Original Research ARTICLE
Characterization and agreement between application of Mobile Ecological Momentary Assessment (mEMA) and accelerometry in the identification of prevalence of sedentary behavior (SB) in young adults
- 1State University of Londrina, Brazil
- 2Federal Technological University of Paraná, Brazil
- 3Federal University of Mato Grosso do Sul, Brazil
- 4Rio Preto University Center, Brazil
- 5Paulista University, Brazil
New technologies able to identify the sedentary behavior (SB), such as the Mobile Ecological Momentary Assessment (mEMA) still need to be investigated. The aim of this study was to describe sedentary behavior (SB) in the physical, social and environmental contexts and verify the agreement between the mEMA and accelerometry in the identification of SB in young adults. During seven days, 123 young adults used concomitant mEMA and Actigraph wGT3xBT accelerometer. Data of 2262 mEMA prompts and respective count values in each minute (five minutes previous to prompt) were included in the analyses. Descriptive and comparative statistics were used in analyses using the SPSS 20.0 software. The physical context at home was the highest occurrence of SB (46.3%) and the main activity was “watching TV/movies” (29.7%). The main social context related to SB was “staying alone” (49.6%). The main assertions related to the participants' environmental context were: "I appreciate the comfort of electronic devices when I am at home" (86.2%). mEMA identified the presence of SB in 78.1% of prompts, while accelerometry identified 70.9% (PABAK=0.42). High values for the presence of SB were observed (sensitivity = 84%) and lower in the absence of SB (specificity = 38%). The study demonstrates the viability of mEMA use to obtain information about the occurrence of SB in contextual factors and good sensitivity to identify the presence of SB in young adults. The combined use of these methods is suggested in future studies about SB in young adults.
Keywords: accelerometers, Sedentary Lifestyle, adults, Mobile Applications, Ecological Momentary Assessment, Mobile phones
Received: 20 Nov 2018;
Accepted: 15 Mar 2019.
Edited by:Duarte Araújo, Universidade de Lisboa, Portugal
Reviewed by:Diogo Monteiro, Escola Superior de Desporto de Rio Maior, Instituto Politécnico Santarém, Portugal
Diogo Teixeira, Universidade Lusófona, Portugal
Copyright: © 2019 Romanzini, Romanzini, Barbosa, Batista, Shigaki and Ronque. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Dr. Catiana L. Romanzini, State University of Londrina, Londrina, Paraná, Brazil, firstname.lastname@example.org