The present research work, the objective of the implementation of an ergonomic program to reduce the risks associated with skeletal muscle disorders in the construction company SGA S.R.L, 2018. The methodologies RULA (Rapid assessment of the upper extremities) and REBA (Rapid assessment of the whole body) are used to perform the postural evaluation of activities that involve greater ergonomic risk within the area of operations of the company SGA S.R.L. A total of nine activities considered for the analysis were selected: manual excavation, hoisting with pulley, hoisting with winch, formwork and stripping, scaffolding assembly, electrical wiring, electric welding, cutting and grinding and oxyacetylene operations. The postural evaluation is done to determine the areas of the body more than it is used for the results an ergonomic program is offered to reduce the unfavorable ergonomic postur...