Search Results
Results 151 - 200 of 738
1 2 3 4 5 6 7 8 9 10 >
Murray-Rust Peter - - 2012
The articles in this special issue arise from a workshop and symposium held in January 2012 (Semantic Physical Science'). We invited people who shared our vision for the potential of the web to support chemical and related subjects. Other than the initial invitations, we have not exercised any control over ...
Faulkner James - - 2012
To assess the feasibility of recruiting and retaining patients newly diagnosed with a Transient Ischaemic Attack (TIA) into an 8-week exercise programme. The study was a single-centre, randomised-controlled trial. TIA was confirmed by a specialist stroke physician within 7 days of symptom onset. Following baseline assessment, participants were randomised to ...
Kerwin Maureen - - 2012
Falling is a serious danger to older adults that is usually only addressed after a person has fallen, when doctors administer clinical tests to determine the patient´s risk of falling again. Having the technological capability of performing fall risk assessment tests with a smartphone, the authors set out to design ...
Iglesias-Gutiérrez Eduardo - - 2012
Considering that hyperhomocysteinemia is an independent risk factor for cardiovascular disease, the purpose of this study was to determine the kinetics of serum homocysteine (tHcy) and the vitamins involved in its metabolism (folates, B(12), and B(6)) in response to acute exercise at different intensities. Eight sedentary males (18-27 yr) took ...
Zwiers R - - 2012
To assess the mortality risk in subsequent years (adjusted for year of birth, nationality, and sex) of former Olympic athletes from disciplines with different levels of exercise intensity. Retrospective cohort study. Former Olympic athletes. 9889 athletes (with a known age at death) who participated in the Olympic Games between 1896 ...
Daley Amanda J - - 2012
Postnatal depression can have a substantial impact on the woman, the child and family as a whole. Thus, there is a need to examine different ways of helping women experiencing postnatal depression; encouraging them to exercise may be one way. A meta analysis found some support for exercise as an ...
Tew Garry A - - 2012
London 2012 is the first Olympic and Paralympic Games to explicitly try and develop socioeconomic legacies for which success indicators are specified - the highest profile of which was to deliver a health legacy by getting two million more people more active by 2012. This editorial highlights how specialists in ...
Peart Tasha - - 2012
Obesity is a serious health threat, particularly among racial/ethnic minorities and those who are uninsured, yet little is known about the implementation of nutrition or exercise counseling or the combination of both among these groups. Trends in counseling by race/ethnicity and types of insurance were examined. Trend analyses were conducted ...
Rhodes Jonathan - - 2011
The primary task of the cardiopulmonary system is to provide blood flow and oxygen in quantities sufficient to support the individual's metabolic needs. The cardiopulmonary system is maximally stressed when an individual's metabolic rate is increased, a condition that occurs most commonly during physical activity or exercise. Cardiopulmonary exercise testing ...
Hung Ming-Yow - - 2011
Coronary vasospasm of the left main coronary artery (LMCA) is a rare condition with potentially devastating consequences. We present 2 patients with LMCA vasospasm-related angina, the first being a 46-year-old woman and the second a 51-year-old woman. Both of them developed ST-segment ischemic changes on treadmill exercise tests. Coronary angiography ...
Amann Markus M University of Utah, Department of Medicine, Salt Lake City, UT, USA. - - 2012
Accumulating evidence over the past 25 years depicts the healthy pulmonary system as a limiting factor of whole-body endurance exercise performance. This brief overview emphasizes three respiratory system-related mechanisms which impair O(2) transport to the locomotor musculature [arterial O(2) content (C(aO(2))) × leg blood flow (Q(L))], i.e. the key determinant ...
Komar-Samardzija Melanie - - 2012
Abstract  Purpose: To examine how family/friend social support, exercise self-efficacy, physical environment, sense of community, social issues and roles, socioeconomic status, and body image discrepancy influence physical activity levels in African American females with type 2 diabetes. Data sources: A sample of 50 African American females with type 2 diabetes ...
Feuerecker M - - 2011
The effects of physical exercise stress on the endocannabinoid system in humans are almost unexplored. In this prospective study, we investigated in a crossover design and under field conditions at different altitudes the effects of physical exercise on the endocannabinoid system (ECS) in 12 trained healthy volunteers. For determination of ...
Phillips A A - - 2011
We aimed to compare the Finapres system, which is designed for accurate intra-arterial amplitude measurement, to the Caretaker system, which is designed for temporal accuracy of intra-arterial measurement, in regard to measurement of pulse transit time (PTT) at baseline and following an endurance exercise session. Pulse transit time was evaluated ...
