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  • J A Casajús
  • 2001
BACKGROUND There have been many studies on soccer, but few evaluations of the physiological function of professional soccer players. The aim of this work was to evaluate seasonal variation--from September to February--in anthropometric and physiological variables in a Spanish professional soccer team (n=15). METHODS Anthropometric measurements were(More)
AIMS To evaluate the effect of physical performance and extracurricular organized physical activities (EOPA) in normal- and overweight children. METHODS A random sample of 1,068 schoolchildren (7-12 years old) representative of the region of Aragon (Spain) was selected and divided into normal-, overweight and obese groups based on previously published(More)
It is widely recognized that the risk of fractures is closely related to the typical decline in bone mass during the ageing process in both women and men. Exercise has been reported as one of the best non-pharmacological ways to improve bone mass throughout life. However, not all exercise regimens have the same positive effects on bone mass, and the studies(More)
BACKGROUND Swimming, a sport practiced in hypogravity, has sometimes been associated with decreased bone mass. AIM This systematic review aims to summarize and update present knowledge about the effects of swimming on bone mass, structure and metabolism in order to ascertain the effects of this sport on bone tissue. METHODS A literature search was(More)
Children and adolescents with Down syndrome (DS) have lower levels of bone mass compared with youths without DS. Their sexual dimorphism in bone mass also differs from that observed in children and adolescents without Down syndrome. This study aimed to compare bone mass and sexual dimorphism in bone mass between male and female youths with DS and age- and(More)
The present study aimed to determine the effect of 20 weeks of whole body vibration (WBV) on the body composition of adolescents with Down syndrome (DS). Thirty adolescent with DS were divided into two groups: control and WBV. Whole body, upper and lower limbs body fat and lean body mass were measured with dual energy X-ray absorptiometry (DXA) before and(More)
OBJECTIVES The purpose of this study was to determine the sex-specific physical activity (PA) intensity thresholds that best discriminate between unhealthy/healthy cardiorespiratory fitness (CRF). METHODS Participants included 1,808 adolescents (964 girls), aged 12.5-17.5 years, from the HELENA study. We measured PA by accelerometer and calculated the(More)
OBJECTIVE The main purpose of this study was to determine the relationship between physical activity (PA) levels and adiposity. The secondary purpose was to assess the effect of physical fitness and living area on adiposity. RESEARCH METHODS AND PROCEDURES A cross-sectional study was carried out in a regional representative sample of 1068 children 7 to 12(More)
Mitochondrial background has been demonstrated to influence maximal oxygen uptake (VO(2max), in mLkg(-1)min(-1)), but this genetic influence can be compensated for by regular exercise. A positive correlation among electron transport chain (ETC) coupling, ATP and reactive oxygen species (ROS) production has been established, and mitochondrial variants have(More)
The aim of this study was to provide information about the relationship of bone mineral content (BMC) and density (BMD) with some physical-fitness-related variables in a sample of women with fibromyalgia (FM) and age-matched women without FM. Twenty-eight women clinically diagnosed with FM (age 51.1 ± 8.4 yr, M ± SD) and 22 age-matched controls participated(More)