Protective Correlation of Weekend Catch-up Sleep with Obesity: A systematic review and dose-response meta-analysis

eview question / Objective The aim of this systematic review and meta-analysis was to determine the association between weekend catch-up sleep (WCS) and obesity, and explored the dose-response effect between these two factors. Condition being studiedThe protective effect of compensatory sleep on weight and obesity remains controversial.The aim of this systematic review and meta-analysis was to determine the association between weekend catch-up sleep (WCS) and obesity, and explored the doseresponse effect between these two factors. METHODSSearch strategy Two researchers (T.L. and X.W.) carried out the literature search with the aid of a qualified medical reference librarian (S.Y.).Four English-language databases (Web of Science, PubMed, Cochrane Central Register of Controlled Trials, and Embase) were searched to determine all potential studies related to the WCS published from database inception to December 1st, 2025.These search terms were utilized: WCS, weekend recovery sleep, sleep compensation, catch-up sleep, weekend sleep extension, sleep debt recovery, and sleep rebound. Participant or population Population-based research works.Intervention Weekend Catch-up Sleep.Comparator No Weekend Catch-up Sleep.Study designs to be included Cross-sectional or prospective research works and randomized controlled trials (RCTs).