Alexandre Evangelista
Nove de Julho University, Brazil
Title: The reliability and validity of DISQ® equipment on ventilatory parameters and caloric cost at treadmill test in healthy subjects
Biography
Biography: Alexandre Evangelista
Abstract
Introduction & Aim: Recent studies have shown that traditional exercise training may not be considered the faithful strategy to maximize caloric expenditure or enhance cardiorespiratory adaptations in several modalities of physical activities, especially running. Thus, different equipment has been built as alternative strategies, such as DISQ® equipment. However, there is a lack of physiological responses information about this equipment. In order to clarify it, the purpose of this study is to compare physiologic responses in a cardiorespiratory exercise test with DISQ® equipment.
Methodology & Theoretical Orientation: Fifteen (15) healthy subjects were voluntarily randomized and submitted to two maximal treadmill incremental cardiopulmonary exercise test with (Disq case) and without (control case) DISQ® equipment. The following parameters were evaluated by heart rate (HR), anaerobic threshold (An), respiratory compensation point (RCP) and exercise peak (EP): Ox (oxygen consumption: VO2 (L.min) and VO2 (ml.kg.min-1)) and CE (CHO, fat and total caloric expenditure-TCE).
Findings: No differences (p>0.05) were found on An, PCR and EP respectively to HR. In the Ox, no differences were found on An and PCR of Disq-case in comparison to control-case. However, the EP was different in the Ox. Finally, there was no difference between the two conditions in CE from CHO, fat and total caloric expenditure.
Conclusions: The maximal heart rate and oxygen consumption did not differ with the equipment. Some rational explanation for this can be addressed to higher peripheral fatigability induced by the equipment.