Fig. 2From: Criterion validity for step counting in four consumer-grade physical activity monitors among older adults with and without rollatorsExcluded data points as a percentage of total data points sorted on brand and position. Higher percentage equals more excluded data. Chi [2]-tests revealed a significant difference between brands (p < 0.001) hip and wrist positions (p < 0.001) but not between left and right positions (p = 0.816)Back to article page