Effects of an intervention program with health education and hatha yoga on the health of professionals with musculoskeletal symptoms.

INTRODUCTION: Musculoskeletal and mental disorders are relevant in the workers' disease process, and ergonomic interventions that include guidance and physical exercise consist of strategies of health promotion. Integrative and complementary practices are presented as a possibility of promoting comprehensive care and yoga consists of a therapeutic alternative. OBJECTIVE: To evaluate the effects of an intervention including educational measures and hatha yoga in musculoskeletal pain, disability, and stress in professionals of a university hospital. METHODS: We selected 125 professionals with musculoskeletal symptoms of intensity ≥ 1 who did not practice yoga and randomly assigned them to intervention (n = 63) and control (n = 62) groups, requesting answers to the following questionnaires: initial characterization, the Nordic Musculoskeletal Questionnaire and a numeric scale, the Pain Disability Questionnaire, and the Perceived Stress Scale. The intervention group went through a 12-week program with educational measures and hatha yoga. At the end of the study period, both groups answered to the questionnaires once again. We compared data before and after the intervention and between groups. RESULTS: Both groups presented improvements after 12 weeks, but the difference between mean results obtained in the first and second data collections revealed that the levels of pain, disability, and stress decreased more strongly in the intervention group than in the control group. Considering that the intervention group began the program in worse clinical conditions, the program led to a reduction in the difference between groups, but this was not enough for the intervention group to reach better results than the control. CONCLUSIONS: The intervention promoted improvements in the intensity of pain, disability, and stress among the participants of the intervention group. Similar programs could be explored in the promotion of occupational health.