Methodological aspects for accelerometer-based assessment of physical activity in heart failure and health

Abstract Background For valid accelerometer-assessed physical activity (PA) data, several methodological aspects should be considered. We aimed to 1) visualize the applicability of absolute accelerometer cut-offs to classify PA intensity, 2) verify recommendations to measure PA over 7 days by examin...

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Autores principales:	Fabian Schwendinger, Jonathan Wagner, Denis Infanger, Arno Schmidt-Trucksäss, Raphael Knaier
Formato:	article
Lenguaje:	EN
Publicado:	BMC 2021
Materias:	Activity monitor Sedentary behavior Leisure activities Wearing time Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/39514c24c9694e3ca8f0d85e2935f7e7
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spelling	oai:doaj.org-article:39514c24c9694e3ca8f0d85e2935f7e72021-11-14T12:39:39ZMethodological aspects for accelerometer-based assessment of physical activity in heart failure and health10.1186/s12874-021-01350-61471-2288https://doaj.org/article/39514c24c9694e3ca8f0d85e2935f7e72021-11-01T00:00:00Zhttps://doi.org/10.1186/s12874-021-01350-6https://doaj.org/toc/1471-2288Abstract Background For valid accelerometer-assessed physical activity (PA) data, several methodological aspects should be considered. We aimed to 1) visualize the applicability of absolute accelerometer cut-offs to classify PA intensity, 2) verify recommendations to measure PA over 7 days by examining inter-day variability and reactivity, 3) examine seasonal differences in PA, and 4) recommend during which 10 h day period accelerometers should be worn to capture the most PA in patients with heart failure (HEART) and healthy individuals (HEALTH). Methods Fifty-six HEART (23% female; mean age 66 ± 13 years) and 299 HEALTH (51% female; mean age 54 ± 19 years) of the COmPLETE study wore accelerometers for 14 days. Aim 1 was analyzed descriptively. Key analyses were performed using linear mixed models. Results The results yielded poor applicability of absolute cut-offs. The day of the week significantly affected PA in both groups. PA-reactivity was not present in either group. A seasonal influence on PA was only found in HEALTH. Large inter-individual variability in PA timing was present. Conclusions Our data indicated that absolute cut-offs foster inaccuracies in both populations. In HEART, Sunday and four other days included in the analyses seem sufficient to estimate PA and the consideration of seasonal differences and reactivity seems not necessary. For healthy individuals, both weekend days plus four other days should be integrated into the analyses and seasonal differences should be considered. Due to substantial inter-individual variability in PA timing, accelerometers should be worn throughout waking time. These findings may improve future PA assessment. Trial registration The COmPLETE study was registered at clinicaltrials.gov ( NCT03986892 ).Fabian SchwendingerJonathan WagnerDenis InfangerArno Schmidt-TrucksässRaphael KnaierBMCarticleActivity monitorSedentary behaviorLeisure activitiesWearing timeMedicine (General)R5-920ENBMC Medical Research Methodology, Vol 21, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Activity monitor Sedentary behavior Leisure activities Wearing time Medicine (General) R5-920
spellingShingle	Activity monitor Sedentary behavior Leisure activities Wearing time Medicine (General) R5-920 Fabian Schwendinger Jonathan Wagner Denis Infanger Arno Schmidt-Trucksäss Raphael Knaier Methodological aspects for accelerometer-based assessment of physical activity in heart failure and health
description	Abstract Background For valid accelerometer-assessed physical activity (PA) data, several methodological aspects should be considered. We aimed to 1) visualize the applicability of absolute accelerometer cut-offs to classify PA intensity, 2) verify recommendations to measure PA over 7 days by examining inter-day variability and reactivity, 3) examine seasonal differences in PA, and 4) recommend during which 10 h day period accelerometers should be worn to capture the most PA in patients with heart failure (HEART) and healthy individuals (HEALTH). Methods Fifty-six HEART (23% female; mean age 66 ± 13 years) and 299 HEALTH (51% female; mean age 54 ± 19 years) of the COmPLETE study wore accelerometers for 14 days. Aim 1 was analyzed descriptively. Key analyses were performed using linear mixed models. Results The results yielded poor applicability of absolute cut-offs. The day of the week significantly affected PA in both groups. PA-reactivity was not present in either group. A seasonal influence on PA was only found in HEALTH. Large inter-individual variability in PA timing was present. Conclusions Our data indicated that absolute cut-offs foster inaccuracies in both populations. In HEART, Sunday and four other days included in the analyses seem sufficient to estimate PA and the consideration of seasonal differences and reactivity seems not necessary. For healthy individuals, both weekend days plus four other days should be integrated into the analyses and seasonal differences should be considered. Due to substantial inter-individual variability in PA timing, accelerometers should be worn throughout waking time. These findings may improve future PA assessment. Trial registration The COmPLETE study was registered at clinicaltrials.gov ( NCT03986892 ).
format	article
author	Fabian Schwendinger Jonathan Wagner Denis Infanger Arno Schmidt-Trucksäss Raphael Knaier
author_facet	Fabian Schwendinger Jonathan Wagner Denis Infanger Arno Schmidt-Trucksäss Raphael Knaier
author_sort	Fabian Schwendinger
title	Methodological aspects for accelerometer-based assessment of physical activity in heart failure and health
title_short	Methodological aspects for accelerometer-based assessment of physical activity in heart failure and health
title_full	Methodological aspects for accelerometer-based assessment of physical activity in heart failure and health
title_fullStr	Methodological aspects for accelerometer-based assessment of physical activity in heart failure and health
title_full_unstemmed	Methodological aspects for accelerometer-based assessment of physical activity in heart failure and health
title_sort	methodological aspects for accelerometer-based assessment of physical activity in heart failure and health
publisher	BMC
publishDate	2021
url	https://doaj.org/article/39514c24c9694e3ca8f0d85e2935f7e7
work_keys_str_mv	AT fabianschwendinger methodologicalaspectsforaccelerometerbasedassessmentofphysicalactivityinheartfailureandhealth AT jonathanwagner methodologicalaspectsforaccelerometerbasedassessmentofphysicalactivityinheartfailureandhealth AT denisinfanger methodologicalaspectsforaccelerometerbasedassessmentofphysicalactivityinheartfailureandhealth AT arnoschmidttrucksass methodologicalaspectsforaccelerometerbasedassessmentofphysicalactivityinheartfailureandhealth AT raphaelknaier methodologicalaspectsforaccelerometerbasedassessmentofphysicalactivityinheartfailureandhealth
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Methodological aspects for accelerometer-based assessment of physical activity in heart failure and health

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