Validity and Reproducibility of Motion Sensors in Youth

Vries, S.I. de; Hirtum, Helmi W. J. E. M. Van; Bakker, Ingrid; Hopman-Rock, M.; Hirasing, R.A.; Mechelen, Willem van

doi:10.1249/mss.0b013e31818e5819

Cited by 175 publications

(174 citation statements)

References 40 publications

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“…A slightly modified version of the checklist developed by de Vries and colleagues (14,15) was used to assess the methodological quality and results of the studies included [see appendix (table A)]. For the assessment of the methodological quality of the study, information was extracted and evaluated regarding the study design (sample characteristics, protocol, measurements, and statistical analyses).…”

Section: Quality Assessment Of the Studies And Resultsmentioning

confidence: 99%

The repeatability and validity of questionnaires assessing occupational physical activity – a systematic review

Kwak

Proper²,

Hagströmer³

et al. 2010

Scand J Work Environ Health

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Section: Quality Assessment Of the Studies And Resultsmentioning

confidence: 99%

The repeatability and validity of questionnaires assessing occupational physical activity – a systematic review

Kwak

Proper²,

Hagströmer³

et al. 2010

Scand J Work Environ Health

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“…Although we controlled for several potential confounders we cannot be certain that other unmeasured confounders such as dietary intake and genetic variation, have not influenced our observations. It should also be acknowledged that there is poor to moderate agreement between accelerometry and energy expenditure, and that the Actigraph has poor validity against indirect calorimetry and double-labelled water, especially in young Physical activity and body composition D Moliner-Urdiales et al children, 45 whereas less evidence exist for adolescents. It should be mentioned that the cutoff points used in this study to define physical activity intensities are similar to those used in previous studies, 16,31,32 and that seem to be useful and valid for estimating participation in moderate and vigorous physical activity in children and adolescents, particularly time spent in vigorous physical activity.…”

Section: Discussionmentioning

confidence: 99%

Association of objectively assessed physical activity with total and central body fat in Spanish adolescents; The HELENA Study

et al. 2009

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Objectives: To examine the association of objectively assessed physical activity (PA) with markers of total and central body fat in adolescents, and to determine whether meeting the current PA recommendations (X60 min day À1 of at least moderate intensity PA) is associated with reduced levels of total and central body fat. Subjects/Methods: A total of 365 Spanish adolescents aged 12.5-17.5 years participated in this cross-sectional study. PA was assessed by accelerometry and expressed as average PA (counts per minute), and min day À1 of light, moderate, moderate to vigorous (MVPA) and vigorous PA. MVPA was dichotomized into o60 min day À1 and X60. Total body fat was measured by DXA, BodPod and the sum of six skinfolds. Central body fat was measured by DXA at three regions (R1, R2 and R3), and waist circumference. Results: All markers of central body fat were negatively associated with vigorous PA (Po0.01) after controlling for sex, age and pubertal status. Abdominal adiposity measured at R1, R2 and R3 was also negatively associated with MVPA (Pp0.001), and with average PA (Po0.01). All markers of total body fat were negatively associated with vigorous PA (Po0.01), MVPA (Po0.01) and average PA (Po0.05). Adolescents engaged on at least 60 min day À1 MVPA presented lower levels of total (Po0.05) and central body fat (Pp0.01). Conclusions:The results suggest that vigorous PA may have a greater effect on preventing obesity in adolescents than does PA of lower intensity, whereas both average PA and at least moderate PA may have an impact on total and central body fat in youth.

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“…36 The validity of the Acti-Watch for capturing youth physical activity compares favorably to that of other motion sensors and is rated moderate-to-good for preschool-aged children. 39 Activity counts indicating the intensity of physical activity were recorded for 1-minute epochs. Accelerometer data were then summarized for the entire 6-day period, including an estimation of the mean activity counts per minute during waking hours.…”

Section: Physical Activity and Anthropometry Measuresmentioning

confidence: 99%

Is the Environment Near Home and School Associated with Physical Activity and Adiposity of Urban Preschool Children?

et al. 2011

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Preventing sedentary behavior and adiposity in childhood has become a public health priority. We examined urban social and built environment characteristics as correlates of physical activity and anthropometry among 428 preschool children from low-income families in New York City. We measured the children's height, weight, skinfold thicknesses, physical activity by accelerometer, and covariates. We geocoded home and Head Start center addresses and estimated the following for an area within 0.5 km of those two locations using a detailed geographic database: neighborhood composition, walkability, crime and traffic safety, and aesthetic characteristics. Generalized estimating equations were used to examine the associations of area characteristics with physical activity or adiposity, adjusted for characteristics of the child, mother, and home. Participants were 2-5 years old, 53% female, 83% Hispanic, and 43% either overweight or obese. Of the walkability indicators, land use mix was associated with physical activity (26 more activity counts/minute per standard deviation increase in mixed land use, p=0.015) and subway stop density was associated with adiposity (1.2 mm smaller sums of skinfold thicknesses sum per standard deviation increase in subway stop density, p=0.001). The pedestrian-auto injury rate, an indicator of traffic safety problems, was associated with physical activity and adiposity (16 fewer activity counts/minute, p=0.033, and 1.0 mm greater skinfold thickness per standard deviation increase in pedestrian-auto injuries, p=0.018). Children living in areas with more street trees were more physically active and those living in areas with more park access had smaller skinfolds. However, many of the tested associations were not statistically significant and some trends were not in the hypothesized direction. Efforts to enhance walkability, safety, and green spaces in the local environment may be relevant to physical activity and adiposity, and therefore to the health of preschool-aged children from low-income families.

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Validity and Reproducibility of Motion Sensors in Youth

Abstract: Compared to the review performed in 2004, there is increased evidence for the clinimetric quality of pedometers and accelerometers in youth. Most motion sensors seem reproducible, valid, and feasible in assessing physical activity in youth.

Cited by 175 publications

References 40 publications

The repeatability and validity of questionnaires assessing occupational physical activity – a systematic review

The repeatability and validity of questionnaires assessing occupational physical activity – a systematic review

Association of objectively assessed physical activity with total and central body fat in Spanish adolescents; The HELENA Study

Is the Environment Near Home and School Associated with Physical Activity and Adiposity of Urban Preschool Children?

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