Table 6. FITT Prescription for Chronic Obstructive Pulmonary Disease (COPD) patients

FITT	Mild COPD	Severe COPD
Frequency	At least, 3-5/week	At least, 3-5/week
Intensity	Modified Borg scale 5-6	Modified Borg scale 3-5
Time (duration)	20-60 min/day, more than 6-8 weeks	20-60 min/day, more than 6-8 weeks
Type	Walking, biking, swimming	Walking, biking