Disadvantages of methods for power indication during treadmill exercise for ergospirometry test

This paper will show basics and importance of ergospirometry. Parameters that affect the patient while running and walking will be shown together with principle for determining the Work Load during the test. The essence of the study and research was to analyze various formulas implemented for determining the power [W] on the basis of patient treadmill training during the ergospirometry performance test. Four types of calculation in methods of obtaining power (WorkLoad) measurement that are used in the majority of device manufacturers for ergospirometry were analyzed for the load during the ergospirometry test. It is shown that Jaeger formulas compared to ATS, Bruce and Modified ATS Formula, have the best results for different conditions of the experiment, and that they fit in the most testing conditions. This research has great importance for doctors that interpretate result of test, since using the best possible formula for determining Work Load is of critical importance and it can have influence on determining need for further tests that sometimes include invasive surgery. Paper also displays shortcomings of mentioned formulas and can be used as a reference when determining which formula is to be used for parameter calculation in a variety of situations.