Lessons from 13 years of accelerometry measurements in five Brazilian cohorts

Methodological Aspects

Datos Bibliográficos

ID5166916
AutoresAndrea Wendt (0000-0002-4640-2254, Pontifícia Universidade Católica do Paraná), Gabriela Silva Leite (0000-0002-7480-8710, Universidade Federal de Pelotas), Renata Contreira (0000-0003-4946-6613, Universidade Federal de Pelotas), Gregore Iven Mielke (0000-0002-3043-2715, The University of Queensland), Bernardo L Horta (0000-0001-9843-412X, Universidade Federal de Pelotas), Janaína Vieira Dos Santos Motta (0000-0002-3755-845X, Universidade Federal de Pelotas), Fernando Pires Hartwig (0000-0003-3729-0710, Universidade Federal de Pelotas), Fernando César Wehrmeister (0000-0001-7137-1747, Universidade Federal de Pelotas), Ana M B Menezes (0000-0002-2996-9427, Universidade Federal de Pelotas), Helen Denise Gonçalves Da Silva (0000-0001-6470-3352, Universidade Federal de Pelotas), Iná S Santos (0000-0003-1258-9249, Universidade Federal de Pelotas), Alícia Matijasevich (0000-0003-0060-1589, Universidade de São Paulo), Luciana Tovo-Rodrigues (0000-0002-8732-6059, Universidade Federal de Pelotas), Andréa Dâmaso Bertoldi (0000-0002-4680-3197, Universidade Federal de Pelotas), Marlos R Domingues (0000-0002-2503-2944, Universidade Federal de Pelotas), Renata Moraes Bielemann (0000-0003-0202-3735, Universidade Federal de Pelotas), Ulf Ekelund (0000-0003-2115-9267, Norwegian School of Sport Sciences, Norway; Norwegian Institute of Public Health, Norway), Pedro Rodrigues Curi Hallal (0000-0003-1470-6461, Universidade Federal de Pelotas, Brazil; University of Illinois Urbana-Champaign, U.S.A), Inácio Crochemore-Silva (0000-0001-5390-8360, Universidade Federal de Pelotas)
Año2025
Volumen41
Número3
Páginase00011724-e00011724
Fecha de publicación2025-01-01
Peer ReviewedSí
Open AccessSí
TipoARTICLE
RevistaCadernos de Saude Publica (JOURNAL)
Identificadores de la revistaISSN: 0102-311X • E-ISSN: 1678-4464
EditorialFapUNIFESP (SciELO) (PUBLISHER)
DOI10.1590/0102-311xen011724
PMID40243785
OpenAlexW4409392584
SCIELO_PIDS0102-311X2025000301300
IdiomaEN
Referencias citadas56

This study describes key methodological decisions and their justifications for accelerometer data collection, processing, and cleaning/analysis in Pelotas (Rio Grande do Sul State, Brazil) cohorts, exemplifying how research using sensor monitors could be carried out in a middle-income country context. This is a descriptive methodological study using raw accelerometer data from five Brazilian population-based cohorts with 32,963 individuals. Data collection (pre-processing decisions), processing (choosing requirements to run the analysis), and post-processing decisions (data cleaning) are described in detail. Pre-processing includes choosing the device brand/model, placement of the device, algorithms/thresholds, and the number of days participants were required to wear the devices. Processing activities involve applying thresholds/algorithms to the data. Finally, post-processing includes data cleaning. The minimum number of days to be validated to correctly estimate weekly averages was specific to age and measurement. By summarizing and describing the methodological decisions and analysis protocol, we hope to contribute to the design and analysis of accelerometer data in future studies in similar research contexts

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