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Fatigue is a state of difficulty maintaining voluntary activity. Cortisol, which is essential for stress regulation, can cause tissue damage when elevated for long periods of time, which is a common problem for office workers in stressful environments. Sleep quality is important for health and cognitive function, while sleep deprivation increases the risk of physical and mental health disorders. Gyrokinesis combines circular, spiral, and wave movements influenced by yoga, tai chi, and ballet to provide a calming effect on the sympathetic nervous system. This study investigated the effects of Gyrokinesis exercise on lower extremity edema, muscle strength, fatigue, and sleep quality in sedentary office workers. Twenty-seven adult women aged 20–40 years were randomly assigned to a Gyrokinesis exercise group (n=14) or a control group (n=13). The exercise group participated in 60-min Gyrokinesis sessions twice a week for 8 weeks, while the control group used elastic compres-sion stockings during their working hours. Results showed a significant decrease in fatigue and an improvement in sleep quality in the exercise group. Cortisol and serotonin levels showed a significant between-group interaction effect, with within-group changes observed only in the exer-cise group. Sleep quality indices improved significantly over time. In con-clusion, Gyrokinesis exercise has the potential to improve physical and psychological well-being in sedentary office workers by positively influ-encing fatigue, sleep quality, and related hormone levels.