PR programme consisted of self management education
specifically related to COPD27 and three different types
of exercises: (i) walking; (ii) biking; and (iii) resistance
exercises. Adequate break periods were allowed before
and after each of the three modes of exercises.28 The
intervention group patients were administered nine
sessions (three sessions per week for three weeks). The
20-minute walk consisted of 5 minutes walking
followed by 2 minutes rest to begin with; the rest
interval was reduced till the patient could complete 20
minutes walk without interruption.