It is important that we have valid tools for assessing physical activity at various ages, and this becomes particularly important with longitudinal research. The purpose of this study was to develop and validate and adult version of the Physical Activity Questionnaires for Older Children (PAQ-C) and Adolescents (PAQ-A) To examine ...
The principal aim of the present study was to examine the validity of the Computer Science and Applications (CSA) activity monitor during level walking in coronary artery disease (CAD) patients. As a secondary aim, we evaluated the usefulness of two previously published energy expenditure (EE) prediction equations. Thirty-four subjects (29 men ...
Purpose To evaluate the validity of a uni-axial accelerometer (MTI Actigraph) for measuring physical activity in people with acquired brain injury (ABI) using portable indirect calorimetry (Cosmed K4b2) as a criterion measure. Methods Fourteen people with ABI and related gait pattern impairment (age 32 +/- 8 yr) wore an MTI Actigraph ...
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 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 ...
Purpose To study the mica- and inter-instrument reliability and validity of the Computer Science & Applications (CSA) Model 7164 accelerometer, along with the nature of the analogue filter in the device with sinusoidal movements in a mechanical setting. Methods Six CSA units were tested with 17 different frequencies (0.5-4Hz) on three ...