INTRODUCTION The aim of this study was to investigate the relative influence of genetic and environmental factors on children's leisure time exercise behavior through the classic twin design. METHODS Data were taken from The Netherlands Twin Register. The twins were 7 (n = 3966 subjects), 10 (n = 3562), and 12-yr-olds (n = 8687), with longitudinal data for 27% of the sample. Parents were aske...

PURPOSE Calorie restriction (CR) improves health span and delays age-related diseases in many species. The multicenter Comprehensive Assessment of Long-term Effects of Reducing Intake of Energy (CALERIE) study was the first randomized controlled trial of CR in nonobese humans. The aim of this investigation was to determine the effects of CR on V˙O2max and muscle strength in the CALERIE trial. ...

Childhood burns in Egypt are a significant problem, especially in families of low socioeconomic status. These families live in overcrowded flats using kerosene stoves but lacking proper hygiene and adequate safety measures. Over the 6-yr period 2004-2009 a total number of 1999 burned children (1440 children treated as out-patients with less than 10% total body surface area [TBSA] burned plus 55...

This study examined longitudinal changes in the pulmonary oxygen uptake (pVO(2)) kinetic response to heavy-intensity exercise in 14-16 yr old boys. Fourteen healthy boys (age 14.1 +/- 0.2 yr) completed exercise testing on two occasions with a 2-yr interval. Each participant completed a minimum of three 'step' exercise transitions, from unloaded pedalling to a constant work rate corresponding to...

Angiotensin II type 1 receptor antibodies (AT1 RAb) have emerged as non-HLA Ab present in patients with acute AMR and risk of graft loss. Furthermore, AT1 RAb have been shown to increase angiotensin II sensitivity which may play a role in the development of CVD and hypertension. Data on AT1 RAb in stable transplant recipients are lacking. The aim of this study was to analyze the levels of AT1 R...

S OF ILLUSTRATIVE HISTORIES Patients with Marked Symptoms of Cretinism From Birth and No Uptake of V31 Case 1. It was noted at birth that the infant had a peculiar bloated appearance with puffy features. short fat neck and depressed nasal bridge. The tongue was thick and protruded so that he had difficulty breathing and feeding. His hands and feet were always cold and the skin was dry. dusky an...

S OF ILLUSTRATIVE HISTORIES Patients with Marked Symptoms of Cretinism From Birth and No Uptake of V31 Case 1. It was noted at birth that the infant had a peculiar bloated appearance with puffy features. short fat neck and depressed nasal bridge. The tongue was thick and protruded so that he had difficulty breathing and feeding. His hands and feet were always cold and the skin was dry. dusky an...

the aim of the present study was to investigate the effect of different methods of self-talk (motivational, instructional, and combined) on acquisition and learning of a motor perceptional task (dart) and physical efficacy in female students aged between 13 and 18. 48 female students (mean age 15.46 yr) who were novice at dart throwing voluntarily participated in this study. participants were d...

The level of daily physical activity in 11 non-hospitalized women with anorexia (age: 21-48 yr, body mass index (BMI): 12.5-18.3 kg.m-2), compared with 13 normal-weight women (age: 20-35 yr, BMI 19.2-26.7 kg.m-2), was studied in relation to BMI. Daily physical activity over a 7-d period was determined from movement registration and by combining measurements of average daily metabolic rate (meas...