Table 4 Participant-level activity summaries by device using device-specific wear time (Scenario 2, n = 378)
From: Physical activity cut-points for older adults using the Zio XT onboard accelerometer
Sed. + Sleep (hrs/day) | Very Light (hrs/day) | Light (hrs/day) | Moderate – Vigorous | ||
|---|---|---|---|---|---|
(hrs/day) | (min/week) | ||||
Zio XT, 24-Hour Wear Protocol | |||||
25th | 15.2 | 3.94 | 1.49 | 0.19 | 79 |
Median | 16.58 | 4.78 | 2.09 | 0.43 | 182 |
75th | 17.86 | 5.67 | 2.7 | 0.73 | 307 |
ActiGraph GT3X, Waking Wear Protocol | |||||
25th | 16.36 | 3.29 | 1.41 | 0.19 | 80 |
Median | 17.65 | 3.94 | 1.83 | 0.39 | 163 |
75th | 18.73 | 4.77 | 2.47 | 0.67 | 280 |
Pairwise Comparison | |||||
Pear. Cor | 0.809 | 0.714 | 0.699 | 0.764 | |
ICC | 0.700 | 0.551 | 0.677 | 0.765 | |
ICC 95% CI | (0.635, 0.756) | (0.472, 0.627) | (0.610, 0.737) | (0.688, 0.855) | |
Mean Diff | -0.951 | 0.768 | 0.171 | 0.012 | 4.9 |
Mean Diff 95% CI | (-1.068, -0.834) | (0.677, 0.859) | (0.106, 0.237) | (-0.022, 0.045) | (-9.3, 19.0) |
SD Diff | 1.497 | 1.179 | 0.669 | 0.333 | 139.9 |