Table 2

Prevalence of youth accumulating 60 min or more of moderate- and vigorous-intensity activity per day measured by accelerometry in studies with more than 1000 participants

ReferenceDesignSettingAgeMVPA thresholdMVPA definitionPrevalence sufficiently active
Riddoch et al38Cross-sectional (N=2185)Denmark, Estonia, Norway, Portugal9–15 years9 years: 1000 cpm≥3 METs9 years: boys, 97.4%; girls, 97.6%
15 years: 1500 cpm15 years: boys, 81.9%; girls, 62%
Nader et al58Longitudinal (N=1032)USA9–15 yearsAge dependent*≥3 METs9 and 11 years: >96% (weekdays)
12 years: 83.4% (weekdays)
15 years: 30.6% (weekdays)
Troiano et al37Cross-sectional (N=1778)USA6–19 yearsAge dependent*≥4 METs6–11 years: boys, 48.9%; girls, 34.7%
12–15 years: boys, 11.9%; girls, 3.4%
16–19 years: boys, 10.0%; girls, 5.4%
Riddoch et al35Cross-sectional (N=5595)UK12 years3600 cpm≥4 METsBoys, 5.1%
Girls, 0.4%
Steele et al36Cross-sectional (N=1862)UK10 years2000 cpmNABoys, 81.5%
Girls, 59.4%
Owen et al39Cross-sectional (N=2071)UK10 years2000 cpmNABoys, 76%
Girls, 53%
  • * Age-dependent equation METs=2.757+(0.0015×cpm)−(0.08957×age (years))−(0.000038×cpm×age (years)).54

  • Cpm, counts per minute; METs, metabolic equivalents; MVPA, moderate- and vigorous-intensity physical activity.