Introduction Children’s physical activity has traditionally been measured with self-reports. Self-reports are easily administered, low-cost measurements. However, they do not capture the sporadic short-burst nature of children’s physical activity very well. Accelerometers have therefore, in recent times, become the method of choice in physical activity research. These devices ...
Introduction Epidemiological studies for investigating physical activity as a predictor for a health outcome such as obesity often use average daily moderate to vigorous physical activity (MVPA) as a summary of the highly dimensional actigraph measurements. The problem with using a single summary statistics such as MVPA is that it ...
Introduction Recent research shows that too much sitting has negative effects on health and well-being independently from people meeting the current physical activity (PA) recommendations [1]. However sedentary behavior (SB) is still an understudied topic. The aim of this study was to objectively investigate the time spent in sedentary and PA ...
Purpose To establish the validity and reliability of the GPAC for measuring physical activity and geographic location. Methods 20 subjects wore both the GRAC and an Actigraph while walking on a treadmill at 3,4, or 5 mph in a randomized order. In addition 24 subjects were asked to wear the GPAC and to record ...
Purpose To determine the reliability and validity of physical activity monitors and self-report instruments suitable for young African-American girls. Methods A validation study was conducted by the Girls health Enrichment Multi-site Studies (GEMS) research team to compare an accelerometer with a pedometer and two self-report instruments for assessing physical activity ...
Purpose Development and validation of a physical activity scale for measuring physical activity in 24-h of sports, work, and leisure time on an average weekday. Methods For development of the physical activity scale, 2500 randomly selected Danish men and women between the age of 20 and 60 were contacted by mail and asked ...
An accurate assessment of physical activity is important for a variety of applications in public health research. Walking is encouraged as one of the most accessible ways to be physically active and accounts for the majority of daily physical activity, therefore, daily step counts may be a useful indicator of ...
Purpose The aim of this investigation was to evaluate the association between television viewing (TV) and body fat percentage in 281 middle-aged women. An additional goal was to ascertain the extent to which physical activity and energy intake explain differences in adiposity among women with various TV viewing habits. Methods The ...
Background Physical activity (PA) is relevant to the prevention and management of many health conditions in family practice. There is a need for an efficient, reliable, and valid assessment tool to identify patients in need of PA interventions. Methods Twenty-eight family physicians in three Australian cities assessed the PA of ...
Objective To examine the cross-sectional relationships between physical activity and dietary behaviors among 8- to 10-year-old African-American girls. Research Methods and Procedures Two hundred ten 8- to 10-year-old African-American girls from four field centers participated. Computer Science and Applications (CSA) activity monitors were worn for 3 days. CSA data were expressed ...