Fatigability in Long COVID-19

The overall goal of this project is to advance the understanding of underlying mechanisms impacting performance fatigability and perceived fatigability in Veterans with post-COVID-19 fatigue and explore the safety and feasibility of a home-based "minimal-dose" resistance exercise program in this population. The central hypothesis is that declines in force capacity, skeletal muscle oxygen extraction, and affective responses to physical activity offer potential mechanisms through which fatigability is increased in Veterans with post-COVID-19 fatigue. Moreover, home-based resistance exercise delivered remotely may provide a safe and feasibility treatment option for targeting neuromuscular and neurobehavioral factors influencing fatigability severity in this population.