Preschool Children Physical Activity Measurement: Importance of Epoch Length Choice
نویسندگان
چکیده
منابع مشابه
Comparison of epoch and uniaxial versus triaxial accelerometers in the measurement of physical activity in preschool children: a validation study.
The objectives of this study were to explore whether triaxial is more accurate than uniaxial accelerometry and whether shorter sampling periods (epochs) are more accurate than longer epochs. Physical activity data from uniaxial and triaxial (RT3) devices were collected in 1-s epochs from 31 preschool children (15 males, 16 females, 4.4 ± 0.8 yrs) who were videoed while they engaged in 1-hr of f...
متن کاملMeasuring Adolescent Boys' Physical Activity: Bout Length and the Influence of Accelerometer Epoch Length
OBJECTIVES Accurate, objective measurement is important for understanding adolescents' physical activity (PA) behaviour. When using accelerometry to objectively measure PA, a decision must be made regarding how frequently data is recorded (i.e., epoch length). The purpose of this study was to examine i) PA bout length, and ii) the effect of variations in accelerometer epoch length on PA estimat...
متن کاملMothers’ Self-Efficacy Regarding Dietary Behaviour and Physical Activity of Preschool Children
Background Obesity constitutes a crucial health issue during preschool period and has an impact on children regardless their ethnic backgrounds. The purpose of the study was to examine the self-efficacy perceptions of mothers and potential differences and correlations with dietary behaviour and physical activity of their preschool children in Finland. Materials and Methods: The sample for this...
متن کاملBehavioral assessment of physical activity in obese preschool children.
We measured changes in physical activity in 2 obese preschool children when a package intervention was evaluated in a reversal design. Physical activity was measured via direct observation and pedometers. Although the intervention produced only modest increases in activity, the results provide preliminary concurrent validation for the dependent measures used, in that the two measures covaried a...
متن کاملPatterns of physical activity and sedentary behaviour in preschool children
BACKGROUND Little is known about patterns of sedentary behavior (SB) and physical activity among preschoolers. Therefore, in this observational study patterns of SB and moderate-to-vigorous physical activity (MVPA) were examined in detail throughout the week in preschool-aged boys and girls. METHODS A sample of 703 Melbourne preschool children (387 boys; 4.6 ± 0.7 y) were included in data ana...
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ژورنال
عنوان ژورنال: Pediatric Exercise Science
سال: 2009
ISSN: 0899-8493,1543-2920
DOI: 10.1123/pes.21.4.413