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Table 6 Sensitivity and specificity of each activity monitor for moderate and vigorous physical activity

From: Validity of SC-StepRx pedometer-derived moderate and vigorous physical activity during treadmill walking and running in a heterogeneous sample of children and youth

Monitor Moderate PA Vigorous PA Moderate and Vigorous PA
  Sensitivity Specificity Sensitivity Specificity Sensitivity Specificity
SC-StepRx (100, 120) 16.4 89.9 100.0 74.3 98.8 84.2
SC-StepRx (110, 130) 44.3 97.1 100.0 88.6 92.9 96.5
SC-StepRx (120, 140) 27.9 98.6 45.8 98.9 77.6 99.1
Walk4Life MVP (100, 120) 16.4 91.3 95.8 77.1 97.7 87.7
NL-1000 (4–9) - - - - 85.9 97.4
Actical 80.3 84.1 37.5 97.1 91.8 91.2
ActiGraph GT3X (Evenson) 26.2 92.0 70.8 82.9 87.1 92.1
ActiGraph GT3X (Treuth) 39.3 92.0 41.7 92.6 76.5 98.3
ActiGraph GT3X (Freedson) 62.3 89.1 37.5 94.9 87.1 96.5
  1. PA: Physical activity.
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