Purpose To examine certain physiological parameters during officiating selected National Football League (NFL) games. Methods Data were collected during four preseason NFL games. During each game1 a i-person crew was monitored on the following physiological parameters: heart tale activity (using Polar S610i Heart Rate Monitor), activity level, caloric expenditure, ...
Purpose To compare two methods for measuring time spent in physical activity of differing absolute intensities. Methods Over a 7-d period, 59 women wore Computer Science and Applications, Inc. (CSA) accelerometers and recorded their activity in physical activity logs (PAL) at 15-min intervals. Three published cut points were used to classify ...
Objective To describe the levels of physical activity and energy intake in a sample of Bolivian Adolescents. Setting La Paz, September-October 2004. Methodology: 45 secondary school students (19 males; 26 females; mean age 15.6 SD 1.25) wear accelerometers (Actigraph-7164; http://www.theactigraph.com) during three days. Anthropometric measurements were registered. A semi-quantitative food frequency-questionnaire was used ...
This study compared the determinants of physical activity in active and low-active African-American sixth grade students (N = 108, 57 F, 51 M). Objective assessments of physical activity over a seven-day period were obtained using the CSA 7164 accelerometer. Students were classified as active if they exhibited three or more 20-minute bouts of moderate to ...
Objective To evaluate the theory of reasoned action (TRA) and planned behavior (TPB) In predicting moderate-to-vigorous physical activity (MVPA) in sixth-grade youth. Methods One hundred ninety-eight students completed a questionnaire measuring attitudes, subjective norms, perceived behavioral control, and intentions to be active. MVPA was measured using the CSA 7,164 accelerometer. Results ...
The purposes of this study were to assess the TRITRAC and CSA for: (a) interaccelerometer agreement; (b) agreement in detecting patterns of moderate-intensity physical activity; and (c) agreement in detecting walking patterns recorded in a diary. Thirty-one women wore both the TRITRAC and CSA accelerometers for three consecutive days. Interaccelerometer ...
Background To understand the mechanisms by which physical activity influences health and to target public health recommendations, it is important to determine factors correlated with activity. Methods We examined demographic and lifestyle factors in relation to questionnaire and accelerometer measured physical activity in 251 men and women aged 40 to 70 years in ...
Purpose The purpose of this study is to describe and evaluate a method of defining the intensity of accumulated lifestyle PA bouts from CSA data based upon relative intensity from % heart rate reserve (%HRR) Methods CSA and %HRR data coflected simultaneously for 12 subjects (7 men, 5 women; 43 total bouts) were analyzed to ...
Purpose Accelerometry-based activity monitors offer promise for the assessment of free-living physical activity. They provide an objective record of frequency, intensity, and duration of physical activity with minimal burden on participants. The purpose of this study was to evaluate the absolute and relative validity of three contemporary activity monitors (Computer ...
Introduction Exact evaluation of the quantity and intensity of physical activity in daily life is considered very important due to the close relationship between physical activity level, functional decline and sedentary habits. Even moderate-to-vigorous intense physical activity (PA) is beneficial when done regularly for a total of 30 minutes or longer ...