Covid19
Conditions
Brief summary
It is to explore the temporal relationships between physical fitness, cognitive, psychosocial functions, and health-related quality of life (HRQoL) in COVID-19 survivors over the first 15 months; and to determine the effects of centre-based (CBR), online-based cardiopulmonary rehabilitation (OBR), and combined centre- and online-based rehabilitation (COBR) on survivors with initially suboptimal pulmonary functions.
Interventions
Depending on the preference of participants, they can either choose to join three 60-minute centre-based sessions plus two sessions of 30-minute home exercise per week, or two 60-minute centre-based sessions plus four sessions of 30-minute home exercise per week. Each session will include warm-up and cool-down exercises, aerobic exercises, and progressive strengthening exercises prescribed based on individual ability (Table 1). Aerobic exercises will be performed at 60-75% (up to 85% for fit individuals) of the predicted maximum heart rate. The respective rate of perceived exertion during exercise will be maintained between 4 and 6 out of 10 on the Borg CR scale \[10\], indicating moderate to strenuous exercise levels. Additionally, physiotherapists will provide education related to COVID-19, energy conservation, and stress management during the program.
Participants in the OBR group will attend one face-to-face session to learn how to use a mobile application (app) followed by 6 weeks of home exercises. The online treatments will be delivered via the Caspar Health e-system, a German-designed Internet-based system, is available for desktop PCs and as a mobile app for both iOS and Android smartphones. This system will enable patients to follow their therapists' treatment plans in an asynchronous manner. The OBR programme will last for 6 weeks. Participants will be instructed to perform 40 minutes of structured exercises 6 times per week. In the first week, six 40-minute online exercise sessions will be delivered through push notifications on the mobile app.
Sponsors
Study design
Eligibility
Inclusion criteria
* COVID survivor at hospital discharge or 6-month post-disease onset * Medically stable with an Abbreviated Mental Test (AMT) scores of \> 6 out of 10
Exclusion criteria
* Having contraindications to exercise * Physical Activity Readiness Questionnaire (PAR-Q) reveals unsafety * Cannot understand Cantonese
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Fatigue measured by Fatigue Assessment Scale | 6 weeks after the start of intervention | The Fatigue Assessment Scale is a 10-item scale evaluating symptoms of chronic fatigue.exercise test. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Self-efficacy by 6-Item Chronic Disease Self-Efficacy scale | Baseline | A six-item digital self-administered self-efficacy questionnaire will be used to evaluate patients' confidence in performing exercise, managing their own symptoms and emotions and completing their daily tasks. |
| Self-perceived quality of life by The St. George's Respiratory Questionnaire-HK version | Baseline | The St. George's Respiratory Questionnaire-HK version is a self-reported questionnaire. This 50-item disease specific questionnaire assesses 3 domains (symptoms, activity, and impacts). |
| Self-perceived quality of life by The Hong Kong Chinese version Short Form-36 | Baseline | The Hong Kong Chinese version Short Form-36 is a concise 36-item health status questionnaire with good psychometric properties. |
| Cardiac output (L/min) | Baseline | Non-invasive electrodes will be placed on the clavicle and lateral side of chest wall by a non-invasive measurement of cardiac output using the CardioScreen 1000 System. Non-invasive electrodes will be placed on the clavicle and lateral side of chest wall bilaterally |
| Cardiac stroke volume (ml/m2) | Baseline | Non-invasive electrodes will be placed on the clavicle and lateral side of chest wall by a non-invasive measurement of cardiac output using the CardioScreen 1000 System. Non-invasive electrodes will be placed on the clavicle and lateral side of chest wall bilaterally |
| Muscle strength by 30-second double-leg sit-to-stand test (times) | Baseline | Muscle strength will be assessed with the 30-second double-leg sit-to-stand test. If the participant can perform the 30-second single leg sit-to-stand test with pain or difficulty, they will be invited to complete 30-second single-leg sit-to-stand test. The number of completed repetitions will be counted. |
| Forced vital capacity (l) | Baseline | Forced vital capacity (FVC) is the volume of air that can forcibly be blown out after full inspiration |
| FEV1/FVC | Baseline | Ratio of forced expiratory volume in one second and forced vital capacity |
| Peak expiratory flow rate (l/s) | Baseline | Peak expiratory flow (PEF) is the maximal flow (or speed) achieved during the maximally forced expiration initiated at full inspiration |
| Exercise capacity (m) | Baseline | Exercise capacity will be assessed by the 6-minute walk test (6MWT), a submaximal exercise test. |
| Forced expiratory volume in one second (l) | Baseline | FEV1 is the volume of air that can forcibly be blown out in first 1 second, after full inspiration |
Countries
Hong Kong