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Fujii Takako T Exercise Nutrition Laboratory, Graduate School of Sport Sciences, Osaka University of Health and Sport Sciences, Osaka, Japan, - - 2014
We have previously reported that resistance exercise improved the iron status in iron-deficient rats. The current study investigated the mechanisms underlying this exercise-related effect. Male 4-week-old rats were divided into a group sacrificed at the start (week 0) (n = 7), a group maintained sedentary for 6 weeks (S) or a group that ...
Govus Andrew D AD Centre for Exercise and Sport Science Research, School of Exercise and Health Science, Edith Cowan University, Joondalup, WA, Australia, - - 2014
This study measured the influence of acute hypoxic exercise on Interleukin-6 (IL-6), hepcidin, and iron biomarkers in athletes. In a repeated measures design, 13 moderately trained endurance athletes performed 5 × 4 min intervals at 90 % of their peak oxygen consumption velocity (vVO2peak) in both normoxic [NORM, fraction of inspired oxygen (F IO2) = 0.2093, ...
Hinton Pamela S PS Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO 65211, - - 2014
Iron is a trace mineral that is highly significant to endurance athletes. Iron is critical to optimal athletic performance because of its role in energy metabolism, oxygen transport, and acid-base balance. Endurance athletes are at increased risk for suboptimal iron status, with potential negative consequences on performance, because of the ...
Pasricha Sant-Rayn SR Nossal Institute for Global Health, School of Population Health, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, VIC, - - 2014
Animal and human observational studies suggest that iron deficiency impairs physical exercise performance, but findings from randomized trials on the effects of iron are equivocal. Iron deficiency and anemia are especially common in women of reproductive age (WRA). Clear evidence of benefit from iron supplementation would inform clinical and public ...
Kristensen Lena L Holstebro Equine Practice, Vinderup, Denmark (Kristensen); Department of Large Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Taastrup, Denmark (Buhl, Bak, Petersen, Lindholm, Jacobsen); Department of Clinical Sciences, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences, Uppsala, Sweden - - 2014
The purpose of the study was to investigate whether acute strenuous exercise (1600- to 2500-m race) would elicit an acute phase response (APR) in Standardbred trotters. Blood levels of several inflammatory markers [serum amyloid A (SAA), haptoglobin, fibrinogen, white blood cell count (WBC), and iron], muscle enzymes [creatinine kinase (CK) ...
Kono Kenichi K Department of Rehabilitation, Aichi Medical College, Kiyosu, Aichi, - - 2014
Renal anemia, uremic myopathy, and malnutrition are some of the factors that affect the results of the 6-minute walk test (6MWT) in hemodialysis patients. We hypothesized that skeletal muscle dysfunction caused by skeletal myolysis, protein hypercatabolism, and mitochondrial deficiency are strongly related factors. The purpose of this study was to ...
Badenhorst Claire E CE School of Sport Science, Exercise and Health, The University of Western Australia, M408, 35 Stirling Hwy, Crawley, WA, 6009, - - 2014
To assess the influence of a simulated altitude exposure (~2,900 m above sea level) for a 3 h recovery period following intense interval running on post-exercise inflammation, serum iron, ferritin, erythropoietin, and hepcidin response. In a cross-over design, ten well-trained male endurance athletes completed two 8 × 3 min interval running sessions at 85 % of ...
Santhirapala Vatshalan V Imperial College School of Medicine, Imperial College, London, United Kingdom; National Heart and Lung Institute (NHLI) Cardiovascular Science, Imperial College, London, United Kingdom; Respiratory Medicine, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, United - - 2014
Oxygen, haemoglobin and cardiac output are integrated components of oxygen transport: each gram of haemoglobin transports 1.34 mls of oxygen in the blood. Low arterial partial pressure of oxygen (PaO2), and haemoglobin saturation (SaO2), are the indices used in clinical assessments, and usually result from low inspired oxygen concentrations, or ...
Peeling Peter P School of Sport Science, Exercise and Health, The University of Western Australia, Crawley, Western Australia, - - 2014
This study explored the relationship between serum ferritin and hepcidin in athletes. Baseline serum ferritin levels of 54 athletes from the control trial of five investigations conducted in our laboratory were considered; athletes were grouped according to values <30 μg/L (SF<30), 30-50 μg/L (SF30-50), 50-100 μg/L (SF50-100), or >100 μg/L ...
Sim Marc M School of Sport Science, Exercise and Health, The University of Western Australia, Crawley, Western Australia, Australia. - - 2014
This investigation compared the effects of an extended period of weight-bearing (running) vs. non-weight-bearing (cycling) exercise on hepcidin production and its implications for iron status. Ten active males performed two separate exercise training blocks with either running (RTB) or cycling (CTB) as the exercise mode. Each block consisted of five ...
