Background Physical inactivity is a risk factor for obesity, cardiovascular disease, hypertension, and other chronic diseases that are increasingly prevalent in the U.S. and worldwide. Time at work represents a major portion of the day for employed people. Purpose To determine how employment status (full-time, part-time, or not employed) ...
Introduction Widely accepted models of disability suggest that how much a neurologically-impaired arm is actually used in everyday life frequently deviates from its motor capacity, as measured by laboratory tests. Yet, until recently, instruments in physical rehabilitation did not directly assess real-word use of the impaired arm after stroke and ...
Physical activity is an important factor for healthcare intervention delivery and clinical outcome measurement in rehabilitation medicine, rheumatology, aging and cardiovascular medicine. A psychological perspective in ambulatory behavior monitoring does focus on the relation between behavior (physical activity, posture, movement) and phenomena like mood or emotions. Whereas numberless studies propose ...
The absence of comparative validity studies has prevented researchers from reaching consensus regarding the application of intensity-related accelerometer cut points for children and adolescents. Purpose This study aimed to evaluate the classification accuracy of five sets of independently developed ActiGraph cut points using energy expenditure, measured by indirect calorimetry, as ...
Accelerometers are considered to be the most promising tool for measuring physical activity (PA) in free-living young children. So far, no studies have examined the feasibility and validity of accelerometer measurements in children under 3 years of age. Therefore, the purpose of the present study was to examine the feasibility and ...
Introduction Pattern recognition classification algorithms have successfully identified energy cost and activity type from hip-worn accelerometers (ACC) [1,2]. These algorithms evaluate attributes of the acceleration signal during high frequency sampling. ACC output similarities and differences across activity types are well characterized [3]. An often overlooked area of potential difference lies in movement ...
Introduction Most accelerometry research is in children and adults. Literature on accelerometry in older adults is limited and many studies rely on validity studies completed on younger adults to determine cutpoints for exercise intensity. The purpose of this study was: to review the literature to identify studies that used ActiGraph ...
Introduction The interest in physical activity (PA) to prevent pediatric obesity has increased during the past decade. However, to start with obesity preventative efforts, adequate measurements of PA are needed. Although accelerometers have been put forward as an adequate method to assess preschoolers’ PA, survey measures of PA can be ...
Introduction The most popular accelerometers in physical activity research are the Actigraph uniaxial accelerometer (AGR, Model GT1M, Actigraph, Shalimar, CA) and the RT3 triaxial accelerometer (Stayhealthy Inc, Monrovia, CA). When a large population is evaluated at the same time, the use of several accelerometers is necessary. To be able ...
Introduction The aims of this study were to assess the quality of data on physical activity obtained by recall from British Pakistani women, and to explore the feasibility of using accelerometer-based physical activity monitors to provide more objective measure of physical activity in this group. Previously only questionnaire data have ...