Association between Self-Reported and Accelerometer-Based Estimates of Physical Activity in Portuguese Older Adults
Accurate assessment of physical activity (PA) is crucial in interventions promoting it and in studies exploring its association with health status. Currently, there is a wide range of assessment tools available, including subjective and objective measures. This study compared accelerometer-based est...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-03-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/7/2258 |
| _version_ | 1797540228885381120 |
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| author | Célia Domingos Nadine Correia Santos José Miguel Pêgo |
| author_facet | Célia Domingos Nadine Correia Santos José Miguel Pêgo |
| author_sort | Célia Domingos |
| collection | DOAJ |
| description | Accurate assessment of physical activity (PA) is crucial in interventions promoting it and in studies exploring its association with health status. Currently, there is a wide range of assessment tools available, including subjective and objective measures. This study compared accelerometer-based estimates of PA with self-report PA data in older adults. Additionally, the associations between PA and health outcomes and PA profiles were analyzed. Participants (<i>n</i> = 110) wore a Xiaomi Mi Band 2<sup>®</sup> for fifteen consecutive days. Self-reported PA was assessed using the International Physical Activity Questionnaire (IPAQ) and the Yale Physical Activity Survey (YPAS). The Spearman correlation coefficient was used to compare self-reported and accelerometer-measured PA and associations between PA and health. Bland–Altman plots were performed to assess the agreement between methods. Results highlight a large variation between self-reported and Xiaomi Mi Band 2<sup>®</sup> estimates, with poor general agreement. The highest difference was found for sedentary time. Low positive correlations were observed for IPAQ estimates (sedentary, vigorous, and total PA) and moderate for YPAS vigorous estimates. Finally, self-reported and objectively measured PA associated differently with health outcomes. Summarily, although accelerometry has the advantage of being an accurate method, self-report questionnaires could provide valuable information about the context of the activity. |
| first_indexed | 2024-03-10T12:58:08Z |
| format | Article |
| id | doaj.art-7bb7977f26db4aa1862fed4a4067977c |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T12:58:08Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-7bb7977f26db4aa1862fed4a4067977c2023-11-21T11:45:47ZengMDPI AGSensors1424-82202021-03-01217225810.3390/s21072258Association between Self-Reported and Accelerometer-Based Estimates of Physical Activity in Portuguese Older AdultsCélia Domingos0Nadine Correia Santos1José Miguel Pêgo2Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, PortugalLife and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, PortugalLife and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, PortugalAccurate assessment of physical activity (PA) is crucial in interventions promoting it and in studies exploring its association with health status. Currently, there is a wide range of assessment tools available, including subjective and objective measures. This study compared accelerometer-based estimates of PA with self-report PA data in older adults. Additionally, the associations between PA and health outcomes and PA profiles were analyzed. Participants (<i>n</i> = 110) wore a Xiaomi Mi Band 2<sup>®</sup> for fifteen consecutive days. Self-reported PA was assessed using the International Physical Activity Questionnaire (IPAQ) and the Yale Physical Activity Survey (YPAS). The Spearman correlation coefficient was used to compare self-reported and accelerometer-measured PA and associations between PA and health. Bland–Altman plots were performed to assess the agreement between methods. Results highlight a large variation between self-reported and Xiaomi Mi Band 2<sup>®</sup> estimates, with poor general agreement. The highest difference was found for sedentary time. Low positive correlations were observed for IPAQ estimates (sedentary, vigorous, and total PA) and moderate for YPAS vigorous estimates. Finally, self-reported and objectively measured PA associated differently with health outcomes. Summarily, although accelerometry has the advantage of being an accurate method, self-report questionnaires could provide valuable information about the context of the activity.https://www.mdpi.com/1424-8220/21/7/2258seniorselderlyphysical activityaccelerometryfitness trackersself-report physical activity |
| spellingShingle | Célia Domingos Nadine Correia Santos José Miguel Pêgo Association between Self-Reported and Accelerometer-Based Estimates of Physical Activity in Portuguese Older Adults Sensors seniors elderly physical activity accelerometry fitness trackers self-report physical activity |
| title | Association between Self-Reported and Accelerometer-Based Estimates of Physical Activity in Portuguese Older Adults |
| title_full | Association between Self-Reported and Accelerometer-Based Estimates of Physical Activity in Portuguese Older Adults |
| title_fullStr | Association between Self-Reported and Accelerometer-Based Estimates of Physical Activity in Portuguese Older Adults |
| title_full_unstemmed | Association between Self-Reported and Accelerometer-Based Estimates of Physical Activity in Portuguese Older Adults |
| title_short | Association between Self-Reported and Accelerometer-Based Estimates of Physical Activity in Portuguese Older Adults |
| title_sort | association between self reported and accelerometer based estimates of physical activity in portuguese older adults |
| topic | seniors elderly physical activity accelerometry fitness trackers self-report physical activity |
| url | https://www.mdpi.com/1424-8220/21/7/2258 |
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