Table 2.
Comparing fitness tracker devices to direct observation for steps
| Fitness Tracker (M(SD) steps) | Direct observationa | Flex blue | Flex black | Flex ICC (95%CI) | ChargeHR purple | ChargeHR black | ChargeHR ICC (95% CI) |
|---|---|---|---|---|---|---|---|
| 2MWT(1) | 225 (18.8) | 198 (30.9) | 196 (23.9) | 0.77 (0.57,0.88) | 217 (28.7) | 219 (25.3) | 0.95 (0.92,0.97) |
| 2MWT(2) | 228 (18.5) | 195 (28.8) | 198 (26.5) | 0.76 (0.53,0.88) | 216 (29.0) | 219 (29.5) | 0.90 (0.83,0.95) |
Note. M mean, SD standard deviation and ICC: Intra Class Correlation, 95%CI is 95% Confidence Interval
aFrom Rater 1