Table 2 Reliability of accelerometer-based methods, sorted by methodological study quality, study result rating and quality of evidence
Study | Study populationa | Outcome(s) & Setting | Time interval | Methodological study qualityb | Placement | Device-based methodc | Results | Study result ratingd | Quality of evidencee |
|---|---|---|---|---|---|---|---|---|---|
Hager et al. (2016) [42] | Toddlers n = 24 * 2 Ac Age = 24.5 ± 5.2 (14.7 to 35.5) months Sex = 41.7% girls | Activity counts Laboratory (structured activities) | n.a | A | Non-dominant ankle; side-by-side | Ac-cts-omni-60 | ICC? = .98 | + | Low |
Aadland & Johannessen (2015) [65] | Preschoolers n = 91 Age = 4.07 ± 0.5 (3 to 5) years Sex = 51% girls | Total PA, SB, LPA and MVPA in min/day and % of valid wear time Free-living | 14 days | A | Not reported | AG-Ev-VA-10 | ICC−(1,1) ≥ .75 for all outcomes across all wear criteria (≥ 6, 8 and 10 h/day and ≥ 3 and 5 days/week) Except for SB (min/day): ICC−(1,1) .61 to .81 Higher ICC−(1,1) for percentages than absolute values ICC−(1,1) ≥ .80 (≥ 6 and ≥ 8 h/day) > 7 days required ICC−(1,1) ≥ .80 (≥ 10 h/day) within 7 days: 3.9 to 7.1 days | + (SB + ; PA +) | Low |
Greenspan, Cunha, & Lobo (2021) [29] | Infants n = 16 Age = 3.1 ± 1.1 (1.8 to 5) months Sex = 51% girls | Body position: supine, reclined, upright, inclined, and prone Free-living (structured play) | 0 days | I | Trunk | GG-Gr-HA/VA/DA-1 | κw = .89, 95% CI (.87 to .91) Supine: agreement = 89.2% Reclined: agreement = 72.6% Upright: agreement = 90.9% Inclined: agreement = 84.6% Prone: agreement = 91.1% | + | Very low |