Four Weeks of 16/8 Time Restrictive Feeding in Endurance Trained Male Runners Decreases Fat Mass, without Affecting Exercise Performance
| Autor: | Christine E. Richardson, Brian A. Davis, Ashley P. Tovar, Nancy L. Keim, Marta D. Van Loan, Gretchen A. Casazza |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Adult
Male Normal diet Clinical Trials and Supportive Activities Population Athletic Performance Article Fat mass 16/8 diet Running Time Young Adult Food Sciences Animal science Time trial Affordable and Clean Energy Clinical Research Reference Values Exercise performance Intermittent fasting sport performance Medicine Time restricted feeding Humans TX341-641 runners education Respiratory exchange ratio Nutrition 6.7 Physical education.field_of_study Nutrition and Dietetics Nutrition. Foods and food supply business.industry intermittent fasting Prevention Evaluation of treatments and therapeutic interventions Fasting Diet Endurance Training Adipose Tissue Athletes Body Composition time restricted feeding business Food Science |
| Zdroj: | Nutrients Volume 13 Issue 9 Nutrients, vol 13, iss 9 Nutrients, Vol 13, Iss 2941, p 2941 (2021) |
| ISSN: | 2072-6643 |
| Popis: | Background: Time restricted Feeding (TRF) is a dietary pattern utilized by endurance athletes, but there is insufficient data regarding its effects on performance and metabolism in this population. The purpose of this investigation was to examine the effects of a 16/8 TRF dietary pattern on exercise performance in trained male endurance runners. Methods: A 4-week randomized crossover intervention was used to compare an 8-h TRF to a 12-h normal diet (ND) feeding window. Exercise training and dietary intake were similar across interventions. Runners completed a dual-energy X-ray absorptiometry (DXA) scan to assess body composition, a graded treadmill running test to assess substrate utilization, and ran a 10 km time trial to assess performance. Results: There was a significant decrease in fat mass in the TRF intervention (−0.8 ± 1.3 kg with TRF (p = 0.05), vs. +0.1 ± 4.3 kg with ND), with no significant change in fat-free mass. Exercise carbon dioxide production (VCO2) and blood lactate concentration were significantly lower with the TRF intervention (p ≤ 0.02). No significant changes were seen in exercise respiratory exchange ratio or 10 km time trial performance (−00:20 ± 3:34 min:s TRF vs. −00:36 ± 2:57 min:s ND). Conclusion: This investigation demonstrated that adherence to a 4-week 16/8 TRF dietary intervention decreased fat mass and maintained fat-free mass, while not affecting running performance, in trained male endurance runners. |
| Databáze: | OpenAIRE |
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