There are many ways which can control energy expenditure and reduce fatigue. But all methods do not suit to every situation. The person performing the activities and the type of activity are deciding factors in choosing the methods of controlling energy expenditure.
In any given job, energy consumption can be reduced by,
Developing an improved mental attitude towards the work to be done.
Eliminating unnecessary steps or combining new steps and processes in work
Arranging steps in any activities in a sequence
Using efficient equipment and other materials for convenience.
Arranging needed equipment and other materials according to convenience.