COMPARISON OF THE AEROBIC CONTRIBUTIONS TO WINGATE ANAEROBIC TESTS PERFORMED WITH 2 DIFFERENT LOADS

Background. The purpose of the present study was to compare the aerobi c contribution of the Wingate anaerobic test by increasing the test lo ad and power output. Methods. Setting: The study was performed in the Physiology Department of the Faculty of Medicine, Selcuk University. P articipants: Thirty sedentary male university students volunteered to this study. Experiments: The subjects performed two Wingate tests agai nst resistance of 75 g.kg(-1) and 95 g.kg(-1) body weight on Monark 81 8E bicycle ergometer. Breath-by-breath oxygen consumption rates were m easured using an automated metabolic measurement chart (Sensormedics 2 900). Aerobic contribution was determined by dividing energy equivalen ce of net oxygen consumption to the total work.Results. The mean total work values obtained from tests performed at 75 g.kg(-1) and 95 g.kg( -1) loads were 13.9+/-1.5 kjoules and 14.5+/-1.8 kjoules (t=2.32, p=0. 03). Mean total oxygen consumptions were 765+/-105 ml and 770+/-110 mi , respectively (t=0.24, p=0.81). Assuming 20 % mechanical efficiency f or both tests, aerobic contributions were calculated as 19.5+/-3.7 % a nd 18.9+/-3.7 %, respectively (t=1.01, p=0.30). Conclusions. Although the power outputs of the two tests were different, the difference betw een aerobic contributions was not statistically significant. So, it wa s failed to say that the increase in the power outputs might be relate d to higher contribution of anaerobic processes. However, if different mechanical efficiencies could be used, relationship between aerobic c ontributions of two tests might have been different.