Kobayashi Yukiko Y Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Shimogamo, Sakyo, Kyoto, - - 2014
Studies have indicated that sports anemia is mainly associated with intravascular hemolysis induced by exercise. We hypothesized that such exercise-induced hemolysis leads to oxidative damage due to an increase in free iron caused by hematocyte destruction. Thirty-one male ICR mice were randomly divided into 3 groups: a rested control group, ...
Kong Wei-Na WN Laboratory of Molecular Iron Metabolism, College of Life Science, Hebei Normal University, Shijiazhuang 050016, Hebei Province, P. R. China ; Bioreactor and Protein Drug Research and Development Center of Hebei Universities, Hebei Chemical & Pharmaceutical College, Shijiazhuang 050026, Hebei Province, P. R. - - 2014
Iron is an important mineral element used by the body in a variety of metabolic and physiologic processes. These processes are highly active when the body is undergoing physical exercises. Prevalence of exercise-induced iron deficiency anemia (also known as sports anemia) is notably high in athletic populations, particularly those with ...
Sim Marc - - 2013
The trace element iron plays a number of crucial physiological roles within the body. Despite its importance, iron deficiency remains a common problem amongst athletes. As an individual's iron stores become depleted, this can affect their well-being and athletic capacity. Recently, altered iron metabolism in athletes has been attributed to ...
Dellavalle Diane M - - 2013
Studies in both animals and humans show a relationship between iron depletion without anemia (IDNA) and physical performance. Compared to their sedentary counterparts, female endurance athletes are at greater risk of IDNA, and consequences relevant to endurance athletes include reduced work capacity, and energetic efficiency (EF). We conducted a randomized ...
McClung James P - - 2013
Hepcidin, a peptide that is released into the blood in response to inflammation, prevents cellular iron export and results in declines in iron status. Elevated serum and urinary levels of hepcidin have been observed in athletes following exercise, and declines in iron status have been reported following prolonged periods of ...
Qian Chen - - 2013
Adult hippocampus is highly vulnerable to iron-induced oxidative stress. Aerobic exercise has been proposed to reduce oxidative stress but the findings in the hippocampus are conflicting. This study aimed to observe the changes of redox-active iron and concomitant regulation of cellular iron homeostasis in the hippocampus by aerobic exercise, and ...
Ma Xiaoya - - 2013
The prevalence of iron deficiency tends to be higher in athletic populations, especially among endurance-trained females. Recent studies have provided evidence that the iron-regulating hormone hepcidin is transiently increased with acute exercise and suggest that this may contribute to iron deficiency anemia in athletes. The purpose of this study was ...
Kasner Mario - - 2013
Functional iron deficiency (FID) is an independent risk factor for poor outcome in advanced heart failure with reduced EF, but its role in heart failure with preserved EF (HFPEF) remains unclear. We aimed to investigate the impact of FID on cardiac performance determined by pressure-volume loop analysis in HFPEF. 26 ...
Dellavalle Diane M - - 2013
Iron is an essential micronutrient involved in oxidative metabolism and critical to exercise performance. The prevalence of iron deficiency (ID) is much higher in active women for a variety of reasons, and poor iron status has been shown to be detrimental to overall health as well as physical performance. Iron ...
Antosiewicz Jędrzej - - 2013
This investigation assessed effects of high-intensity interval exercise (HIE; triple Wingate anaerobic test) on inflammatory markers, iron metabolism and hepcidin concentrations. Group of highly trained judo athletes (TR) and non-trained control males (CG) completed a triple Wingate test separated by 4.5min rest. Venous blood samples were collected before, immediately after, ...
Ma Xiaoya - - 2013
The prevalence of iron deficiency tends to be higher in athletic populations, especially among endurance-trained females. Recent studies have provided evidence that the iron-regulating hormone, hepcidin, is transiently increased with acute exercise and suggest that this may contribute to iron deficiency anemia in athletes. The purpose of this study was ...
Pedlar Charles R CR School of Sport, Health and Applied Science, St Mary's University College, Twickenham, - - 2013
This case study examines the impact of low serum ferritin (sFe) on physiological assessment measures and performance in a young female 1500-m runner undertaking approximately 95-130 km/wk training. The study spans 4 race seasons and an Olympic Games. During this period, 25 venous blood samples were analyzed for sFe and ...
Bernardin Fanny - - 2013
A 5 mo old female rottweiler was referred for evaluation of a suspected congenital heart disease. Clinical signs included anorexia, exercise intolerance, and severe loss of body condition. Clinical examination revealed dyspnea, pale mucous membranes, and weak femoral pulses. Pleural and abdominal effusions and iron deficiency anemia were identified. A ...
