69 documents found, page 1 of 7

Genetic regulation of body size and morphology in children: a twin study of 22 ...

Anthropometric measures show high heritability, and genetic correlations have been found between obesity related traits. However, we lack a comprehensive analysis of the genetic background of human body morphology using detailed anthropometric measures. METHODS: Height, weight, 7 skinfold thicknesses, 7 body circumferences and 4 body diameters (skeletal breaths) were measured in 214 pairs of twin children aged ...

Physical fitness spurts in pre-adolescent boys and girls: Timing, intensity and...

Biological and environmental influences on motor coordination in Peruvian child...

Associations between nutrition, energy expenditure and energy availability with...

Three years of study showed that female and male vocational dancers displayed lower bone mass compared to controls, at forearm, lumbar spine and femoral neck. Energy intake was found to positively predict bone mass accruals only in female dancers at femoral neck. Vocational dancers can be a risk population to develop osteoporosis.

Regional variation in growth status. The Peruvian health and optimist growth study

Objective: This study aims to (1) investigate differences in weight, body mass index (BMI), and waist circumference (WC) among Peruvian children and ado lescents living in three areas located at different altitudes; (2) compare age and sex-specific height, weight, and BMI within each site with US reference data. Methods: We sampled 8753 subjects (4130 boys), aged 4 to 17 years from sea level, rainforest, and hi...

Physical fitness spurts in childhood: a study in boys

This study aimed to (1) estimate age-at-mid-growth spurt (age-at-MGS) in Portuguese boys from two different regions—the Azores islands and Viana do Castelo, and (2) identify spurts in a variety of physical fitness (PF) components aligned by age-at MGS in the two samples. A total of 176 (Azores, n = 91; Viana do Castelo, n = 85) boys aged 6 years old were followed annually to 10 years of age. Age-at-MGS and spur...

Physical fitness spurts in pre-adolescent boys and girls: Timing, intensity and...

We aim to (1) estimate age of attainment of the peak mid-growth spurt in stature (age-at-peak MGS) in pre-adolescent boys and girls; (2) identify the timing, intensity, and sequences of physical fitness (PF) spurts aligned by the age-at-peak MGS; and (3) identify any sex differences in PF spurts aligned by age-at peak MGS. The sample included 180 Portuguese children (90 girls) aged 6 to 10 years at study entry ...

Growth, stability and predictors of word reading accuracy in European Portugues...

This study investigated the trajectories of word reading performance in European Portuguese from Grade 1 to Grade 4. First, we examined the developmental trajectories of students ’ word reading performance; second, we tested the influence of students ’ demographic characteristics and socioeconomic status on their word reading performance growth, as well as the existence of differences in the trajectories of typ...

Why are children different in their moderate-to-vigorous physical activity leve...

Stunting and physical fitness: The Peruvian health and optimist growth study