Machines and equipment should be designed with the proper application of human factor principles in mind. Even partial design modification of machine components such as the walking tractor handle could result in decreased operator effort, increased comfort, and better operator and consumer acceptance.

Towards this goal of alleviating the suffering of farmers, this study was conducted to develop a walking tractor handle specification that would require minimum muscular electric sparks from the operator.

As for the handle diameter, using a 35 mm diameter handle would be most advantageous to the worker. It had shown remarkably lower muscular electric spark requirement than the rest of the tested handle sizes.

Furthermore, the results indicated that increasing the handle elevation from 800 to 950 mm would drastically increase muscular electric spark requirement. As such, handle designs would be best at lower working elevations of 650 mm. And although handle width does not show statistically different effects, it would be best to confine it at the moment to the moderate level of 620 mm. Likewise, the minimum handle angles of -12 degrees with the horizontal and -2 degrees mis-alignment angle would best be preferred since it requires numerically lower increase in muscular electric sparks.