Search Results
Results 351 - 400 of 937
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Chen Yongjie - - 2011
Exercise training has been reported to prevent bone loss in ovariectomized (OVX) rats and postmenopausal women. We hypothesized that treadmill training inhibited adipogenesis and enhanced osteogenesis through the regulation of adipocyte differentiation factor peroxisome proliferators-activated receptor gamma (PPARγ) and the osteogenic factor runt-related transcription factor 2 (Runx2) in a model ...
Goulet G C - - 2011
The role of exercise in promoting bone health is typically attributed to increased mechanical loading, which induces functional adaptation. Recent evidence suggests that habitual aerobic exercise has influence at the cellular level as well. The effect of aerobic capacity on osteoblast-lineage cell differentiation and function as well as skeletal phenotype ...
Karabulut Murat - - 2011
The aim of this study was to examine and compare the effects of different resistance training protocols on bone marker concentrations in older men. Thirty-seven healthy older male subjects were assigned to one of three groups: high-intensity resistance training (HI-RT, age = 57.5 ± 0.8); low-intensity resistance training with vascular restriction (LI-VRT, age = 59.9 ± 1.0); and ...
Kukuljan Sonja - - 2011
Context: Exercise and calcium-vitamin D are independently recognized as important strategies to prevent osteoporosis, but their combined effects on bone strength and its determinants remain uncertain. Objective: To assess whether calcium-vitamin D3 fortified milk could enhance the effects of exercise on bone strength, structure, and mineral density in middle-aged and ...
DU F - - 2011
Objective: To observe the association of osteoporotic fracture with habits of smoking, alcohol consumption, tea consumption and exercise among very old people. Design and setting: A cross-sectional study conducted in Dujiangyan Sichuan China. Participants: 703 unrelated Chinese nonagenarians and centenarians (67.76% women, mean age 93.48 years) resident in Dujiangyan. Measurements: ...
Kraaier K - - 2011
Previous studies have demonstrated that microvolt T-wave alternans (TWA) screening in patients with ischaemic and dilated cardiomyopathy is effective in identifying patients at high or low risk of sudden cardiac death. It remains unclear which percentage of potential recipients of an implantable cardioverter defibrillator (ICD) are able to perform TWA ...
Paulus David C - - 2011
Spaceflight leads to muscle and bone atrophy, and isoinertial (free-weight) exercises provide a sufficient stimulus to elicit increases in both muscle strength and bone mineral density in earth-based studies. Therefore, a computer controlled resistance exercise device is being developed for NASA that is able to simulate the inertial loading experienced ...
Yeh Chao Hsing - - 2011
Fatigue is one of the most frequent symptoms experienced by children with cancer during treatment. Effective management of fatigue is essential for improving children's quality of life. The aim of this study was to examine the feasibility of a home-based aerobic exercise intervention to reduce fatigue in children with acute ...
Nordström Anna - - 2011
One of the toughest tasks in any profession is the deliverance of death notification. Marathon Death is an exercise conducted during the fourth year of medical school in northern Sweden to prepare students for this responsibility. The exercise is designed to enable students to gain insight into the emotional and ...
Wilson Mathew G - - 2011
Regular and prolonged exercise is associated with increased left ventricular wall thickness that can overlap with hypertrophic cardiomyopathy (HCM). Differentiating physiological from pathological hypertrophy has important implications, since HCM is the commonest cause of exercise-related sudden cardiac death in young individuals. Most deaths have been reported in intermittent 'start-stop' sports ...
Jouven Xavier - - 2011
Data from several previous studies examining heart-rate and cardiovascular risk have hinted at a possible relationship between heart-rate and non-cardiac mortality. We thus systematically examined the predictive value of heart-rate variables on the subsequent risk of death from cancer. In the Paris Prospective Study I, 6101 asymptomatic French working men ...
Frizziero Antonio - - 2011
Different conditions may alter tendon characteristics. Clinical evidence suggests that tendon injuries are more frequent in athletes that change type, intensity and duration of training. Aim of the study was the assessment of training and especially detraining on the patellar tendon (PT) and its enthesis. 27 male adult Sprague-Dawley rats ...
