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. 2019 Summer;71(3):197–206. doi: 10.3138/ptc.2018-25

Table 4.

ICCs and SEMs for the Charge HR and Fitbit One Steps Taken and Energy Expenditure Variables during the mCAFT Phase

Steps taken and energy expenditure
Variable ICC SEM 95% CI
Steps taken 0.97 83.00 0.96,1,021.00
Energy expenditure 0.77 14.70 0.65,140.00

ICC = intra-class correlation coefficient; SEM = standard error of measurement; Charge HR = Fitbit Charge Heart Rate; mCAFT = modified Canadian Aerobic Fitness Test.