Auersperger Irena I Faculty of Sport, University of Ljubljana, Ljubljana, - - 2013
Exercise-induced iron deficiency is a common finding in endurance athletes. It has been suggested recently that hepcidin may be an important mediator in this process. To determine hepcidin levels and markers of iron status during long-term exercise training in female runners with depleted and normal iron stores. Fourteen runners were ...
Howard Luke S G E LS Department of Cardiology, National Pulmonary Hypertension Service, Hammersmith Hospital, London, United Kingdom ; National Heart and Lung Institute, London, United - - 2013
Our aim is to assess the safety and potential clinical benefit of intravenous iron (Ferinject) infusion in iron deficient patients with idiopathic pulmonary arterial hypertension (IPAH). Iron deficiency in the absence of anemia (1) is common in patients with IPAH; (2) is associated with inappropriately raised levels of hepcidin, the ...
Sohn Eugene Y - - 2012
Exercise performance is decreased in patients with Thalassemia major (TM), but the relative impact of anemia and iron overload on exercise capacity is unknown. We assessed the cardiopulmonary function of 71, well-transfused TM patients via graded treadmill exercise stress test. All patients underwent MRI of the heart, pancreas, and liver ...
Jankowska Ewa A - - 2012
Iron is a micronutrient essential for cellular energy and metabolism, necessary for maintaining body homoeostasis. Iron deficiency is an important co-morbidity in patients with heart failure (HF). A major factor in the pathogenesis of anaemia, it is also a separate condition with serious clinical consequences (e.g. impaired exercise capacity) and ...
Latunde-Dada Gladys Oluyemisi - - 2012
Iron is an important mineral element required for diverse life processes. Its metabolism is almost synonymous to erythrocyte maintenance, erythropoiesis and erythrophagocytosis. Consequently, exercise exertion impacts significantly on red cell haematology. Here, the interactions between exercise and erythropoiesis are explored. Hepcidin, the peptide hormone that regulates systemic iron metabolism, decreases ...
Berwid Olga G - - 2012
Recent years have seen an expansion of interest in non-pharmacological interventions for attention-deficit/hyperactivity disorder (ADHD). Although considerable treatment development has focused on cognitive training programs, compelling evidence indicates that intense aerobic exercise enhances brain structure and function, and as such, might be beneficial to children with ADHD. This paper reviews ...
Wigal Sharon B - - 2012
ADHD is the most common neurobehavioral disorder of childhood, presenting with pervasive and impairing symptoms of inattention, hyperactivity, impulsivity, or a combination. The leading hypothesis of the underlying physiology of this disorder of inattention and/or hyperactivity-impulsivity is based on catecholamine dysfunction. Pharmacotherapy research indicates that psychostimulants, which are catecholamine agonists, ...
Hammerness Paul - - 2012
Objectives. Due to concerns about the safety of stimulants for ADHD, novel assessments of the cardiopulmonary impact of these agents are needed. Methods. An open design of lisdexamfetamine (LDX) in 15 adults with DSM-IV ADHD. Following a psychiatric evaluation and medical history, subjects underwent echocardiography (TTE) and cardiopulmonary exercise testing ...
Van der Elst Wim - - 2012
Background/Study Context: Occupational activity is associated with cognitive functioning in older age. The mental exercise hypothesis attributes this association to differences in mental exercise at work. Methods: A case-control design was used to test the mental exercise hypothesis. Primary and secondary school teachers (aged between 25.29 and 79.01 years) and ...
Julian Kristin - - 2012
Cognitive theories suggest that social anxiety is maintained, in part, by an attentional bias toward threat. Recent research shows that a single-session of attention modification training (AMP) reduces attention bias and vulnerability to a social stressor (Amir, Weber, Beard, Bomyea, & Taylor, 2008). In addition, exercise may augment the effects ...
Chang Yu-Kai - - 2012
This study was conducted to determine the effect of acute aerobic exercise on executive function in children with attention deficit hyperactivity disorder (ADHD). Forty children with ADHD were randomly assigned into exercise or control groups. Participants in the exercise group performed a moderate intensity aerobic exercise for 30 min, whereas ...
Cheung Yiu-fai - - 2012
Performance of the left ventricle during exercise stress in thalassaemia patients is uncertain. We aimed to explore the phenomenon of dynamic dyssynchrony and assess contractile reserve in patients with beta-thalassaemia major and determine their relationships with myocardial iron load. Thirty-two thalassaemia patients (16 males), aged 26.8 ± 6.9 years, without ...
Vaughan C P - - 2011
To assess the feasibility and efficacy of exercise-based behavioral therapy to treat urinary incontinence (UI) in older adults with Parkinson disease (PD). Participants with PD ≥50 years with ≥4 UI episodes on a 7-day bladder diary were recruited from movement disorders clinics. In 5 visits over 8 weeks, participants learned ...
