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In the present work of investigation, the pulse cardiac is monitoring with a heart rate sensor. All data record is obtained of a healthy person group, five junior and one expert electric lineman, Pulse cardiac let show the behavior of the heart when responding to physical effort and stress situation. So that we relate the required physical effort evidenced by a calorific map, the condition of stress due to the fear of falling and the variability of the cardiac pulse. Study is presented in stages. In the first stage, it is possible to demonstrate the increase of the cardiac pulse due to the effort. In the second stage, the increase of the cardiac pulse due to a condition of stress or fear is presented. Finally, in the third stage, the cardiac pulse increases proportionally. Also the cardiac pulse is monitored when descending the concrete post. A variability of the cardiac rhythm between the participants is obtained. It checks that the heart rate after an effort or stress condition becomes unpredictable for different people.

Physical tests in the selection of electrical lineman depending on the cardiac rhythm when working at height for the first time