EXERCISE-BASED REHABILITATION AFTER ICU HOSPITALIZATION
Post-Acute COVID-19 Syndrome; Rehabilitation Exercise; Physical Exercise
Introduction: Post-hospitalization physical rehabilitation in Intensive Care Unit (ICU) patients plays a fundamental role in recovering functionality and quality of life. During hospitalization, prolonged immobility combined with the severity of the clinical condition can result in muscle weakness, reduced cardiovascular capacity, and impairments in respiratory functions. Implementing physical exercises during and after hospitalization can be crucial to mitigate these effects and promote effective rehabilitation. Objective: This study aimed to analyze the effectiveness of a physical rehabilitation program in patients who underwent prolonged ICU stays. Methodology: Various theoretical-methodological approaches were adopted, organizing the review as follows: (a) Cardiopulmonary and Functional Rehabilitation in COVID-19 Survivors; (b) Effects of a Physical Rehabilitation Program on the Physical Fitness of Post-COVID Individuals: a Protocol for Systematic Review and Meta-Analysis; (c) Rehabilitation Through Physical Exercise in Post-COVID Individuals: a Systematic Review; and (d) A Randomized Experimental Study on the Impact of an Exercise-Based Rehabilitation Program after Prolonged ICU Stay. Results: In the general editorial article, it was proposed that post-COVID-19 rehabilitation begin within the first three months, aiming to improve lung function, exercise tolerance, and reduce symptoms of anxiety and depression. Evaluating health conditions and creating a personalized program is essential for the patient's functional and emotional return to society. The systematic review article indicated that physical activity is effective in the rehabilitation of people recovering from COVID-19, promoting physical, physiological, and psychological improvements. Strength training, with exercises for both upper and lower limbs, had the most significant impact, with three sets of 10 repetitions recommended, complementing respiratory training. In the randomized experimental study, results revealed significant differences in the 6-minute walk test (6MWT) between the GEm and GEmTMI groups before the intervention (p=0.043) and in the Physical Activity Index (IPAQ) after the intervention (p=0.002). For the total group (GEm + GEmTMI), significant improvements were observed in all variables analyzed after the six-week program, including quality of life (SF-36), functional capacity (PCFS), physical activity level (IPAQ), respiratory muscle strength, among others. Notable improvements were seen in SF-36 parameters (Physical Functioning: p=0.006 and Social Functioning: p=0.009), PCFS (p=0.011), IPAQ (p=0.012), and in the 6MWT (m), 5Rep-Seg Test, 1min TSL, TUG, Manual Grip (Right), Manual Grip (Left), PEmáx and PImáx tests, all with p<0.001. Conclusion: Physical rehabilitation based on multicomponent exercises, with or without inspiratory muscle training, resulted in significant improvements in physical activity levels, functional capacity, dynamic balance, neuromuscular fitness, respiratory strength, and quality of life in patients, both in physical and social aspects.