Bartolini J Albert - - 2011
Bartolini, JA, Brown, LE, Coburn, JW, Judelson, DA, Spiering, BA, Aguirre, NW, Carney, KR, and Harris, KB. Optimal elastic cord assistance for sprinting in collegiate women soccer players. J Strength Cond Res 25(X): 000-000, 2011-Overspeed exercises are commonly integrated into a training program to help athletes perform at a speed ...
Ash Garrett I - - 2011
: The most widely studied candidate gene for endurance performance is the angiotensin-converting enzyme (ACE) gene. The best endurance runners in the world hail from Kenya and Ethiopia, so the lack of association between the ACE gene and elite endurance athlete status we previously reported in Kenyans requires replication in ...
Forsyth A L - - 2011
Summary.  In older men with haemophilia, arthropathy resulting from a lifetime of intra-articular bleeding contributes to the loss of independence and increased morbidity that occurs with age. A regular exercise programme that incorporates aerobics, strength training and balance and flexibility activities is a key component of successful ageing, helping to ...
Hudes Karen - - 2011
This case study was conducted to evaluate the treatment and management of a patient presenting with medial elbow pain diagnosed as medial epicondylosis. A 35 year old male presented with medial elbow pain of 4-6 weeks duration that worsened after playing squash. A COURSE OF FASCIAL STRIPPING TECHNIQUES WAS INITIATED, ...
Hardwick Dustin D - - 2011
In people with stroke, range-of-motion (ROM) exercises may contribute to hemiparetic shoulder pain, but the underlying mechanisms are unknown. This study examined scapular and humeral movement patterns in people with poststroke hemiparesis as they performed commonly prescribed ROM exercises. Using kinematic techniques, we studied 13 people with hemiparesis, both with ...
Chiodo S - - 2011
The aim of this study was to evaluate the effects of an official Taekwondo competition on the heart rate (HR), salivary α-amylase (sA-A), salivary free cortisol (sC), and Profile of Mood States (POMS) in 10 young male (14±0 years) and six female (13±1 years) athletes. POMS and hormones were measured ...
Rutty Guy N - - 2011
There are a number of reasons why facilitating and participating in a mass fatality exercise may be viewed as continuous professional development for those ultimately engaged in the response to a mass fatality incident. These include, amongst other objectives; team integration, organization and preparedness, psychological and emotional effects, developing attitudes ...
Lemoncello Rik - - 2010
Purpose. Effective delivery of dysphagia exercises requires intensive repetition, yet many brain injury survivors demonstrate difficulty adhering to home programmes. The Television Assisted Prompting (TAP) system provides a novel method to deliver intensive in-home therapy prompts. Specific research questions compared the effectiveness of the TAP system to typical practice on programme ...
Bojsen-Møller J - - 2010
The use of performance- and image-enhancing drugs/substances (PIED) outside elite sports appears to be increasing, although the current knowledge of the nature of PIED use among recreational athletes is scarce. The present study analyzed enquiries that were submitted to the Danish Anti Doping Agency (ADD) over an 18-month period, to ...
Castro R R T - - 2011
The present work quantifies, through principal components analysis (PCA) the relationships among the variability of breath-by-breath ventilatory parameters [minute-ventilation (VE), tidal volume (Vt), and respiratory rate (FR)] during a maximal progressive exercise test. The results show that the first and second eigenvalues of the covariant matrix contains almost 90% of ...
Eichner E Randy - - 2010
Sickle cell trait (SCT) can pose a grave risk for some athletes. In the past decade in NCAA Division I football, no deaths have occurred from the play or practice of the game, but 16 deaths have occurred from conditioning for the game, and 10 (63%) of these deaths are ...
Parsons Bradford O - - 2010
Elbow dislocation in the athletic population is not an uncommon injury. The literature does not clearly establish treatment guidelines, with treatment being extrapolated from the experience in the general population. A short period of immobilization with early range of motion exercises limits disability and allows return to sports participation within ...
Maughan R J - - 2010
Hypohydration - if sufficiently severe - adversely affects athletic performance and poses a risk to health. Strength and power events are generally less affected than endurance events, but performance in team sports that involve repeated intense efforts will be impaired. Mild hypohydration is not harmful, but many athletes begin exercise ...
Schumacher Yorck Olaf - - 2010
Reticulocytes (Ret) are a key variable in the emerging concept of the athlete's biological passport and the longitudinal monitoring of biological parameters in the field of anti-doping. In this context, knowledge on the variability of Ret in athletes and the influence of exercise is necessary. The aim of the present ...
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