Effects of Farinelli's Breathing Exercise in COPD Patients

after 1 minute of normal breathing, follow this instruction; inhale 2 seconds, suspend 2 seconds, exhale 2 seconds. inhale 3 seconds, suspend 3 seconds, exhale 3 seconds. inhale 4 seconds, suspend 4 seconds, exhale 4 seconds. inhale 5 seconds, suspend 5 seconds, exhale 5 seconds. inhale 6 seconds, suspend 6 seconds, exhale 6 seconds. This cycle lasted 1 minute (60 seconds), called Farinelli's breathing (FB). When participants finished these cycle, repeated it again 4 times. 1 minute of NB + 4 minutes of FB called 1 set. The participants were asked to practice 6 sets/day, 5 days/week (Monday-Friday) for week 1-4, and increased duration to 8 sets/day, 5 days/week for week 5-8.

after 1 minute of normal breathing, inhale 2 seconds and exhale 2 seconds with nasal airway. Continued breathing this pattern until 4 minutes, then back to normal breathing 1 minute . 1 minute of NB + 4 minute of DB called 1 set. The participants were asked to practice 6 sets/day, 5 days/week (Monday-Friday) for week 1-4, and increased duration to 8 sets/day, 5 days/week for week 5-8.