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Table 1 Outputs from the AM7164, GT1M and GT3X+ among 16 Norwegian 9-year-olds during 3 days of free-living data assessment (mean and SD)

From: Comparison of three generations of ActiGraph activity monitors under free-living conditions: do they provide comparable assessments of overall physical activity in 9-year old children?

Mean (SD)

AM7164

GT1M

GT3X+

Wear time (accepted minutes/day)

767.7

(69.7)

759.7

(69.7)

761.9

(69.8)

Total physical activity (mcpm)

821.5

(287.3)

735.3

(245.1)

750.6

(260.4)

Time (min/day) spent at intensities

Sedentary time <100 cpm

429.9

(72.0)

456.9

(72.8)

455.5

(75.6)

Light activity 100 < 2000 cpm

249.3

(41.5)

221.7

(48.9)

222.6

(45.5)

Moderate activity 2000 < 6000 cpm

71.5

(27.3)

69.4

(28.0)

71.7

(28.2)

Vigorous activity ≥6000 cpm

17.0

(9.1)

11.6

(7.6)

12.1

(8.0)

MVPA ≥2000 cpm

88.5

(33.0)

81.0

(30.2)

83.8

(31.3)

  1. Mcpm: mean counts per minute, MVPA: moderate to vigorous physical activity.