Fig. 2

Bland-Atman plots: a Bland-Altman plot demonstrating step count agreement between estimated steps taken counted from the ChargeHR purple and ChargeHR black estimated steps for 2MWT(1) and 2MWT(2). b Bland-Altman plot demonstrating step count agreement between estimated steps taken counted from the Flex blue and Flex black estimated steps for 2MWT(1) and 2MWT(2). Dashed line is the mean difference and the solid bold lines the 95% confidence intervals for each diagram. Note that the scale on the y-axis is not the same between the graphs