Is Sitting Always Inactive and Standing Always Active? A Simultaneous Free-Living activPal and ActiGraph Analysis
| Autor: | Kuster, Roman P., Grooten, Wilhelmus J. A., Blom, Victoria, Baumgartner, Daniel, Hagströmer, Maria, Ekblom, Örjan |
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| Rok vydání: | 2020 |
| Předmět: |
Sitting Position
inactive standing lcsh:R Posture lcsh:Medicine Occupational Health and Environmental Health 614: Public Health und Gesundheitsförderung Article Arbetsmedicin och miljömedicin method comparison sedentary behavior Accelerometry Standing Position Humans human activities Exercise bland-altman active sitting posture and physical activity index (POPAI) |
| Zdroj: | International Journal of Environmental Research and Public Health International Journal of Environmental Research and Public Health, Vol 17, Iss 8864, p 8864 (2020) Volume 17 Issue 23 |
| ISSN: | 1660-4601 |
| Popis: | Sedentary Behavior (SB), defined as sitting with minimal physical activity, is an emergent public health topic. However, the measurement of SB considers either posture (e.g., activPal) or physical activity (e.g., ActiGraph), and thus neglects either active sitting or inactive standing. The aim of this study was to determine the true amount of active sitting and inactive standing in daily life, and to analyze by how much these behaviors falsify the single sensors&rsquo sedentary estimates. Sedentary time of 100 office workers estimated with activPal and ActiGraph was therefore compared with Bland-Altman statistics to a combined sensor analysis, the posture and physical activity index (POPAI). POPAI classified each activPal sitting and standing event into inactive or active using the ActiGraph counts. Participants spent 45.0% [32.2%&ndash 59.1%] of the waking hours inactive sitting (equal to SB), 13.7% [7.8%&ndash 21.6%] active sitting, and 12.0% [5.7%&ndash 24.1%] inactive standing (mean [5th&ndash 95th percentile]). The activPal overestimated sedentary time by 30.3% [12.3%&ndash 48.4%] and the ActiGraph by 22.5% [3.2%&ndash 41.8%] (bias [95% limit-of-agreement]). The results showed that sitting is not always inactive, and standing is not always active. Caution should therefore be paid when interpreting the activPal (ignoring active sitting) and ActiGraph (ignoring inactive standing) measured time as SB. |
| Databáze: | OpenAIRE |
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