Public employees face a growing array of professional challenges, and psychological capital (PC) has emerged as a valuable resource to address them. Workplace Supervised Exercise (WSE) pro-grams can improve physical fitness and personal resources, though their adoption in organiza-tions is limited. This study examines the impact of a long-term WSE program on the psychologi-cal capital of public administration employees. Fifty-five participants completed PC question-naires and attended at least 40% of the sessions; 49.1% were women, and 40% were over 50 years old (age range: 24-73 years). Using a quasi-experimental design without a control group, the nine-month program (October to June) included measurements in October, February, and June. The data show gender-specific variations in PC patterns. Among men, incremental increases were observed over the three measurement intervals, with statistical significance achieved only in self-efficacy and hope. Among women, an upward trend was observed between October and February without statistical significance, followed by a slight decline. The results suggest that the WSE program may enhance personal resources, particularly hope and self-efficacy, highlighting the importance of tailoring WSE programs to the specific characteristics of the target group.