Background -Regular physical activity (PA) has many health benefits -Walking: most common activity among the physically active -Energy expenditure due to walking assists assessments of PA levels and determine effectiveness of interventions -Limitations of current measurement of PA by accelerometry -Imprecision–Due to proprietary methods to convert linear accelerations in ...
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 ...
The goal of this study was to validate an adapted version of the “weekly checklist" in a Portuguese population. The validity was assessed by comparing self-reports against the Computer Science and Application, Inc (CSA) monitor. The sample comprised 109 children (boys, n = 42; girls, n = 67), aged 8 to 16 years old, All subjects were ...
Purpose Participation in physical activity during pregnancy may reduce the risk of maternal and fetal disorders. However, few studies have validated physical activity questionnaires for use during pregnancy, a time characterized by different patterns of activity than non-pregnancy. Therefore, the aim of this study was to assess the validity and ...
Objective This study was designed to validate accelerometer-based activity monitors against energy expenditure (EE) in children; to compare monitor placement sites; to field-test the monitors; and to establish sedentary, light, moderate, and vigorous threshold counts. Research Methods and Procedures Computer Science and Applications Actigraph (CSA) and Mini-Mitter Actiwatch (MM) monitors, ...
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 ...
Childhood obesity has been attributed to a decline in total energy expenditure (TEE). We measured TEE, physical activity, and sedentary behaviour in a representative sample of young children from Glasgow, UK, at age 3 years (n=78), and we did a follow-up study at age 5 years (n=72). Mean physical activity level (TEE/...
Objective The objective of the Hyperglycemia and Adverse Pregnancy Outcome (HAPO) Study is to clarify unanswered questions on associations of maternal glycemia, less severe than overt diabetes mellitus, with risks of adverse pregnancy outcome. This report describes the background and design of the HAPO Study. Methods HAPO is a 5-year ...
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 ...