the effects of pranayama on the respiratory function in discharged covid-19 patients

INTERVENTION: Intervention 1: Intervention group :The intervention group should perform pranayama breathing 3 times a week for 6 weeks and the effect of this exercise will be measured using spirometry and 6 minutes walk .Exercises are provided to people in the form of brochures and educational videos. The executive protocol is as follows: First, sit on all fours on the floor in a comfortable position, so that the back is straight and not hunched over. The position of the eyes can be half open or closed. Breathing begins and all the focus and awareness of the person is directed to his breathing. Correct breathing method: inhale for 4 seconds, hold for 2 seconds and exhale for 4 seconds. According to the ability of each person, the duration of inhaling and exhaling should increase and the duration of inhaling should be longer than inhaling [if possible and without any pressure]. 10‐12 times of this breathing. Another exhalation. A deep breath is taken from both nostrils. The right nostril is closed with the thumb and the exhalation comes out from the left nostril. The thumb still remains on the right nostril. Now one breath is done through the left nostril. The breath is held and the little finger is placed on the left nostril and the thumb is removed and exhaled through the right nostril. This breathing period should be done 8 to 10 times according to the person's capacity. This breathing should be done 3 times a week for 6 weeks. In case of dizziness or headache, you should immediately stop the exercise and rest in a state like prostration .After 6 weeks, spirometry and 6 minute walk are performed again and the results are compared with the control group. Intervention 2: Control group: At the beginning of the study, the control group performs spirometry and 6 minute walk at the sam CONDITION: covid‐19. PRIMARY OUTCOME: Measurement of respiratory volume. Timepoint: 6 week. Method of measurement: Spirometry. INCLUSION CRITERIA: The patient has been discharged from the hospital for a week. over 18 years of age In the past 6 months, he has not suffered from any other acute illness except for Covid‐19. The patient does not have Chronic obstructive pulmonary disease or other respiratory diseases. The participant's forced expiratory volume in 1s must be above 70%. (The recovered patient does not have severe respiratory restriction and is able to participate in the study) The patient has been discharged from the hospital for a week