Effect of Short-Term Different Diet Modifications on Post-Exercise Metabolism Following a Sprint Interval Exercise
Makaleler > Tam Makale · 2025
Yazarlar: Dilek SEYİDOĞLU YÜKSEL, Görkem Aybars BALCI, Hakan As, Özgür ÖZKAYA, Gülbin RUDARLI
JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS, SCI Expanded İndekslerine Giren Dergi, Uluslararası, 2025, cilt 1, ss 1-1
DOI: 10.23736/S0022-4707.25.16201-4
Özet
<h2><strong>Abstract</strong></h2><p><strong>Background: </strong>A single sprint interval training (SIT) session is known to have positive effects on fat metabolism by increasing postexercise oxygen consumption (V̇O<inf>2</inf>) and fat oxidation. A short-term high-fat diet intervention has positive effects on fat oxidation pre- and postsubmaximal exercise sessions. However, there is no study on the effects of the combination of diet and a SIT session on fat oxidation. The study aimed to investigate the effect of different short-term diet modifications on fat oxidation following a SIT session.</p><p><strong>Methods: </strong>Nine healthy active males (24.3±5.27 years) participated in this investigation. Following isocaloric normal (NOR), high carbohydrate (CHO), and high fat (FAT) diet interventions with a weekly interval, participants performed an SIT session (6 repeats × Wingate all-out sprints with 4.5 minutes of rest in-between bouts). V̇O<inf>2</inf> and V̇CO<inf>2</inf> were measured by a gas analyzer throughout a 2-hour recovery period.</p><p><strong>Results: </strong>There was no significant time × session interaction for fat oxidation, V̇O<inf>2</inf>, total energy expenditure, and respiratory exchange ratio. The resting fat oxidation (g.min-1) was statistically greater in the FAT diet (0.12±0.04) than in the CHO (0.08±0.02, P=0.012) and NOR (0.08±0.02, P=0.009) diets. Only a 2-hour postexercise fat oxidation (g.min-1) (0.22±0.05) was statistically higher for the FAT diet compared to the CHO diet (0.15±0.05; P=0.006).</p><p><strong>Conclusions: </strong>While the study showed significant differences in fat oxidation between diets, the magnitude of the difference was so small (~0.04 g/min) that it may not have a truly effective 'real world' implication for burning extra calories.</p>