The effects of a single bout of exercise on resting energy expenditure and respiratory exchange ratio

• Published in: European journal of applied physiology 2004-08, Vol.92 (4-5), p.393-398
• Main Authors: Jamurtas, A Z, Koutedakis, Y, Paschalis, V, Tofas, T, Yfanti, C, Tsiokanos, A, Koukoulis, G, Kouretas, D, Loupos, D
• Format: Article
• Language: English
• Subjects: Adult; Body Composition - physiology; Body Weight - physiology; Creatine Kinase - metabolism; Dietary Carbohydrates - metabolism; Dietary Fats - metabolism; Dietary Proteins - metabolism; Energy Metabolism - physiology; Exercise - physiology; Humans; Lung - metabolism; Lung - physiology; Male; Nutrition; Nutritional Physiological Phenomena; Oxidation-Reduction; Oxygen Consumption - physiology; Pulmonary Gas Exchange - physiology; Running - physiology; Thyroid Hormones - metabolism; Weight Lifting - physiology
• ISSN: 1439-6319; 1439-6327
• DOI: 10.1007/s00421-004-1156-8

We investigated the effects of a single bout of aerobic and resistance exercise of similar relative intensity and duration on resting energy expenditure (REE) and substrate utilisation. Ten young healthy males volunteered [age 22 (1.8) years, weight 76 (7.9) kg, height 176 (4.1) cm, percentage body fat 10.5 (4.0)%; mean (SEM)]. They randomly underwent three conditions in which they either lifted weights for 60 min at 70-75% of 1-RM (WL), ran for 60 min at 70-75% of maximal oxygen intake (R) or did not exercise (C). REE and substrate utilisation, determined via respiratory exchange ratio ( R), were measured prior to exercise, and 10, 24, 48 and 72 h post-exercise. It was revealed that REE was significantly elevated ( P