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Table 5 Summary of heuristic thresholds selected for all relatively- and absolutely-defineda intensity indicators by age groups

From: Cadence (steps/min) and relative intensity in 21 to 60-year-olds: the CADENCE-adults study

  Intensity Indicators
Age Group Relative Moderate Intensity (≥ 64%HRmax,
≥ 40%HRR, ≥ 12 RPE)
Absolute Moderate Intensitya
(≥ 3.0 METs)
Relative Vigorous Intensity (≥ 77%HRmax,
≥ 60%HRR, ≥ 14 RPE)
Absolute Vigorous Intensitya
(≥ 6 METs)
Group 1 (2130 years) 120 100 135 130
Group 2 (3140 years) 120 100 130 130
Group 3 (3140 years) 115 100 125 130
Group 4 (4150 years) 110 100 120 130
  1. HR maximum [HRmax] = 220 - age. Heart rate reserve [HRR] = HRmax - HRresting. METs Metabolic equivalents. RPE Rate of Perceived Exertion. 1 MET = 3.5 mL·kg−1·min−1 of O2 uptake. aCadence-based heuristic thresholds for absolutely-defined intensity are retrieved from Tudor-Locke et al. [20, 21]