| Full text | |
| Author(s): |
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]
Total Authors: 7
|
| Affiliation: | [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
Total Affiliations: 5
|
| Document type: | Journal article |
| Source: | JOURNAL OF PHYSICAL ACTIVITY & HEALTH; v. 16, n. 9, p. 780-784, SEP 2019. |
| Web of Science Citations: | 0 |
| Abstract | |
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) | |
| FAPESP's process: | 17/27234-2 - Longitudinal association between biological maturation, body fatness and sports participation predicting the risk of metabolic syndrome and C-reactive protein: structural equation modelling (ABCD - growth study) |
| Grantee: | André de Oliveira Werneck |
| Support Opportunities: | Scholarships in Brazil - Master |