Background Limited information is available about changes over time in objectively measured daily physical activity in young children. This study evaluates if accelerometer-measured physical activity tracks or changes over two years. Methods Daily physical activity was assessed by the Actigraph accelerometer for four consecutive days in 167 children (boys n=90, girls ...
Introduction Physical activity is a major public health concern as trends show inadequate levels of physical activity for health and rising levels of obesity. A research priority is understanding key explanatory variables underpinning children’s physical activity participation. Despite this, there are few studies identifying “clusters” of children based on ...
Introduction There is concern that preschool children are not physically active enough to benefit health, yet few interventions have attempted to increase physical activity (PA) in this population. This study aimed to investigate the effectiveness of a 6-week school based Active Play intervention on children’s moderate-to-vigorous physical activity (MVPA) ...
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 It is important to understand the determinants of physical activity needed to influence policy and create environments that promote physical activity among preschool children. Physical activity levels were studied with the aims to compare outdoor and indoor activity and to analyze minutes spent in sedentary, light, moderate and vigorous ...
Introduction South Asian minority groups in the UK are at greater risk of heart disease and diabetes than the general White population. Physical activity plays an important role in the onset of these diseases. A recent study using accelerometers showed that girls had lower levels of physical activity than boys, ...
Introduction There is no consistency in the literature as to the amount of accelerometry monitoring time required to reliably determine habitual physical activity behaviour in preschool children. This study aims to identify how many days, and what percentage of time each day, of monitoring is required. Methods Data from ActiGraph ...
Over the past decade, accelerometers have increased in popularity as an objective measure of physical activity in free-living individuals. Evidence suggests that objective measures, rather than subjective tools such as questionnaires, are more likely to detect associations between physical activity and health in children. To date, a number of studies ...
Introduction The assessment of energy cost in paediatric populations has typically occurred in laboratory settings, which usually obtain higher validity coefficients. However, laboratory based protocols may be limited in the assessment of free-living behaviours as creating environments that reflect such behaviours is difficult [1]. Few studies have provided children the option ...