The Application of High Intensity Interval Training in Atrial Fibrillation: A Literature Review

Atrial fibrillation (AF) is a significant challenge for cardiovascular health, and exercise interventions have gained attention as potential therapeutic approaches. This literature review aims to provide a comprehensive overview of studies investigating the effects of high intensity interval training (HIIT) on individuals with AF. The limited studies, ranging from randomized controlled trials to case series, have been analysed in order to evaluate the impact of HIIT on several health parameters such as quality of life, aerobic capacity, physiological and cardiovascular parameters in individuals with AF. Emphasis was placed on understanding the safety of these programs, especially considering adverse events and limitations associated with small number of participants and the differences in study design. The findings of these studies reveal promising outcomes related to reduced AF symptoms severity, improved aerobic capacity, quality of life and positive effects on physiological and cardiovascular parameters. The review underscores the need for well-designed studies with larger sample sizes to improve the generalizability of results and address adequately safety concerns. Moreover, it highlights the current research gaps, including a standardized HIIT protocol for individuals with AF and the absence of long-term follow ups data. In conclusion, this review synthesizes existing knowledge on HIIT in AF population, offering insights into its potential benefits, safety considerations and other aspects for future research.