The DOI matches its Crossref record; 37 of the 38 references it cites were found in a registry or an index.
Activity-Monitor Accuracy in Measuring Step Number and Cadence in Community-Dwelling Older Adults
Abstract
The primary purpose of this study was to investigate the accuracy of the acti vPAL physical activity monitor in measuring step number and cadence in older adults. Two pedometers (New-Lifestyles Digi-Walker SW-200 and New-Lifestyles NL-2000) used in clinical practice to count steps were simultaneously evaluated. Observation was the criterion measure. Twenty-one participants (65-87 yr old) recruited from community-based exercise classes walked on a treadmill at 5 speeds (0.67, 0.90, 1.12, 1.33, and 1.56 m/s) and outdoors at 3 self-selected speeds (slow, normal, and fast). The absolute percentage error of the ac ti v PAL was <1% for all treadmill and outdoor conditions for measuring steps and cadence. With the exception of the slowest treadmill speed, the NL-2000 error was <2%. The SW-200 was the least accurate device, particularly at slower walking speeds. The ac tivPAL monitor accurately recorded step number and cadence. Combined with its ability to identify primary postures, the activPAL might be a useful and versatile device for measuring activity in older adults.
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“It accurately counts steps down to 1.5 mph (40.2 m/min) [21] and only underestimates steps by 3.5% at 1.0 mph (26.8 m/min) [22].”
From Step Counting: A Review of Measurement Considerations and Health-Related Applications (2017) · cites this paper as [21]
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Metadata
- Authors
- Grant, P. M., Dall, P. M., Mitchell, S. L., & Granat, M. H.
- Affiliations
- Glasgow Caledonian University (GB)
- Venue
- Journal of Aging and Physical Activity
- Publisher
- Human Kinetics
- Published
- 2008-04
- Volume
- 16
- Issue
- 2
- Pages
- 201-214
- ISSN
- 1063-8652 (ISSN-L)
- 1543-267X
- OpenAlex
- W2125871320
- Cited by
- 297
- References
- 38
- Citations by year
- 2026: 3 · 2025: 15 · 2024: 23 · 2023: 14 · 2022: 21 · 2021: 16 · 2020: 23 · 2019: 21 · 2018: 19 · 2017: 13 · 2016: 25 · 2015: 23 · 2014: 19 · 2013: 12 · 2012: 18
- FWCI
- 7.01
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Aging and Physical Activity (publishedVersion)
- PubMed (publishedVersion)
- ResearchOnline (submittedVersion)
- Funders
- Glasgow Caledonian University
- University of Glasgow
- Topics
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Physical Activity and Health
- Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Context-Aware Activity Recognition Systems
- Health Sciences › Health Professions › Physical Therapy, Sports Therapy and Rehabilitation › Balance, Gait, and Falls Prevention
- Keywords
- activPAL, pedometers, step count accuracy, older adults, community-dwelling older adults, walking speed, treadmill walking, outdoor walking, physical activity monitoring, posture recognition
- MeSH terms
- Acceleration, Aged, Aged, 80 and over, Female, Gait, Humans, Male, Posture, Reproducibility of Results, Exercise, Walking, Monitoring, Ambulatory
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