Reliability of GENEActiv accelerometers to estimate sleep, physical activity, and sedentary time in children
Abstract Background Reliable estimates of habitual sleep, physical activity, and sedentary time are essential to investigate the associations between these behaviours and health outcomes. While the number of days needed and hours/day for estimates of physical activity and sedentary time are generall...
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| Format: | Article |
| Language: | English |
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BMC
2021-06-01
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| Series: | International Journal of Behavioral Nutrition and Physical Activity |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s12966-021-01143-6 |
| _version_ | 1818641005632552960 |
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| author | Devan Antczak Chris Lonsdale Borja del Pozo Cruz Philip Parker Taren Sanders |
| author_facet | Devan Antczak Chris Lonsdale Borja del Pozo Cruz Philip Parker Taren Sanders |
| author_sort | Devan Antczak |
| collection | DOAJ |
| description | Abstract Background Reliable estimates of habitual sleep, physical activity, and sedentary time are essential to investigate the associations between these behaviours and health outcomes. While the number of days needed and hours/day for estimates of physical activity and sedentary time are generally known, the criteria for sleep estimates are more uncertain. The objective of this study was to identify the number of nights needed to obtain reliable estimates of habitual sleep behaviour using the GENEActiv wrist worn accelerometer. The number of days to obtain reliable estimate of physical activity was also examined. Methods Data was used from a two-year longitudinal study. Children wore an accelerometer for up to 8 days 24 h/day across three timepoints. The sample included 2,745 children (51 % girls) between the ages of 7-12-years-old (mean = 9.8 years, SD = 1.1 year) with valid accelerometer data from any timepoint. Reliability estimates were calculated for sleep duration, sleep efficiency, sleep onset, wake time, time in bed, light physical activity, moderate physical activity, moderate-to-vigorous physical activity, vigorous physical activity, and sedentary time. Results Intraclass correlations and the Spearman Brown prophecy formula were used to determine the nights and days needed for reliable estimates. We found that between 3 and 5 nights were needed to achieve acceptable reliability (ICC = 0.7) in sleep outcomes, while physical activity and sedentary time outcomes required between 3 and 4 days. Conclusions To obtain reliable estimates, researchers should consider these minimum criteria when designing their studies and prepare strategies to ensure sufficient wear time compliance. |
| first_indexed | 2024-12-16T23:20:17Z |
| format | Article |
| id | doaj.art-a98fd6e9c49447658b4701aa5cf2ea60 |
| institution | Directory Open Access Journal |
| issn | 1479-5868 |
| language | English |
| last_indexed | 2024-12-16T23:20:17Z |
| publishDate | 2021-06-01 |
| publisher | BMC |
| record_format | Article |
| series | International Journal of Behavioral Nutrition and Physical Activity |
| spelling | doaj.art-a98fd6e9c49447658b4701aa5cf2ea602022-12-21T22:12:11ZengBMCInternational Journal of Behavioral Nutrition and Physical Activity1479-58682021-06-0118111110.1186/s12966-021-01143-6Reliability of GENEActiv accelerometers to estimate sleep, physical activity, and sedentary time in childrenDevan Antczak0Chris Lonsdale1Borja del Pozo Cruz2Philip Parker3Taren Sanders4Institute for Positive Psychology and Education, Australian Catholic UniversityInstitute for Positive Psychology and Education, Australian Catholic UniversityInstitue of Sport Sciences and Clinical Biomechanics, University of Southern DenmarkInstitute for Positive Psychology and Education, Australian Catholic UniversityInstitute for Positive Psychology and Education, Australian Catholic UniversityAbstract Background Reliable estimates of habitual sleep, physical activity, and sedentary time are essential to investigate the associations between these behaviours and health outcomes. While the number of days needed and hours/day for estimates of physical activity and sedentary time are generally known, the criteria for sleep estimates are more uncertain. The objective of this study was to identify the number of nights needed to obtain reliable estimates of habitual sleep behaviour using the GENEActiv wrist worn accelerometer. The number of days to obtain reliable estimate of physical activity was also examined. Methods Data was used from a two-year longitudinal study. Children wore an accelerometer for up to 8 days 24 h/day across three timepoints. The sample included 2,745 children (51 % girls) between the ages of 7-12-years-old (mean = 9.8 years, SD = 1.1 year) with valid accelerometer data from any timepoint. Reliability estimates were calculated for sleep duration, sleep efficiency, sleep onset, wake time, time in bed, light physical activity, moderate physical activity, moderate-to-vigorous physical activity, vigorous physical activity, and sedentary time. Results Intraclass correlations and the Spearman Brown prophecy formula were used to determine the nights and days needed for reliable estimates. We found that between 3 and 5 nights were needed to achieve acceptable reliability (ICC = 0.7) in sleep outcomes, while physical activity and sedentary time outcomes required between 3 and 4 days. Conclusions To obtain reliable estimates, researchers should consider these minimum criteria when designing their studies and prepare strategies to ensure sufficient wear time compliance.https://doi.org/10.1186/s12966-021-01143-6Movement BehaviourObjective MeasurementYouth |
| spellingShingle | Devan Antczak Chris Lonsdale Borja del Pozo Cruz Philip Parker Taren Sanders Reliability of GENEActiv accelerometers to estimate sleep, physical activity, and sedentary time in children International Journal of Behavioral Nutrition and Physical Activity Movement Behaviour Objective Measurement Youth |
| title | Reliability of GENEActiv accelerometers to estimate sleep, physical activity, and sedentary time in children |
| title_full | Reliability of GENEActiv accelerometers to estimate sleep, physical activity, and sedentary time in children |
| title_fullStr | Reliability of GENEActiv accelerometers to estimate sleep, physical activity, and sedentary time in children |
| title_full_unstemmed | Reliability of GENEActiv accelerometers to estimate sleep, physical activity, and sedentary time in children |
| title_short | Reliability of GENEActiv accelerometers to estimate sleep, physical activity, and sedentary time in children |
| title_sort | reliability of geneactiv accelerometers to estimate sleep physical activity and sedentary time in children |
| topic | Movement Behaviour Objective Measurement Youth |
| url | https://doi.org/10.1186/s12966-021-01143-6 |
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