Stability and convergent validity of three physical activity assessments

Article Abstract:

This article examines the stability and convergent validity of Caltrac accelerometers, heart rate monitors (HR), and physical activity recall (PAR) in daily activities of 6th grade girls. Results show PAR and HR were stable, and Caltrac showed the least stability and reliability.

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Seasonal variation in adult leisure-time physical activity

Article Abstract:

The effect of season on leisure-time physical activity behaviors, in terms of weekly leisure-time energy expenditure, is about 15 to 20% higher during spring and summer, mostly as a result of participants being engaged in a second activity in spring and summer.

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Body mass index as a predictor of percent fat in college athletes and nonathletes

Article Abstract:

A study determines the accuracy of using body mass index (BMI) to measure obesity for classifying students in colleges as athletes and nonetheless. Results reveal that BMI is not an accurate measure of fatness in college athletes and nonathletes.

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