MET-min/week OR

• 7 or more days pr. week of any combination of walking, moderate-intensity or vigorous-intensity achieving a minimum of a least 3000 MET-min/week.