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Table 4 Classification of sitting and lying time by the ActiGraphGT3X in percentages for each participant (1–5)

From: Which activity monitor to use? Validity, reproducibility and user friendliness of three activity monitors

  Classified as:
Participant Posture Valid seconds Lying Sitting Upright Off (non-wear)
1 Lying 315 22.5%# 1.3% 1.9% 74.3%
Sitting 280 0.0% 33.9%# 63.6% 2.5%
2 Lying 320 24.7%# 5.9% 2.8% 66.6%
Sitting 280 0.0% 0.0%# 100.0% 0.0%
3 Lying 320 59.1%# 0.6% 3.1% 37.2%
Sitting 215 0.0% 0.0%# 100.0% 0.0%
4 Lying 320 32.2%# 0.0% 5.9% 61.9%
Sitting 265 0.0% 98.9%# 1.1% 0.0%
5 Lying 310 16.5%# 5.5% 3.9% 74.2%
  Sitting 280 0.0% 83.2%# 13.2% 3.6%
  1. #Percentage correct classification.
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