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Brachial flow‐mediated dilation (FMD) improved in the group randomized to access to the pedometer and website, but not in either of the other groups. (P<0.001 for time, P=0.004 for time×group interaction by ANOVA). FMD% did not significantly change in group 1 (5.6±2.5% to 6.3±2.7%, P=0.10) or group 2 (6.5±3.0% to 6.7±3.9%, P=0.85), but significantly increased in group 3 (4.7±2.5% to 8.0±4.3%, *P=0.001 within the group).
