Activity classActivity description
0Always avoid exertion, whenever possible.No regular participation in recreation-
al sports or heavy physical activity.
1Walk for pleasure, routinely use stairs, occasionally
exercise sufficiently to cause heavy breathing or
perspiration.
210 - 60 minutes per weekRegular participation in recreational
sports or work requiring modest
physical activity, such as yard work,
nordic walking or moderate-intensity
cycling.
3Over 1 hour per week
4Less than 30 minutes per weekRegular participation in heavy phys-
ical exercise, such as running, aer-
obic classes or high-intensity cycling.
530 - 60 minutes per week
61 - 3 hours per week
7Over 3 hours per week
7.55 - 7 hours per weekTraining daily
87 - 9 hours per week
8.59 - 11 hours per week
911 - 13 hours per week
9.513 - 15 hours per week
10More than 15 hours per week
11