Objective The aim of this study was to evaluate the relationship between objectively measured physical activity (ACT), particularly intensity of physical activity (iACT), and body fat percentage (BF%) in 278 middle-aged women. Secondary purposes were to ascertain the association between physical activity duration (dACT) and BF% and the content to which ...
Objective This study aimed to describe levels of physical activity in a representative sample of preschool children and to quantify tracking of activity over 1 year. Research Methods and Procedures Physical activity (mean accelerometry counts/minute) was assessed over 3 days using the Computer Science and Applications accelerometer in 3- to 4-year-old ...
Purpose The main objective of the present study was to determine the extent to which objectively measured aerobic fitness (VO2mSX) was predictive of bone mineral density (BMD) in 237 middle-aged women. Additional aims were to determine the extent to which differences 3n age, body weight, and objectively measured physical activity ...
Purpose The purpose of this study was to determine the extent measured changes in total dietary fiber (FIB) per 1000 kcal were predictive of changes in body fat percentage (BF%) in 228 middle-aged women during a 20-month prospective study. Other objectives were to ascertain the extent differences in age, and various baseline ...
Purpose To test for relationships between objectively measured habitual physical activity and fundamental movement skills in a relatively large and representative sample of preschool children. Methods Physical activity was measured over 6 d using the Computer Science and Applications (CSA) accelerometer in 394 boys and girls (mean age 4.2, SD 0.5 yr). Children were ...
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 ...