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Interrupting Sitting Time in Postmenopausal Women: Protocol for the Rise for Health Randomized Controlled Trial

Interrupting Sitting Time in Postmenopausal Women: Protocol for the Rise for Health Randomized Controlled Trial

Given the multiple correlated biomarker outcomes, we will create a composite outcome derived as a sum of z-scores of the (possibly transformed) markers. A few previous interventions aimed at decreasing sedentary time in adults or increasing standing observed effect sizes between 0.39 and 0.49 on fasting insulin. Thus, we based sample size estimates on an assumed effect size of 0.4 at 3 months.

Sheri J J Hartman, Lindsay W Dillon, Andrea Z LaCroix, Loki Natarajan, Dorothy D Sears, Neville Owen, David W Dunstan, James F Sallis, Simon Schenk, Matthew Allison, Michelle Takemoto, Alexandra M Herweck, Bao Nguyen, Dori E Rosenberg

JMIR Res Protoc 2021;10(5):e28684