Ducher Gaele - - 2010
Pre- and early-puberty may be the most opportune time to strengthen the female skeleton, but there is little longitudinal data to support this claim. Competitive female pre-menarcheal ('PRE/PERI', n=13) and post-menarcheal ([POST], n=32) tennis players aged 10-17 years were followed over 12 months. The osteogenic response to loading was studied ...
da Silva Fabiano Fernandes - - 2010
Abstract Objective: Raman spectroscopy was employed to evaluate the effect of different swimming intensities on femoral bone composition in an animal model. Background Data: Intense swimming exercise may affect bone mineralization, and Raman technique has been shown to be effective in evaluating tissue composition (phosphate minerals and carbonate apatites - ...
Scott Jonathan P R - - 2011
We compared the effects of exercise intensity (EI) on bone metabolism during and for 4 days after acute, weight-bearing endurance exercise. Ten males [mean ± SD maximum oxygen uptake (Vo(2max)): 56.2 ± 8.1 ml·min(-1)·kg(-1)] completed three counterbalanced 8-day trials. Following three control days, on day 4, subjects completed 60 min ...
Duraković Zijad - - 2010
A teenager aged 17 was a professional soccer player, and was without symptoms. He died suddenly during physical exercise at the field. All reanimation efforts were unsuccessfull. At the forensic autopsy he had suppurative bacterial tonsillitis, subacute diffuse myopericarditis and narrowing of the ascending aorta of 10 mm. In Croatia ...
Roche S Lucy - - 2010
The mechanisms underlying adverse electro-mechanical interaction after tetralogy of Fallot (TOF) repair remain unclear. This study investigated biventricular dyssynchrony in children with TOF and its relationship to exercise, QRS duration (QRSd) and ventricular mechanics. 29 asymptomatic children (5-18 years) with repaired TOF were prospectively evaluated by MRI, cardiopulmonary exercise testing ...
Marques Elisa A - - 2011
Physical exercise is advised as a preventive and therapeutic strategy against aging-induced bone weakness. In this study we examined the effects of 8-month multicomponent training with weight-bearing exercises on different risk factors of falling, including muscle strength, balance, agility, and bone mineral density (BMD) in older women. Participants were randomly ...
Lopez M A - - 2010
A collaboration of the EURADOS working group on 'Internal Dosimetry' and the United States Transuranium and Uranium Registries (USTUR) has taken place to carry out an intercomparison on measurements and Monte Carlo modelling determining americium deposited in the bone of a USTUR leg phantom. Preliminary results and conclusions of this ...
Prado D M - - 2010
The purpose of this study was to test the hypotheses that in obese children: 1) hypocaloric diet (D) improves both heart rate recovery at 1 min (Δ HRR1) cfter an exercise test, and cardiac autonomic nervous system activity (CANSA) in obese children; 2) Diet and exercise training (DET) combined leads ...
Templeton Danielle L - - 2010
We assessed relative bone mineral content (BMC) in normal-weight (BMI < 85th percentile), overweight (BMI ≥ 85th---< 95th percentile), and obese (BMI ≥ 95th percentile) adolescents and evaluated the impact of nonweight bearing stationary cycle exercise training in a subset of obese participants. Obese and overweight adolescents had higher (p ...
Wiegand Gesa - - 2010
Standard methods for determination of cardiac output (CO) are either invasive or technically demanding. Measurement of CO by the inert gas-rebreathing (IGR) method, applied successfully in adults, uses a low-concentration mixture of an inert and a blood-soluble gas, respectively. This study tested the feasibility of this method for determining CO ...
Lammers Astrid E - - 2011
To assess the relationship between 6-min walk test (6MWT) distance and variables of cardiopulmonary exercise testing (CPET) in children with pulmonary arterial hypertension (PAH). Retrospective study. Tertiary hospital. Children with PAH. CPETs and 6MWTs. Correlations between variables of CPET and 6MWT distance. 41 exercise studies were included: 15 in children ...
Kersten E T G - - 2010
SUMMARY RATIONALE: Asthma therapy should be stepped up or stepped down in response to changes in asthma control. However, there is little evidence available on the optimal timing, sequence, and degree of medication reductions. In this study we analyzed clinically stable asthmatic children who underwent a medication reduction from a ...
Balas-Nakash Margie - - 2010
To assess the effects of two groups of exercise routines on cardiovascular disease risk markers. An intervention study was conducted with 319 Mexican school-aged children in which routines were implemented Monday through Friday for 12 weeks. Routine A was the reference group, with 20 min of less intense activity and ...
