Introduction:

the working performance of certain jobs determines a high level of physical load from the part of the workers, for what the necessity is imposed of having an appropriate food diet to preserve the physical and mental health.

Objective:

to design a food diet for welders and smiths starting from the energy expense in working activities.

Materials and methods:

a field study was carried out starting from a probabilistic sample of welders and smiths from the Industrial Railroad Enterprise Jose Valdes Reyes. A procedure was performed allowing to determine the energy expenditure of the activities they develop. Several techniques like direct observation, interviews, brain storm, direct measure of physiological variable and equations were used to calculate the energy expenditure.

Results:

three diet variants were designed adjusted to the energy expenditure of the three working places of the before mentioned enterprise.

Conclusions:

it is expected the application of the designed diets will contribute to keeping good health of the workers in those working places.

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