Using objective physical activity measures with youth: how many days of monitoring are needed?

By Stewart G. Trost, R. Pate, Patty S. Freedson, James F. Sallis, W. Taylor. Medicine & Science in Sports & Exercise, 2000

1,190 citations recorded by the source corpus.

Subfields: Developmental and Educational Psychology, Physiology, Public Health, Environmental and Occupational Health

View Paper: https://www.semanticscholar.org/paper/1bbf141a36f6115d3adca244dd76130b05b8ce89

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In Developmental and Educational Psychology

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Citations in the corpus

Standardizing and Optimizing the Use of Accelerometer Data for Free-Living Physical Activity Monitoring (2005, methodology): “Research suggests that 4 to 7 d of monitoring are required to obtain a reliable assessment of physical activity behavior.(12,25) Expectations that correlation coefficients might approach 1.”
Characteristics of physical activities in daily life in chronic obstructive pulmonary disease. (2005, background): “70 or greater, which is considered as acceptable to assess reliably a variable in a group of individuals (20).”
Physical activity levels and patterns of 9- and 15-yr-old European children. (2004, background): “However, as 4 d of measurement has been shown to be representative of a full week’s activity (24), we believe our figures are a realistic estimation of the proportion of children who meet current recommendations.”
Imputation of missing data when measuring physical activity by accelerometry. (2005, background): “Although the measurement protocols vary, most studies involve monitoring physical activity over several days to ensure reliable estimates of usual physical activity behavior and to account for potentially important differences in activity patterns on weekdays versus weekend days (19).”
Assessment of physical activity in youth. (2008, background): “80 in young children, but between 8 and 9 days may be required for adolescents (112).”
Defining accelerometer thresholds for activity intensities in adolescent girls. (2004, background): “Laboratory-based studies have compared accelerometers to energy expenditure during physical activity in adults (5,15,26,27) and children (17,22,23).”