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Full-Text Articles in Social and Behavioral Sciences
Concurrent Validity Of The Actigraph Gt3x+ And Activpal For Assessing Sedentary Behaviour In 2-3-Year-Old Children Under Free-Living Conditions, Joao Rafael Rodrigues Pereira, Eduarda Sousa-Sa, Zhiguang Zhang, Dylan P. Cliff, Rute Santos
Concurrent Validity Of The Actigraph Gt3x+ And Activpal For Assessing Sedentary Behaviour In 2-3-Year-Old Children Under Free-Living Conditions, Joao Rafael Rodrigues Pereira, Eduarda Sousa-Sa, Zhiguang Zhang, Dylan P. Cliff, Rute Santos
Faculty of Social Sciences - Papers (Archive)
Objectives
ActiGraph accelerometer cut-points are commonly used to classify sedentary behaviour (SB) in young children. However, they vary from 5counts/5 s to 301counts/15 s, resulting in different estimates and inconsistent findings. The aim was to examine the concurrent validity of ActiGraph GT3X + cut-points against the activPAL for measuring SB in 2–3-year-olds during free-living conditions.
Design
Observational validation-study.
Methods
Sixty children were fitted with the activPAL and ActiGraph simultaneously for at least 2 h. Nine ActiGraph cut-points ranging from 60 to 1488 counts per minute were used to derive SB. Bland & Altman plots and equivalent tests were performed to …