Purpose: The purpose of this study was to evaluate differences in sedentary time between employed women who meet minimum exercise recommendations and those who do not. Methods: Activity levels were assessed by the Actigraph GT3X+ over 7 days in 103 employed women (age: 44.4±11.8). Demographic variables and perception of worksite facilities to ...
Introduction: Cognitive function (CF) is responsible for mental and intellectual processes. The effects of physical activity (PA) on cognition are likely to be over brain structure and function. During childhood, nervous system structures are growing fast representing a crucial period for cognitive development. Purpose: Analyze both cross-sectional and longitudinal associations ...
Background and Aim: Research on physical activity and mental health has mainly focused on mental disorders. However, mental health is not merely the absence of disorders but also comprises well-being. An indicator of work-related well-being is work engagement. The aim of this study was to explore associations of moderate to ...
Abstract: The Czech Republic lacks body composition (BC) and physical activity (PA) data for children. Therefore, the purpose of the study was to analyze BC and PA in sample of Czech children and to find a gender-specific association between these variables. In this study we analyzed data of 129 children (75 girls) ...
Aim: To assess the criterion validity of the ActiGraph inclinometer algorithm for detecting sitting and standing postures when worn on the thigh and waist. Methods: Thirty-nine adults (46% female, age: 31.0±8.8 years, BMI: 26.7±5.0 kg/m2) were directly observed whilst participating in a range of sedentary (typing on a computer, watching television, playing ...
Purpose: Impact loading of bone is thought to be an important prevention for osteoporosis throughout life. The purpose of this study was to assess validity of accelerometers that provide raw acceleration signals with ground reaction force (GRF) for daily physical activities in children. Understanding error of these devices is a ...
Aim: The aim of this study was to assess time trends in objectively assessed physical activity in a population based sample of children and adolescents living in Norway. Methods: The sample population (n=4766) consists of two independent samples of 9- and 15-year-old children recruited within the PANCS project in 2005-06 ...
Objective: In order to determine Physical Activity (PA) levels under a health enhancing perspective, Physical activity questionnaires (PAQs) are widely used. Recall ability is a known systematic error in PAQs. The aim of the investigation was to assess the impact of age and type of activity (moderate or vigorous) on ...
Purpose: To compare the Freedson, Crouter and Santos-Lozano (vertical axis [VT] and vector-magnitude [VM]) equations for ActiGraph GT3X+ (AG) with indirect calorimetry for predicting energy expenditure (EE) in older adults in free-living environments. Methods: Forty older adults (age=77.36 yr (SD+8.13; range 66 to 99 years), BMI=25.96 kg∙m-2 (SD=3.67) completed a ...
Background: Physical activity and sedentary behaviour of South African preschool children has not been previously assessed, nor has the impact of socioeconomic status on these behaviours. Methods: Physical activity was measured objectively using Actigraph GT3X+ accelerometers on children 3-6 years old, including children from low income (n=87) and high-income (...