The energy expenditure benefits of reallocating sedentary time with physical activity: a systematic review and meta-analysis.

Autor: Biswas, Aviroop, Oh, Paul I., Faulkner, Guy E., Bonsignore, Alis, Pakosh, Maureen T., Alter, David A.
Předmět:
Zdroj: Journal of Public Health; Jun2018, Vol. 40 Issue 2, p295-303, 9p
Abstrakt: Background We compared direct and daily cumulative energy expenditure (EE) differences associated with reallocating sedentary time to physical activity in adults for meaningful EE changes. Methods Peer-reviewed studies in PubMed, Medline, EMBASE, CINAHL, PsycINFO, Cochrane Central Register of Controlled Trials and Cochrane Database of Systematic Reviews were searched from inception to March 2017. Randomized and non-randomized interventions with sedentary time and EE outcomes in adults were included. Study quality was assessed by the National Heart Lung and Blood Institute tool, and summarized using random-effects meta-analysis and meta-regression. Results In total, 26 studies were reviewed, and 24 studies examined by meta-analysis. Reallocating 6–9 h of sedentary time to light-intensity physical activity (LIPA) (standardized mean difference [SMD], 2.501 [CI: 1.204–5.363]) had lower cumulative EE than 6–9 h of combined LIPA and moderate-vigorous intensity physical activity (LIPA and moderate-vigorous physical activity [MVPA]) (SMD, 5.218 [CI: 3.822–6.613]). Reallocating 1 h of MVPA resulted in greater cumulative EE than 3–5 h of LIPA and MVPA, but <6–9 h of LIPA and MVPA. Conclusions Comparable EE can be achieved by different strategies, and promoting MVPA might be effective for those individuals where a combination of MVPA and LIPA is challenging. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index