Funakoshi Yayoi - - 2011
Both genetic and lifestyle factors have been shown to influence bone mineral density (BMD). We investigated the correlations between BMD and low-density lipoprotein receptor-related protein 5 (LRP5) A1330V (rs3736228) polymorphism, exercise, smoking, and alcohol intake in Japanese male workers. The subjects were 829 male employees (aged 20-59 years) of a ...
Wong G K Y - - 2010
The presentation of wheat dependent exercise induced anaphylaxis (WDEIA) can be variable. A high index of clinical suspicion is required to initiate the investigation pathway. Double blind placebo controlled food-exercise challenge is the gold standard investigation but the practicality of this test limits its application. To critically analyse the symptoms ...
van der Cammen-van Zijp Monique H M - - 2010
Children with major anatomical congenital anomalies (CA) often need prolonged hospitalization with surgical interventions in the neonatal period and thereafter. Better intensive care treatment has reduced mortality rates, but at the cost of more morbidity. To study motor-function and exercise capacity in five-year-old children born with CA, and to determine ...
Robson-Ansley Paula - - 2010
PURPOSE OF REVIEW: The aim of this review is to challenge the current opinions of the pathophysiological mechanisms that give rise to food dependent exercise-induced anaphylaxis (FDEIA) and to consider these mechanisms within the wider context of exercise physiology to further inform our understanding and treatment of this condition. RECENT ...
Budde Henning - - 2010
We investigated if 12 min of high-intensity exercise performed within a regular school break lead to an increase in cortisol levels in primary school students. 53 students of a 4th grade (9-10 years of age) were randomly assigned to an experimental (EG) and a control group (CG). Saliva collection took ...
Sauseng W - - 2011
Ghrelin is a peptide hormone, which plays an important role in appetite regulation. The effects of exercise on ghrelin plasma concentrations are still not clear, especially in children and adolescents. The aim of this study was to investigate the response of acylated and total ghrelin concentrations to controlled exercise in ...
Møller Niels C - - 2010
Raised blood pressure (BP) response during exercise independently predicts future hypertension. Subjects with higher BP in childhood also have elevated BP later in life. Therefore, the factors related to the regulation of exercise BP in children needs to be well understood. We hypothesized that physiological cardiovascular disease (CVD) risk factors ...
Willcocks Rebecca J - - 2010
The aim of this investigation was to examine the adaptation of the muscle phosphates (e.g. phosphocreatine (PCr) and ADP) implicated in regulating oxidative phosphorylation, and oxygenation at the onset of high intensity exercise in children and adults. The hypotheses were threefold: primary PCr kinetics would be faster in children than ...
Barker Alan R - - 2010
PURPOSE: This study tested the hypothesis that the muscle metabolic responses of 9- to 12-yr-old children and young adults during incremental quadriceps exercise are dependent on age and sex. METHODS: Fifteen boys, 18 girls, 8 men, and 8 women completed a quadriceps step-incremental test to exhaustion inside a magnetic resonance ...
McEntire Serina J SJ Shriners Hospitals for Children, Galveston, Texas, - - 2010
The authors have previously described thermoregulatory responses of severely burned children during submaximal exercise in a thermoneutral environment. However, the thermoregulatory response of burned children to exercise in the heat is not well understood and could have important safety implications for rehabilitation. Children (n = 10) with >40% TBSA burns ...
McBride Michael G - - 2010
Exercise performance in individuals with cystic fibrosis has been shown to be related to the extent of pulmonary dysfunction and undernutrition and genetic profile. The aim of this study was to examine these relationships in young children with cystic fibrosis. The participants were 64 children ages 8 to 11 years ...
Nemet Dan - - 2010
OBJECTIVE: To examine the immediate effect of three different types of popular exercise activities on food intake and preferences in normal weight and overweight children. SUBJECTS AND METHODS: Forty-four (22 overweight) age and gender matched, pre-pubertal children participated in four separate visits. All performed three typical, 45 min, aerobic, indoor ...
Leclair Erwan - - 2010
This study was designed to test the reproducibility of muscle oxygenation by NIRS in children during exercise. Twelve healthy non-obese and non-trained children performed one maximal graded test, and four 6-min constant load cycle exercises. Deoxy-hemoglobin (Hb/Mb- H+) data were averaged every 1, 5, 10, 20 and 30s. Hb/Mb- H+ ...
