COVID-19 is a global pandemic disease in 2020. COVID-19 patients frequently spend long periods of time in ICU bed, which might result in post-ICU dyspnea, extreme fatigue, muscle rigidity, and neuropathic pain due to critical illness, and also decreased joint mobility, neck and shoulder pain, difficulty in standing, and impaired balance and gait, with subsequent limitations in daily activities. These lingering symptoms might last for months and take time to go away.

Method: The experiment was randomized and controlled. To create groups A and B, 48 individuals were selected by sample selection criteria. Evaluation of oxygen saturation and pulmonary function tests were taken using a pulse oximeter and spirometer. Group A performed breathing exercises and ACBT whereas Group B performed breathing exercises. The treatment took 15-30 minutes and consisted of one session per day; treatment was given 6 days a week for up to 2 weeks and examined by using SPSS 25.

Results: Pulse oximetry, and spirometer, results showed a statistically significant difference between the two groups. Oxygen saturation (SpO2), FEV1, FVC, and FEV1/FVC with a p- value of less than 0.05 was analyzed. The results showed that both groups were successful, although Group A improved more.

Conclusion: Breathing exercises combined with or without ACBT exercises improved oxygen saturation and pulmonary function test. However, based on their mean differences, breathing exercises with ACBT exercises were more beneficial in terms of SpO2, FEV1, FVC, and FEV1/FVC measures.

Indexed Terms_COVID-19 19, Respiratory physiotherapy, ACBT, Pulmonary function