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Table 2 Estimates of mean exposure values, variance components and autocorrelation parameters in the parent data set

From: Accuracy and precision of variance components in occupational posture recordings: a simulation study of different data collection strategies

Parameter Average elevation %time >90° %time <15°
μ 29.2° 4.7 32.5
σ 2 BS 22.2 (°)2 3.0 152.8
σ 2 BD 9.2 (°)2 4.0 65.6
σ 2 WD 234.9 (°)2 164.7 616.1
ρ(1) 0.55 0.52 0.51
ρ(2) 0.37 0.34 0.33
ρ(3) 0.29 0.26 0.26
ρ(4) 0.23 0.22 0.22
ρ(5) 0.19 0.17 0.18
ρ(10) 0.09 0.08 0.09
  1. μ, mean value; σ 2 BS, σ 2 BD , σ 2 WD, variances between subjects, between days and within days; ρ(h), sample autocorrelation at lag h.