Objective To highlight the discrepancies in accelerometry cut-off points of moderate-to-vigorous physical activity (MVPA) according to the definitions of Puyau et al. (MVPA(P)) and Trost et al. (MVPA(T)). Research Methods and Procedures Forty-five children from 8 to 11 years old were monitored with the ActiGraph (ActiGraph, LLC, Fort Walton Beach, ...
There is increasing public health concern that levels of physical activity in children are extremely low. This study aimed to describe objectively levels of physical activity and sedentary behaviour during the waking hours in a sample of 4-5 year old (median 5.4 years range 4.3, 6.0) rural Irish children (n=41) and to test ...
Purpose To examine the levels of PA in children and adolescents in relation to published recommendations. Methods total of 439 nine-year-olds (202 boys and 237 girls) and 364 fifteen-year-olds (156 boys and 208 girls) agreed to participate. Amount of PA was measured during four consecutive days (two weekdays and two weekend days) with an activity monitor (...
Background Atherosclerosis develops from early childhood; physical activity could positively affect this process. This study’s aim was to assess the associations of objectively measured physical activity with clustering of cardiovascular disease risk factors in children and derive guidelines on the basis of this analysis. Methods We did a cross-sectional ...
Four Computer Science and Applications (CSA, Model 7164) accelerometers were validated against speed and heart rate in a field trial, consisting of two walking and two preset running speeds, and 3 min of running at freely chosen speeds. Fifteen children (9–11 years) were recruited from a suburban school in Denmark. Mean CSA output ...
Research analyzing the influence of physical activity (PA) on skeletal have been focused on bone material properties such as bone mass and few studies were conducted on bone morphologic properties. Purpose To analyze the influence of PA on morphologic variation of proximal femur in pre-pubertal boys, probably the most active ...
Children's independent mobility has fallen in recent years and may in part explain reported declines in physical activity in young people. This cross-sectional study investigated whether independent mobility in boys and girls was related to objectively measured physical activity. Methods Thirteen hundred and seven 10-11 year old boys and girls ...
Objective To objectively measure habitual physical activity and sedentary behaviour in a clinical sample of obese children and to compare with age- and sex-matched non-obese controls. DESIGN: Pairwise comparison of obese children matched for age and gender with non-obese controls. Subjects A total of 116 obese children (body mass index (BMI)> ...
Purpose To test for relationships between objectively measured habitual physical activity and fundamental movement skills in a relatively large and representative sample of preschool children. Methods Physical activity was measured over 6 d using the Computer Science and Applications (CSA) accelerometer in 394 boys and girls (mean age 4.2, SD 0.5 yr). Children were ...
Purpose Bone adapts to changing mechanical loads by altering the structure appropriately. These adaptations should be evident in the bone cross-sectional area (CSA) and section modulus (Z), indices of axial and bending strength, respectively. In this cross-sectional study, we investigated associations between physical activity, CSA, and Z in 467 young children (...