Table 8.

Categorization of Patient Levels of Physical Activity

Group	Description of Patients' Physical Ability
1	No participation of additional activities. Only activities of daily living..
2	Strengthening or stretching activity.
3	Low cardiovascular exercise (cycling or walking) at a level less than that recommended by the Surgeon General's report (i.e., <3 times weekly and/or <20 min/session).
4	Recommended cardiovascular exercise in which patients reported doing at least 3 times weekly for 20 minutes or more per session.