Current Knowledge about ActiGraph GT9X Link Activity Monitor Accuracy and Validity in Measuring Steps and Energy Expenditure: A Systematic Review
Over recent decades, wearable inertial sensors have become popular means to quantify physical activity and mobility. However, research assessing measurement accuracy and precision is required, especially before using device-based measures as outcomes in trials. The GT9X Link is a recent activity mon...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-01-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/24/3/825 |
| _version_ | 1827354546892963840 |
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| author | Quentin Suau Edoardo Bianchini Alexandre Bellier Matthias Chardon Tracy Milane Clint Hansen Nicolas Vuillerme |
| author_facet | Quentin Suau Edoardo Bianchini Alexandre Bellier Matthias Chardon Tracy Milane Clint Hansen Nicolas Vuillerme |
| author_sort | Quentin Suau |
| collection | DOAJ |
| description | Over recent decades, wearable inertial sensors have become popular means to quantify physical activity and mobility. However, research assessing measurement accuracy and precision is required, especially before using device-based measures as outcomes in trials. The GT9X Link is a recent activity monitor available from ActiGraph, recognized as a “gold standard” and previously used as a criterion measure to assess the validity of various consumer-based activity monitors. However, the validity of the ActiGraph GT9X Link is not fully elucidated. A systematic review was undertaken to synthesize the current evidence for the criterion validity of the ActiGraph GT9X Link in measuring steps and energy expenditure. This review followed the PRISMA guidelines and eight studies were included with a combined sample size of 558 participants. We found that (1) the ActiGraph GT9X Link generally underestimates steps; (2) the validity and accuracy of the device in measuring steps seem to be influenced by gait speed, device placement, filtering process, and monitoring conditions; and (3) there is a lack of evidence regarding the accuracy of step counting in free-living conditions and regarding energy expenditure estimation. Given the limited number of included studies and their heterogeneity, the present review emphasizes the need for further validation studies of the ActiGraph GT9X Link in various populations and in both controlled and free-living settings. |
| first_indexed | 2024-03-08T03:49:12Z |
| format | Article |
| id | doaj.art-d36871f0607d4abca68bb5093eea67c1 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-08T03:49:12Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-d36871f0607d4abca68bb5093eea67c12024-02-09T15:21:57ZengMDPI AGSensors1424-82202024-01-0124382510.3390/s24030825Current Knowledge about ActiGraph GT9X Link Activity Monitor Accuracy and Validity in Measuring Steps and Energy Expenditure: A Systematic ReviewQuentin Suau0Edoardo Bianchini1Alexandre Bellier2Matthias Chardon3Tracy Milane4Clint Hansen5Nicolas Vuillerme6AGEIS, Université Grenoble Alpes, 38000 Grenoble, FranceAGEIS, Université Grenoble Alpes, 38000 Grenoble, FranceAGEIS, Université Grenoble Alpes, 38000 Grenoble, FranceAGEIS, Université Grenoble Alpes, 38000 Grenoble, FranceAGEIS, Université Grenoble Alpes, 38000 Grenoble, FranceAGEIS, Université Grenoble Alpes, 38000 Grenoble, FranceAGEIS, Université Grenoble Alpes, 38000 Grenoble, FranceOver recent decades, wearable inertial sensors have become popular means to quantify physical activity and mobility. However, research assessing measurement accuracy and precision is required, especially before using device-based measures as outcomes in trials. The GT9X Link is a recent activity monitor available from ActiGraph, recognized as a “gold standard” and previously used as a criterion measure to assess the validity of various consumer-based activity monitors. However, the validity of the ActiGraph GT9X Link is not fully elucidated. A systematic review was undertaken to synthesize the current evidence for the criterion validity of the ActiGraph GT9X Link in measuring steps and energy expenditure. This review followed the PRISMA guidelines and eight studies were included with a combined sample size of 558 participants. We found that (1) the ActiGraph GT9X Link generally underestimates steps; (2) the validity and accuracy of the device in measuring steps seem to be influenced by gait speed, device placement, filtering process, and monitoring conditions; and (3) there is a lack of evidence regarding the accuracy of step counting in free-living conditions and regarding energy expenditure estimation. Given the limited number of included studies and their heterogeneity, the present review emphasizes the need for further validation studies of the ActiGraph GT9X Link in various populations and in both controlled and free-living settings.https://www.mdpi.com/1424-8220/24/3/825ActiGraph GT9X Linkaccuracyprecisionstepenergy expenditurewearable devices |
| spellingShingle | Quentin Suau Edoardo Bianchini Alexandre Bellier Matthias Chardon Tracy Milane Clint Hansen Nicolas Vuillerme Current Knowledge about ActiGraph GT9X Link Activity Monitor Accuracy and Validity in Measuring Steps and Energy Expenditure: A Systematic Review Sensors ActiGraph GT9X Link accuracy precision step energy expenditure wearable devices |
| title | Current Knowledge about ActiGraph GT9X Link Activity Monitor Accuracy and Validity in Measuring Steps and Energy Expenditure: A Systematic Review |
| title_full | Current Knowledge about ActiGraph GT9X Link Activity Monitor Accuracy and Validity in Measuring Steps and Energy Expenditure: A Systematic Review |
| title_fullStr | Current Knowledge about ActiGraph GT9X Link Activity Monitor Accuracy and Validity in Measuring Steps and Energy Expenditure: A Systematic Review |
| title_full_unstemmed | Current Knowledge about ActiGraph GT9X Link Activity Monitor Accuracy and Validity in Measuring Steps and Energy Expenditure: A Systematic Review |
| title_short | Current Knowledge about ActiGraph GT9X Link Activity Monitor Accuracy and Validity in Measuring Steps and Energy Expenditure: A Systematic Review |
| title_sort | current knowledge about actigraph gt9x link activity monitor accuracy and validity in measuring steps and energy expenditure a systematic review |
| topic | ActiGraph GT9X Link accuracy precision step energy expenditure wearable devices |
| url | https://www.mdpi.com/1424-8220/24/3/825 |
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