Jan Sheng-Ling - - 2010
OBJECTIVE: An aberrant subclavian artery (aSCA) is the most common congenital anomaly of the aortic arch. Most cases are asymptomatic and found incidentally.This study was conducted to estimate the occult exercise-induced oesophago-tracheal compression (EIETC) in children with isolated aSCA found by screening echocardiography. METHODS: A total of 42 asymptomatic children ...
Hill Liam - - 2010
to investigate whether increased physical exercise during the school day influenced subsequent cognitive performance in the classroom. a randomized, crossover-design trial (two weeks in duration) was conducted in six mainstream primary schools (1224 children aged 8-11y). No data on sex was available. Children received a teacher-directed, classroom-based programme of physical ...
Long Amy R - - 2010
PURPOSE OF REVIEW: The current review summarizes the existing knowledge about exercise therapy in the management of juvenile idiopathic arthritis (JIA) along with activity level, functional abilities and exercise capacity of this population. RECENT FINDINGS: Current studies show that children with JIA are considerably less active than their peers. They ...
Bjelakovic Bojko - - 2010
Ventricular arrhythmias (VAs) are common pediatric rhythm disorders requiring comprehensive laboratory evaluation. Although usually idiopathic, implying a benign character and favorable prognosis, the initial clinical approach is still not established in all cases. Considering their prognostic significance, exercise-induced (precipitated or aggravated) VAs usually require additional diagnostics, treatment, and follow-up. A ...
Hung Winnie W Y - - 2010
OBJECTIVE: To compare the effects of group-based and individual-based motor skill training on motor performance in children with developmental coordination disorder. DESIGN: Randomized controlled pilot intervention study. SUBJECTS/PATIENTS: Twenty-three children (4 girls) with developmental coordination disorder (mean age (standard deviation (SD)) 8 years (1 year and 2 months)). METHODS: Twelve ...
Katz-Leurer Michal - - 2010
OBJECTIVES: To measure heart rate (HR) and heart rate variability (HRV) at rest and during exercise in children with post-severe traumatic brain injury as compared to age-matched typically-developed controls. DESIGN: Comparative study. SETTING: Out-patient rehabilitation department. PARTICIPANTS: Twelve boys post-severe traumatic brain injury (TBI) (aged 7-13 years) and 18 typically-developed ...
Loureiro Nuno - - 2010
This study examines associations between perceptions of neighbourhood environment and physical activity and sports within Portuguese adolescents. The sample consisted of 4,877 individuals of both genders, with an average age of 14 years. The instrument used was the Health Behavior School-aged Children questionnaire. Perceptions of the neighbourhood being unsafe for ...
Bergmann P - - 2010
Mechanical loading is a major regulator of bone mass and geometry. The osteocytes network is considered the main sensor of loads, through the shear stress generated by strain induced fluid flow in the lacuno-canalicular system. Intracellular transduction implies several kinases and phosphorylation of the estrogen receptor. Several extra-cellular mediators, among ...
Takken Tim - - 2010
The role of exercise as a diagnostic or therapeutic tool in patients with a metabolic disease (MD) or neuromuscular disorder (NMD) is relatively underresearched. In this paper we describe the metabolic profiles during exercise in 13 children (9 boys, 4 girls, age 5-15 yrs) with a diagnosed MD or NMD. ...
Abe Takashi T Graduate School of Frontier Sciences, University of Tokyo , Kashiwa, - - 2010
Concurrent improvements in aerobic capacity and muscle hypertrophy in response to a single mode of training have not been reported. We examined the effects of low-intensity cycle exercise training with and without blood flow restriction (BFR) on muscle size and maximum oxygen uptake (VO2max). A group of 19 young men ...
Bolgar Melinda R MR Jacksonville State University , Jacksonville, AL, - - 2010
The purpose of the study is to examine the effect of aerobic exercise intensity on components of the differentiated perceived exertion model in young women performing weight bearing and non-weight bearing aerobic exercise. Subjects were 18-25 yr old women who were recreationally active (n = 19; VO2max = 33.40 ml·kg(-1)·min(-1)) ...
Wallman Karen E KE School of Sport Science, Exercise and Health, The University of Western Australia , Perth, Western - - 2010
The purpose of the study was to examine the effect of caffeine ingestion on total work, average power, oxygen consumption (VO2), respiratory exchange ratio (RER), ratings of perceived exertion (RPE), heart rate (HR) and energy expenditure (kJ) during stationary cycling at a standardised power output, as well as during a ...
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