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Pedometer error by body category. Steps were manually counted for normal (n = 16) and overweight (n = 11) children. The manual counts were compared to the steps observed on the pedometers and AS during a 5-minute period. Error is the mean ± SEM for all speeds, by weight category. *Significantly greater error in overweight children compared to normal children, P < 0.0001. **Significantly greater error in overweight children compared to lean children, P < 0.0002.
