Objective measurement of physical activity remains an important challenge. For wearable monitors such as accelerometer-based physical activity monitors, more accurate methods are needed to convert activity counts into energy expenditure (EE). Purpose The purpose of this study was to examine the accuracy of the refined Crouter 2-Regression Model (C2RM) ...
Background Accurate objective assessment of sedentary and physical activity behaviours during childhood is integral to the understanding of their relation to later health outcomes, as well as to documenting the frequency and distribution of physical activity within a population. Purpose To calibrate the Actigraph GT1M accelerometer, using energy expenditure (...
Background Accurate objective assessment of sedentary and physical activity behaviours during childhood is integral to the understanding of their relation to later health outcomes, as well as to documenting the frequency and distribution of physical activity within a population. Purpose To calibrate the Actigraph GT1M accelerometer, using energy expenditure (...
Background Low physical activity (PA) is linked to cancer and other diseases prevalent in racial/ethnic minorities and low-income populations. This study evaluated the PA questionnaire (PAQ) used in the Southern Cohort Community Study, a prospective investigation of health disparities between African-American and white adults. Methods The PAQ was administered ...
The International Physical Activity Questionnaire (IPAQ-SF) has been validated and recommended as an efficient method to assess physical activity, but its validity has not been investigated in different population subgroups. We examined variations in IPAQ validity in the Hong Kong Chinese population by six factors: sex, age, job status, educational ...
Reliability and validity of accelerometer devices when used to detect differences in activity intensity and estimate energy expenditure in lean and overweight adults. Khalid S. AlJaloud, Adrienne R. Hughes, Stuart D.R. Galloway. Health and Exercise Science Research Group, School of Sport, University of Stirling, FK9 4LA. SCOTLAND, U.K. ...
Introduction Strategies to increase daily physical activity may be viewed as a mean to counteract the high prevalence of falls in elderly subjects, which is an important and increasing single factor associated with disability, injury and death. On the other hand when the elderly have reduced autonomy and consequent need ...
Introduction This study aimed to verify the effects of cardiorespiratory fitness levels over a set of cardiovascular risk factors, controlling for sex and physical activity (PA) of moderate (MPA), vigorous (VPA) and very vigorous (VVPA) intensities in children and adolescents. Methods Students aged 10-19 years (51 boys and 90 girls) completed measurements ...
Introduction Vigorous physical activity has been linked to greater longevity, greater loss of body fat mass, and improved insulin sensitivity. Current exercise guidelines now include recommendations for vigorous activity in recognition of these findings. The present study aimed to describe the free living physical activity intensity profile of lean (L) ...
Introduction Sedentary behavior (SB) is directly associated with a greater risk of death from cardiovascular problems, cancer and all causes. Moreover, SB is directly associated with obesity in children. This study examined whether there was a significant seasonal variation in objectively measured SB in Portuguese youth across five months of ...