Effect of pulmonary tele-rehabilitation and progressive muscle relaxation training in COVID-19 patients

INTERVENTION: Intervention 1: Intervention group: pulmonary telerehabilition with progressive muscle relaxation exercise. pulmonary rehabilitation includes breathing exercises, aerobic and resistance exercises. The relaxation exercise is based on Jacobsen's summarized method. The duration of the intervention is six weeks and the exercises are supervised by the physiotherapist through video call twice a week. Intervention 2: ?Control group: pulmonary telerehabilitation includes breathing exercises, aerobic and resistance exercises. The duration of the intervention is six weeks and the exercises are supervised by the physiotherapist through video call twice a week. CONDITION: COVID‐19. ; COVID‐19, virus identified U07.1 PRIMARY OUTCOME: Exercise capacity. Timepoint: before intervention, up to two and six week after intervention. Method of measurement: Six minute walk test. SECONDARY OUTCOME: Axiety. Timepoint: Before intervention and six weeks after start of intervention. Method of measurement: Hospital anxiety and depression scale. Depression. Timepoint: Before intervention and six weeks after start of intervention. Method of measurement: Hospital anxiety and depression scale. Dyspnea. Timepoint: Before intervention, up to two and six week after start of intervention. Method of measurement: 0‐10 dyspnea Borg scale. Exercise capacity. Timepoint: Before intervention, six weeks after start of intervention. Method of measurement: repeated chair rise test during 30 seconds. Fatigue severity. Timepoint: Before intervention, six weeks after start of intervention. Method of measurement: fatigue severity scale. Quality of life. Timepoint: Before intervention, six weeks after start of intervention. Method of measurement: SF36, santgeorg respiratory questionaire. Sleep quality. Timepoint: Before intervention, six weeks after start of intervention. Method of measurement: Petersborg sleep quality questionaire. INCLUSION CRITERIA: COVID‐19 confirmed with polymerase chain reaction test (PCR) Discharged from hospital (at least six days after the onset of symptoms) Patients who have to the ability to read and write in Persian Patients who access to the Internet and video call service