ArticleSensors (Basel, Switzerland)2021
Validity of Hip and Ankle Worn Actigraph Accelerometers for Measuring Steps as a Function of Gait Speed during Steady State Walking and Continuous Turning.
Article in Sensors (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 2 of them syntheses that pooled it.
What it found
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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
23 citing papers in PubMed, 2 syntheses or guidelines pooled it, 27 citations in OpenAlex.
- Current Knowledge about ActiGraph GT9X Link Activity Monitor Accuracy and Validity in Measuring Steps and Energy Expenditure: A Systematic Review.Sensors (Basel, Switzerland) · 2024Pooled it
- Criterion validity of ActiGraph monitoring devices for step counting and distance measurement in adults and older adults: a systematic review.Journal of neuroengineering and rehabilitation · 2022Pooled it
- A Novel Approach to Characterizing Patterns of Real-World Upper-Extremity Use During Walking and Activities of Daily Living in People with Subacute Stroke.Sensors (Basel, Switzerland) · 2026Article
- Development and Validation of Accelerometer-Based Machine Learning Models for Classifying Walking, Running, and Jumping Activities.Sensors (Basel, Switzerland) · 2026Article
- Exploring dyspnea-related anxiety and physical activity in U.S. veterans with chronic obstructive pulmonary disease.Journal of behavioral medicine · 2026Article
- Comparisons of hip-worn and ankle-worn accelerometers on measuring physical activity and their correlations with perceived activity level in community-dwelling older adults.Gait & posture · 2026Article
- Physical activity associations with physical function and body composition among community-dwelling older adults in Japan: The Kyotango Longevity Cohort Study.Geriatrics & gerontology international · 2025Article
- Associations Between Clinical Inflammatory Risk Markers, Body Composition, Heart Rate Variability, and Accelerometer-Assessed Physical Activity in University Students with Overweight and Obesity.Sensors (Basel, Switzerland) · 2025Article
- Plasma markers of neurodegeneration, latent cognitive abilities and physical activity in healthy aging.Scientific reports · 2024Article
- Validity of the Actigraph-GT9X accelerometer for measuring steps and energy expenditures in heart failure patients.PloS one · 2024Article
- Development of a multi-wear-site, deep learning-based physical activity intensity classification algorithm using raw acceleration data.PloS one · 2024Article
- Gait Variability at Different Walking Speeds.Journal of functional morphology and kinesiology · 2023Article
- How should we measure physical activity after stroke? An international consensus.International journal of stroke : official journal of the International Stroke Society · 2023Article
- Shared and distinct factors underlying in-hospital mobility of older adults in Israel and Denmark (97/100).BMC geriatrics · 2023Article
- Article
- Feasibility and efficacy of an activity-monitoring approach using pedometer in patients undergoing subacute rehabilitation: A pilot study.Frontiers in rehabilitation sciences · 2023Article
- Establishing Accelerometer Cut-Points to Classify Walking Speed in People Post Stroke.Sensors (Basel, Switzerland) · 2022Article
- Associations of Daily Steps and Step Intensity With Incident Diabetes in a Prospective Cohort Study of Older Women: The OPACH Study.Diabetes care · 2022Article
- Methodological heterogeneity biases physical activity metrics derived from the Actigraph GT3X in multiple sclerosis: A rapid review and comparative study.Frontiers in rehabilitation sciences · 2022Article
- Validation of Two Activity Monitors in Slow and Fast Walking Hospitalized Patients.Rehabilitation research and practice · 2022Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study aimed to investigate the accuracy and reliability of hip and ankle worn Actigraph GT3X+ (AG) accelerometers to measure steps as a function of gait speed. Additionally, the effect of the low frequency extension filter (LFEF) on the step accuracy was determined. Thirty healthy individuals walked straight and walked with continuous turns in different gait speeds. Number of steps were recorded with a hip and ankle worn AG, and with a Stepwatch (SW) activity monitor positioned around the right ankle, which was used as a reference for step count. The percentage agreement, interclass correlation coefficients and Bland-Altmann plots were determined between the AG and the reference SW across gait speeds for the two walking conditions. The ankle worn AG with the default filter was the most sensitive for step detection at >0.6 m/s, whilst accurate step detection for gait speeds < 0.6 m/s were only observed when applying the LFEF. The hip worn AG with the default filter showed poor accuracy (12-78%) at gait speeds < 1.0 m/s whereas the accuracy increased to >87% for gait speeds < 1.0 m/s when applying the LFEF. Ankle worn AG was the most sensitive to measure steps at a vast range of gait speeds. Our results suggest that sensor placement and filter settings need to be taken into account to provide accurate estimates of step counts.
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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 Socratic graph.