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Article Dans Une Revue International Journal of Sport Nutrition and Exercise Metabolism Année : 2020

Impact of Exercise Timing on Chemosensory Response, Appetite, and Energy Intake in Lean Males

Résumé

Background: High-intensity exercise can have an anorectic impact, leading to negative energy balance. Several studies have reported that the practice of physical activity could also cause a shift in perceptions and preferences, causing a change in food intakes. Objective: This study aimed to question to what extent the timing of exercise in relation to a meal could have an impact on olfaction and gustation, appetite, and food choices. Methods: Twelve males aged 25 (4) years with a body mass index of 22.4 (2.0) kg/m2 attended two experimental visits in a counterbalanced fashion. The participants consumed a standardized breakfast between 7:00 and 7:30 a.m. and were subjected to smell and taste tests upon arrival at the laboratory (8:30 a.m.). In the EX9:40 visit, the participants performed a 30-min exercise session (70% of maximum oxygen uptake) at 9:40 a.m., followed by a 90-min sedentary break. In EX10:30, the participants first took part in the 90-min sedentary break and then performed the 30-min exercise session at 10:30 a.m. Taste and smell tests were performed again at 11:40 a.m., immediately followed by an ad libitum buffet-style meal. Visual analog scales were used to report appetite sensations during the session and satiety quotients around the lunch. Results: There was no difference in energy intakes between the EX9:40 (596 [302] kcal) and EX10:30 (682 [263] kcal) conditions (p = .459). There was no condition effect for the taste and smell sensations (all ps > .05), appetite sensation, or satiety quotients around the meal (all ps > .05). Conclusion: Exercise timing in the morning had no effect on taste and smell perceptions, appetite sensations, or energy intakes.
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Dates et versions

hal-03013149 , version 1 (18-11-2020)

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Kapria-Jad Josaphat, Vicky Drapeau, David Thivel, Marie-Eve Mathieu. Impact of Exercise Timing on Chemosensory Response, Appetite, and Energy Intake in Lean Males. International Journal of Sport Nutrition and Exercise Metabolism, 2020, 30 (2), pp.145-152. ⟨10.1123/ijsnem.2019-0237⟩. ⟨hal-03013149⟩
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