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Table 5 Coefficients of determination (R 2 ) between each activity monitor and metabolic cart determined MVPA

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 (Setting) Moderate PA Vigorous PA Moderate and vigorous PA
SC-StepRX (100, 120) 0.01 0.25* 0.64*
SC-StepRX (110, 130) 0.36* 0.45* 0.82*
SC-StepRX (120, 140) 0.59* 0.51* 0.74*
Walk4Life MVP (100, 120) 0.01 0.25* 0.69*
NL-1000 (4–9) - - 0.82*
Actical 0.45* 0.24* 0.78*
ActiGraph GT3X (Evenson) 0.09* 0.21* 0.71*
ActiGraph GT3X (Treuth) 0.29* 0.18* 0.77*
ActiGraph GT3X (Freedson) 0.37* 0.18* 0.81*
  1. *statistically significant association, p <0.05.
  2. PA: Physical activity.
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