The *ergonomía is the group of knowledges of multidisciplinary character applied stop the *adecuación of the products, systems and artificial surroundings to the needs, limitations and characteristics of the his users, optimising the #efficacy, security and welfare. In the labour field commissions of the design of workplaces, tools and tasks, so that they coincide with the physiological characteristics, *anatómicas, psychological and the capacities of the hard-working that will see *involucrados. The labour physiotherapy boards the attention to the health in the labour pathology and preventive aspects.