ArticleMedicine and science in sports and exercise2013
Walking objectively measured: classifying accelerometer data with GPS and travel diaries.
Article in Medicine and science in sports and exercise, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 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
44 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Pooled it
- Technologies That Assess the Location of Physical Activity and Sedentary Behavior: A Systematic Review.Journal of medical Internet research · 2015Pooled it
- Investigating the Role of the Environment on Physical Activity Interventions (the InSPACE Project): Protocol for a Pooled Secondary Analysis of Randomized Controlled Trials.JMIR research protocols · 2026Article
- Characterizing Longitudinal Patterns in Cognition, Mood, And Activity in Depression With 6-Week High-Frequency Wearable Assessment: Observational Study.JMIR mental health · 2024Observational
- Cross-Sectional Study of Location-Based Built Environments, Physical Activity, Dietary Intake, and Body Mass Index in Adult Twins.International journal of environmental research and public health · 2023Article
- Examining the impacts of public transit on healthy aging through a natural experiment: study protocols and lessons learned from the Active El Paso project.Frontiers in public health · 2023Article
- Impact of a Light Rail Transit Line on Physical Activity: Findings from the Longitudinal Travel Assessment and Community (TRAC) Study.Journal of transport & health · 2022Article
- Cross-sectional associations between neighbourhood walkability and objective physical activity levels in identical twins.BMJ open · 2022Article
- Physical Activity Impacts of an Activity-Friendly Community: A Natural Experiment Study Protocol.Frontiers in public health · 2022Article
- Validity of a Global Positioning System-Based Algorithm and Consumer Wearables for Classifying Active Trips in Children and Adults.Journal for the measurement of physical behaviour · 2021Article
- Walkability measures to predict the likelihood of walking in a place: A classification and regression tree analysis.Health & place · 2021Article
- GPS-based built environment measures associated with adult physical activity.Health & place · 2021Article
- Measurement of neighborhood-based physical activity bouts.Health & place · 2021Article
- Beyond the bus stop: where transit users walk.Journal of transport & health · 2019Article
- Cohort Profile: TWINS study of environment, lifestyle behaviours and health.International journal of epidemiology · 2019Article
- Putting the Boom, Boom, Boom into Physical Activity and Health: Music Festivals as a Positive Health Alternative to Couch Fandom.International journal of environmental research and public health · 2019Article
- Higher residential and employment densities are associated with more objectively measured walking in the home neighborhood.Journal of transport & health · 2019Article
- Capturing fine-scale travel behaviors: a comparative analysis between personal activity location measurement system (PALMS) and travel diary.International journal of health geographics · 2018Article
- The Association Between Park Facilities and Duration of Physical Activity During Active Park Visits.Journal of urban health : bulletin of the New York Academy of Medicine · 2018Article
- Increased Walking's Additive and No Substitution Effect on Total Physical Activity.Medicine and science in sports and exercise · 2018Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
Abstract
purposeThis study developed and tested an algorithm to classify accelerometer data as walking or nonwalking using either GPS or travel diary data within a large sample of adults under free-living conditions.
methodsParticipants wore an accelerometer and a GPS unit and concurrently completed a travel diary for seven consecutive days. Physical activity (PA) bouts were identified using accelerometry count sequences. PA bouts were then classified as walking or nonwalking based on a decision-tree algorithm consisting of seven classification scenarios. Algorithm reliability was examined relative to two independent analysts' classification of a 100-bout verification sample. The algorithm was then applied to the entire set of PA bouts.
resultsThe 706 participants' (mean age = 51 yr, 62% female, 80% non-Hispanic white, 70% college graduate or higher) yielded 4702 person-days of data and had a total of 13,971 PA bouts. The algorithm showed a mean agreement of 95% with the independent analysts. It classified PA into 8170 walking bouts (58.5 %) and 5337 nonwalking bouts (38.2%); 464 bouts (3.3%) were not classified for lack of GPS and diary data. Nearly 70% of the walking bouts and 68% of the nonwalking bouts were classified using only the objective accelerometer and GPS data. Travel diary data helped classify 30% of all bouts with no GPS data. The mean ± SD duration of PA bouts classified as walking was 15.2 ± 12.9 min. On average, participants had 1.7 walking bouts and 25.4 total walking minutes per day.
conclusionsGPS and travel diary information can be helpful in classifying most accelerometer-derived PA bouts into walking or nonwalking behavior.
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.