Author(s) |
Hackett, Daniel
Hagstrom, Amanda
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Publication Date |
2017
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Abstract |
It remains unclear whether training in fasted compared to fed states leads to greater weight loss and whether this practice results in beneficial or detrimental changes in body composition. We conducted a systematic review to examine the effect of overnight-fasted versus fed exercise on weight loss and body composition. Seven electronic databases were searched using terms related to fasting and exercise. Inclusion criteria were: randomised and non-randomised comparative studies; published in English; included healthy adults; compared exercise following an overnight fast to exercise in a fed state; used a standardized pre-exercise meal for the fed condition; and measured body mass and/or body composition. A total of five studies were included involving 96 participants. Intra-group analysis for the effect of fasted and fed aerobic exercise revealed trivial to small effect sizes on body mass. The inter-group effect for the interventions on body mass was trivial. Intra-group effects were small for % body fat and trivial for lean mass in females, with trivial effects also found for the inter-groups analyses. Whilst this is the first systematic review and meta-analysis to investigate this topic, caution is warranted when interpreting the findings due to the limited number of studies and hence insufficient data.
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Citation |
Journal of Functional Morphology and Kinesiology, 2(4), p. 1-11
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ISSN |
2411-5142
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Link | |
Publisher |
MDPI AG
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Rights |
Attribution 4.0 International
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Title |
Effect of Overnight Fasted Exercise on Weight Loss and Body Composition: A Systematic Review and Meta-Analysis
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Type of document |
Journal Article
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Entity Type |
Publication
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Name | Size | format | Description | Link |
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administrative/MODS.xml | 4.363 KB | MODS.xml | View document | |
openpublished/EffectHagstrom2017JournalArticle.pdf | 602.371 KB | application/pdf | Published version | View document |