This non-randomized clinical study aims to evaluate whether a multicomponent physical exercise program with integrated postural hygiene can improve functional capacity, postural risk, musculoskeletal symptoms, health-related quality of life, and body composition in adult and older women. Eighty participants are allocated to three groups: an experimental group performing exercise with integrated postural hygiene, a reference group with previous postural hygiene training performing the same intervention, and a control group performing the same exercise program without the postural hygiene component. Participants are assessed before, during, and after the intervention, as well as at follow-up. The broader research project also includes a separate cross-sectional observational component designed to describe postural habits, musculoskeletal symptoms, and functional health-related variables in women enrolled in a community-based Maintenance Gymnastics program.