Technical variability of the GT3X accelerometer

Santos‐Lozano, Alejandro; Marín, Pedro J.; Luque, Gema Torres; Ruiz, Jonatan R.; Lucı́a, Alejandro; Garatachea, Nuria

doi:10.1016/j.medengphy.2012.02.005

Cited by 151 publications

(112 citation statements)

References 16 publications

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“…33 Physical activity was measured using the well-validated Actigraph GT3×+ accelerometer. 34 Cutoffs were >3908 cpm for moderate-to-vigorous physical activity, 820 to 3907 cpm for light physical activity, and <820 cpm for sedentary behavior. These cutoffs were specifically developed to measure physical activity and sedentary behavior in 4-year-old children.…”

Section: Secondary Outcomesmentioning

confidence: 99%

Motivational Interviewing to Prevent Childhood Obesity: A Cluster RCT

Döring¹,

Ghaderi

Bohman

et al. 2016

Pediatrics

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The objective was to evaluate a manualized theory-driven primary preventive intervention aimed at early childhood obesity. The intervention was embedded in Swedish child health services, starting when eligible children were 9 to 10 months of age and continuing until the children reached age 4. METHODS:Child health care centers in 8 Swedish counties were randomized into intervention and control units and included 1355 families with 1369 infants. Over ∼39 months, families in the intervention group participated in 1 group session and 8 individual sessions with a nurse trained in motivational interviewing, focusing on healthy food habits and physical activity. Families in the control group received care as usual. Primary outcomes were children's BMI, overweight prevalence, and waist circumference at age 4. Secondary outcomes were children's and mothers' food and physical activity habits and mothers' anthropometrics. Effects were assessed in linear and log-binominal regression models using generalized estimating equations.RESULTS: There were no statistically significant differences in children's BMI (β = -0.11, 95% confidence interval [CI]: -0.31 to 0.08), waist circumference (β = -0.48, 95% CI: -0.99 to 0.04), and prevalence of overweight (relative risk = 0.95, 95% CI: 0.69 to 1.32). No significant intervention effects were observed in mothers' anthropometric data or regarding mothers' and children's physical activity habits. There was a small intervention effect in terms of healthier food habits among children and mothers.CONCLUSIONS: There were no significant group differences in children's and mothers' anthropometric data and physical activity habits. There was, however, some evidence suggesting healthier food habits, but this should be interpreted with caution.

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Section: Secondary Outcomesmentioning

confidence: 99%

Motivational Interviewing to Prevent Childhood Obesity: A Cluster RCT

Döring¹,

Ghaderi

Bohman

et al. 2016

Pediatrics

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show abstract

“…Participants were asked to complete seven days following all three assessment visits. This is a validated method of measuring physical activity with high inter-instrument reliability (0.97 ICC; p< 0.001) 16 . The Freedson adult 1998 cut points were used to determine physical activity intensity 17 .…”

Section: Physical Activity Measurementsmentioning

confidence: 99%

The effects of supervised exercise training 12–24 months after bariatric surgery on physical function and body composition: a randomised controlled trial

et al. 2017

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“…It uses a solid state triaxial accelerometer to collect motion data on three axes; vertical (Y), horizontal right-left (X) and horizontal front-back axis (Z). The Actigraph also includes the vector summed value known as 'vector magnitude' (triaxial) (Santos-Lozano et al, 2012). Acceleration is converted into activity counts that increase linearly with the magnitude of the acceleration.…”

Section: Measurement Of Physical Activitymentioning

confidence: 99%

“…Self-reported PA is shown to have some limitations compared to objectively measured PA, such as susceptibility to over-estimation, recall and cultural difference bias, especially in older adults (Sallis & Saelens, 2000;Santos-Lozano et al, 2012;Washburn, 2000). Studies on objective measures of PA and its association to PA correlates in older adults are therefore needed.…”

Section: Introductionmentioning

confidence: 99%