期刊
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
卷 18, 期 14, 页码 -出版社
MDPI
DOI: 10.3390/ijerph18147227
关键词
intermittent fasting; Wingate test; body composition; training
资金
- Fundacao para a Ciencia e Tecnologia [UIDB/00447/2020]
- Universidade de Lisboa [C00246e]
In this study, the effects of short- and long-term time-restricted feeding on performance and body composition in well-trained men were explored. It was found that after four weeks of TRF, there was an increase in WnT mean power and total work output, as well as an increase in fat-free mass. However, there was no correlation between change in fat-free mass and WnT mean power after TRF. TRF did not elicit any changes in WnT performance or body composition one week post-intervention.
Using a crossover design, we explored the effects of both short- and long-term time-restricted feeding (TRF) vs. regular diet on Wingate (WnT) performance and body composition in well-trained young men. Twelve healthy male physical education students were included (age: 22.4 +/- 2.8 years, height: 174.0 +/- 7.1 cm, body mass: 73.6 +/- 9.5 kg, body mass index: 24.2 +/- 2.0 kg/m(2)). The order of dieting was randomized and counterbalanced, and all participants served as their own controls. TRF was limited to an 8-h eating window and non-TRF involved a customary meal pattern. Participants performed WnT tests and body composition scans at baseline, post-one and post-four weeks of the assigned diet. Before testing, participants were asked to fill out a dietary record over four consecutive days and were instructed to continue their habitual training throughout the study. Energy intake and macronutrient distribution were similar at baseline in both conditions. WnT mean power and total work output increased post-four weeks of TRF. Both conditions were similarly effective in increasing fat-free mass after four weeks of intervention. However, there was no correlation between change in fat-free mass and WnT mean power after TRF. TRF did not elicit any changes in WnT performance or body composition one week post-intervention. Thus, long-term TRF can be used in combination with regular training to improve supramaximal exercise performance in well-trained men.
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