RT Journal Article T1 Impact of a hybrid exercise intervention on subjective happiness and self-perceived health of workers: a case study T2 Impacto de una intervención híbrida basada en el ejercicio físico sobre la felicidad subjetiva y la percepción de la propia salud de los trabajadores: un estudio de caso. A1 Núñez-Sánchez, José Manuel A1 Einsle, Carmen Sarah A1 López-Fernández, Jorge A1 Jiménez Díaz-Benito, Víctor K1 Promoción de la salud en el trabajo K1 Trabajadores - Ejercicio físico AB Introduction: Physical activity-based workplace wellness programs (WPPA) are effective in improving health, well-being, and productivity among workers. Despite this, smaller organizations often face challenges in implementing these initiatives. This study assesses the effects of a structured hybrid exercise program, delivered by fitness centers, on subjective happiness, self-perceived health, and physical metrics in Spanish workers during the post-COVID period.Methods: A pilot study was conducted over three months with 44 participants (45.5% male, 54.5% female) who were sedentary or overweight. The program included a combination of online and in-person exercise sessions. Pre- and post-intervention data were collected using validated tools, such as the SF-36 for self-perceived health and the Subjective Happiness Scale. Statistical methods included paired t-tests and multivariate analyses.Results: The intervention led to significant improvements in subjective happiness (p = 0.034; d = 0.33) and several dimensions of self-perceived health, including vitality and general health (p < 0.01; d > 0.50). Overall physical and mental health scores showed moderate enhancements, reflecting the program's effectiveness.Discussion: The findings demonstrate the potential of hybrid exercise interventions as a practical solution for promoting well-being and happiness in small and medium-sized enterprises that cannot afford to build workplace gyms. PB Frontiers YR 2025 FD 2025-09-05 LK https://hdl.handle.net/10630/45858 UL https://hdl.handle.net/10630/45858 LA eng NO Núñez-Sánchez JM, Einsle CS, LópezFernández J and Jiménez Díaz-Benito V (2025) Impact of a hybrid exercise intervention on subjective happiness and self-perceived health of workers: a case study. Front. Sports Act. Living 7:1569455. doi: 10.3389/fspor.2025.1569455 DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 18 mar 2026