Aslankeser, ZubeydeBalci, Sukru Serdar2020-03-262020-03-2620180043-96302080-2234https://dx.doi.org/10.1515/bhk-2018-0018https://hdl.handle.net/20.500.12395/36983Study aim: It is well known that substrate oxidation rates are increased by exercise. The present study had two main objectives: firstly, to examine the effect of a single exhaustive exercise session on post-exercise substrate oxidation and energy expenditure; and secondly, to determine the differences between athletes and non-athletes. Material and methods: Eighteen healthy male athletes (mean +/- SD age; 19.38 +/- 2.26 years, VO2max; 60.57 +/- 3.90 ml.kg(-1).min(-1), n = 8) and non-athletes (age; 20.30 +/- 1.26 years, VO2max; 44.97 +/- 5.43 ml.kg(-1).min(-1), n = 10) volunteered to participate in the study. After an overnight fast, subjects performed a single sprint exercise session on a cycle ergometer with individual loads (0.075 kg per body weight) until volitional exhaustion. Energy expenditure (EE) and the substrate oxidation rate were measured at rest and during the post-exercise recovery period using indirect calorimetry. Results: Exhaustive exercise significantly increased post-exercise fat oxidation, energy expenditure and contribution of fat to EE (p < 0.05). Also, it significantly decreased post-exercise carbohydrate (CHO) oxidation and the contribution of CHO to EE (p < 0.05). However, the changes in the substrate oxidation rate and EE after the exercise test were not different between the groups (p > 0.05). Conclusions: The study results suggest that a single short-duration exhaustive exercise session causes a higher fat oxidation rate during recovery than at rest, whereas training status did not affect this situation.en10.1515/bhk-2018-0018info:eu-repo/semantics/openAccessFat oxidationExhaustive exerciseEnergy expenditurePost-exercise metabolismArticle101118126#YOKQ3WOS:000443686800002N/A