Infants’ and toddlers’ physical activity and sedentary time as measured by accelerometry: a systematic review and meta-analysis

Brianne A. Bruijns; Stephanie Truelove; Andrew M. Johnson; Jason Gilliland; Patricia Tucker

doi:10.1186/s12966-020-0912-4

International Journal of Behavioral Nutrition and Physical Activity

Table 1 Summary Table for Included Studies - Infants (<12mo; n = 5)

From: Infants’ and toddlers’ physical activity and sedentary time as measured by accelerometry: a systematic review and meta-analysis

Authors (Year)	Study Design	Sample Size, Mean Age (mo; SD), Range	Average Wear-Time min/day (SD), Non-Wear Criteria	Monitoring Time	Accelerometer Type & Epoch Length	Accelerometer Placement	Physical Activity counts/min (SD)	Study Quality
Canada (n = 1)
Borkhoff et al. (2015) [45]	Cross-sectional	N = 20	552 (54), ≥60 min of consecutive zeros	12 h, 7 days	Actical, 2-s	Waist	78.2 (30.8)	10
Borkhoff et al. (2015) [45]	Cross-sectional	Age = 8.2 (1.8), 4–10	552 (54), ≥60 min of consecutive zeros	12 h, 7 days	Actical, 2-s	Waist	78.2 (30.8)	10
China (n = 1)
Jia et al. (2018) [49]	Cross-sectional	N = 143	NR, NR	14 h, 7 days	ActiGraph GT3X, 60-s	Wrist	2580.5 (475.7)	10
Jia et al. (2018) [49]	Cross-sectional	Age = 9 (0.8), 9	NR, NR	14 h, 7 days	ActiGraph GT3X, 60-s	Wrist	2580.5 (475.7)	10
Taiwan (n = 1)
Wang et al. (2019) [51]	Cross-sectional	N = 183	NR, ‘Device removal’ time replaced with mean activity counts	24 h, 7 days	Actiwatch 2, 30-s	Ankle	432.3 (124.8) ^a	10
Wang et al. (2019) [51]	Cross-sectional	Age = 6.6 (0.4), 6		24 h, 7 days	Actiwatch 2, 30-s	Ankle	432.3 (124.8) ^a	10
United States (n = 2)
Tsai et al. (2011) [40]	Cross-sectional	N = 22	NR, ‘Device removal’ replaced with the adjacent activity counts, external motion time was removed from analysis	16 h, 7 days	Actiwatch, 30-s	Ankle	144.0 (66.0) ^a	9
Tsai et al. (2011) [40]	Cross-sectional	Age = 1.6 (0.6), 0.5–2.5		16 h, 7 days	Actiwatch, 30-s	Ankle	144.0 (66.0) ^a	9
Pitchford et al. (2017) [39]	Cross-sectional	N = 23	556.2 (157.2), ≥2 min of consecutive zeros matching accelerometer logged ‘device removal’ within a 30-min window	Daytime, 7 days	ActiGraph GT3X, 15-s	Ankle and Wrist	1758.6 (609.6) ^{a b}	9
Pitchford et al. (2017) [39]	Cross-sectional	Age = 6.3 (3.6), 1–12		Daytime, 7 days	ActiGraph GT3X, 15-s	Ankle and Wrist	1758.6 (609.6) ^{a b}	9

NR not reported, mo months; ^aCalculation made to convert to counts/min; ^bMean of ankle and wrist counts produced

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