ArticleMedicine and science in sports and exercise2018
Protocol for Objective Measurement of Infants' Physical Activity using Accelerometry.
Article in Medicine and science in sports and exercise, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
15 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Wearable-Sensor-Based Physical Activity and Sleep in Children with Down Syndrome Aged 0-5 Years: A Systematic Review.Sensors (Basel, Switzerland) · 2025Pooled it
- Infants' and toddlers' physical activity and sedentary time as measured by accelerometry: a systematic review and meta-analysis.The international journal of behavioral nutrition and physical activity · 2020Pooled it
- Characterizing infant leg movements using 72-h wearable sensor data: Descriptive analysis from a large, heterogenous sample of infants 0-2 months of age from the HEALthy Brain and Child Development Study.Infant behavior & development · 2026Article
- Advancing Wrist-Worn Accelerometry for Measurement of Infant Motor Behavior.Developmental psychobiology · 2025Article
- Physical activity and BMI inequalities throughout childhood: a Brazilian birth cohort study.Lancet regional health. Americas · 2025Article
- Lessons from 13 years of accelerometry measurements in five Brazilian cohorts: methodological aspects.Cadernos de saude publica · 2025Article
- Accelerometer Thresholds for Estimating Physical Activity Intensity Levels in Infants: A Preliminary Study.Sensors (Basel, Switzerland) · 2024Article
- Tummy Time Tracking: Examining Agreement Between Parent Recall and Direct Observation in Infants.The American journal of occupational therapy : official publication of the American Occupational Therapy Association · 2024Observational
- Behavioral, Environmental, and Demographic Factors Associated with Objectively Measured Physical Activity in Infants.Childhood obesity (Print) · 2022Article
- Development of circadian rest-activity rhythms during the first year of life in a racially diverse cohort.Sleep · 2022Article
- How Many Days are Necessary to Represent Typical Daily Leg Movement Behavior for Infants at Risk of Developmental Disabilities?Sensors (Basel, Switzerland) · 2020Article
- Physical Activity and Adiposity in a Racially Diverse Cohort of US Infants.Obesity (Silver Spring, Md.) · 2020Article
- Physical activity, sedentary time and cardiometabolic health indicators among Mexican children.Clinical obesity · 2020Article
- Accelerometric Gait Analysis Devices in Children-Will They Accept Them? Results From the AVAPed Study.Frontiers in pediatrics · 2020Article
- Objectively measured physical activity in one-year-old children from a Brazilian cohort: levels, patterns and determinants.The international journal of behavioral nutrition and physical activity · 2019Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
Abstract
purposeThis study aimed to evaluate methods for infants' physical activity measurement based on accelerometry, including the minimum number of measurement days and placement of a wrist or ankle device. We also evaluated the acceptability of the device among infants and mothers.
methodsA cross-sectional mixed-methods study was conducted on a convenience sample of 90 infants. Physical activity was measured using the Actigraph GT3X+ accelerometer placed on the wrist and/or ankle for 7 consecutive days (worn for 24 h), and a qualitative interview was performed to verify acceptability. The intraclass correlation coefficient (ICC) method and the Bland and Altman's dispersion diagram were used to verify the minimum number of measurement days. All analyses were stratified by walking status.
resultsThe mean (SD) age was 12.9 (1.70) months; the mean acceleration varied between 25.8 mg (95% confidence interval (CI), 14.3-52.7) and 27.3 mg (95% CI, 17.9-44.5) using the wrist placement, and between 24.9 mg (95% CI, 10.6-48.4) and 26.2 mg (95% CI, 11.7-65.6) using the ankle placement. The ICC results showed a lower acceleration variability between days among infants incapable of walking; they achieved an ICC of 0.80 with 1 d of measurement in both placements. Among those capable of walking, the minimum number of days to achieve an ICC of 0.80 was 2 d measured at the wrist (0.85; 95% CI, 0.71-0.93) and 3 d measured at the ankle (0.92; 95% CI, 0.84-0.96). The qualitative results pointed to the wrist placement as the preferred placement among the overall sample.
conclusionsTwo and three measurement days with the accelerometer placed on the wrist and ankle, respectively, seemed to adequately represent a week of measurement. The accelerometer placed on the wrist had better acceptance by the infants and mothers.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.