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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Agreement Between GT3X Accelerometer and ActivPAL Inclinometer for Estimating and Detecting Changes in Different Contexts of Sedentary Time Among Adolescents

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Autor(es):
Silva, Danilo R. [1, 2] ; Minderico, Claudia S. [3, 4] ; Judice, Pedro B. [3, 4] ; Werneck, Andre O. [2, 5] ; Ohara, David [2] ; Cyrino, Edilson S. [2] ; Sardinha, Luis B. [3]
Número total de Autores: 7
Afiliação do(s) autor(es):
[1] Fed Univ Sergipe UFS, Dept Phys Educ, Sao Cristovao - Brazil
[2] Univ Estadual Londrina, Study & Res Grp Metab Nutr & Exercise GEPEMENE, Londrina - Brazil
[3] Univ Lisbon, Fac Human Kinet, CIPER, Exercise & Hlth Lab, Lisbon - Portugal
[4] Lusofona Univ, Lisbon - Portugal
[5] Sao Paulo State Univ, UNESP, Dept Phys Educ, Presidente Prudente - Brazil
Número total de Afiliações: 5
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF PHYSICAL ACTIVITY & HEALTH; v. 16, n. 9, p. 780-784, SEP 2019.
Citações Web of Science: 0
Resumo

Background: This investigation aimed to analyze the agreement between the GT3X accelerometer and the ActivPAL inclinometer for estimating and detecting changes in sedentary behavior of different contexts among adolescents. Methods: Secondary data from an intervention using standing desks in the classroom conducted within 2 sixth-grade classes (intervention {[}n = 22] and control {[}n = 27]) were used. The intervention took place over 16 weeks, with activity assessments (ActivPAL and GT3X) being performed 7 days before and in the last week of the intervention. Baseline information from both groups was considered for cross-sectional analysis (209 valid days), while data from 20 participants (intervention group) were used for longitudinal analysis. Results: The authors observed that GT3X overestimated sedentary time at school (16.8%), after school (13.5%), and during weekends (7.3%) compared with ActivPAL (P <.05). Outside the school (after school {[}r = -. 188] and on weekends {[}r = -. 260]), there was a trend to higher overestimation among adolescents with less sedentary behavior. Longitudinally, the GT3X was unable to detect changes resulting froman intervention in school hours (ActivPAL = -34.7 min center dot 9 h -1 vs GT3X= + 6.7 min center dot 9 h -1; P <.05). Conclusions: The authors conclude that GT3X (cut-point of < 100 counts center dot min -1) overestimated sedentary time of free-living activities and did not detect changes resulting from a classroom standing desk intervention in adolescents. (AU)

Processo FAPESP: 17/27234-2 - Associação longitudinal entre maturação biológica, gordura corporal e prática esportiva na predição do risco de síndrome metabólica e proteína C-reativa: modelos de equação estrutural (ABCD - growth study)
Beneficiário:André de Oliveira Werneck
Linha de fomento: Bolsas no Brasil - Mestrado