Macfarlane D J - - 2012
This study investigated the performance of the portable Cortex Metamax 3B (MM3B) automated gas analysis system during both simulated and human exercise using adolescents. Repeated measures using a Gas Exchange System Validator (GESV) across a range of simulated metabolic rates, showed the MM3B to be adequately reliable (both percentage errors, ...
David Prabu P Edward R Murrow College of Communication, Washington State University, Pullman, Washington 99164-2520, USA. - - 2012
We conducted a feasibility study of a 12-week walking intervention administered through an Interactive Voice Response (IVR) system and mobile phones. We also examined the added benefit of a human coach. Post-menopausal women (n = 71) were given a daily-steps goal, which they monitored using a pedometer. Each day, they ...
Okutucu Sercan - - 2011
The autonomic nervous system (ANS) and cardiovascular function are intricately and closely related. One of the most frequently used diagnostic and prognostic tools for evaluating cardiovascular function is the exercise stress test. Exercise is associated with increased sympathetic and decreased parasympathetic activity and the period of recovery after maximum exercise ...
Bizheh Nahid - - 2011
Homocysteine, hs-CRP and fibrinogen are three novel cardiovascular risk factors. The aim of this study was to examine the effect of a single bout of circuit resistance exercise on homocysteine, hs-CRP and fibrinogen levels in healthy and inactive men. The subjects were randomly divided into the experimental group (n= 14) ...
Segerståhl Katarina - - 2011
PURPOSE: Various personal monitoring technologies have been introduced for supporting regular physical activity, which is of critical importance in reducing the risks of several chronic diseases. Recent studies suggest that combining multiple modes of delivery, such as text messages and mobile monitoring devices with web applications, holds potential for effectively ...
Simpson Lisa A - - 2011
BACKGROUND/AIMS: People with stroke continue to lead sedentary lives despite the multiple benefits of exercise. Knowledge regarding stroke survivors' conception of exercise, which is essential for a thorough understanding of the barriers and facilitators to exercise, is lacking. This study aims to explore the perceptions of exercise among stroke survivors, ...
Martins-Pinge M C - - 2011
The autonomic nervous system plays a key role in maintaining homeostasis under normal and pathological conditions. The sympathetic tone, particularly for the cardiovascular system, is generated by sympathetic discharges originating in specific areas of the brainstem. Aerobic exercise training promotes several cardiovascular adjustments that are influenced by the central areas ...
Brandon Raphael - - 2011
Abstract An analysis system for barbell weightlifting exercises is proposed to record reliable performance and neuromuscular responses. The system consists of surface electromyography (sEMG) synchronized with electrogoniometry and a barbell position transducer. The purpose of this study was to establish the reliability of the three components of the system. Nine ...
Nguyen Tuan Nghia - - 2011
The paper proposes a robust online adaptive neural network control scheme for an automated treadmill system. The proposed control scheme is based on Feedback-Error Learning Approach (FELA), by using which the plant Jacobian calculation problem is avoided. Modification of the learning algorithm is proposed to solve the overtraining issue, guaranteeing ...
Honka Anita M - - 2011
Regular aerobic exercise is a recommended treatment for elevated blood pressure (BP). However, making permanent lifestyle changes is not easy. Having personally relevant information about the treatment, about its effects and importance, is a precondition for motivation. Thus, the first step towards a successful lifestyle change is appropriate education. This ...
Lee Hsu-En - - 2011
Cardiovascular diseases are the most popular cause of death in the world recently. For postoperatives, cardiac rehabilitation is still asked to maintain at home (phase II) to improve cardiac function. However, only one third of outpatients do the exercise regularly, reflecting the difficulty for home-based healthcare: lacking of monitoring and ...
Ottaviano M - - 2011
This paper describes the design and development of a system for cardio rehabilitation of patients that suffered a myocardial infarction. The proposed solution focuses on exercise prescriptions and the encouragement of healthy behaviors. The innovative strategy of the design takes into account health promotion models to provide safe, assistive exercise ...
Fragala Maren S - - 2011
This article reviews the interaction between the neuroendocrine and immune systems in response to exercise stress, considering gender differences. The body's response to exercise stress is a system-wide effort coordinated by the integration between the immune and the neuroendocrine systems. Although considered distinct systems, increasing evidence supports the close communication ...
Campos Fábio Angioluci Diniz - - 2011
The purpose of this study was to investigate energy system contributions and energy costs in combat situations. The sample consisted of 10 male taekwondo athletes (age: 21 ± 6 years old; height: 176.2 ± 5.3 cm; body mass: 67.2 ± 8.9 kg) who compete at the national or international level. To estimate the energy contributions, and total energy cost ...
Sharma Helen - - 2012
To explore stroke survivors' experiences of undertaking exercise in the context of an exercise referral scheme for people with chronic stroke. A qualitative design, using semi-structured interviews within a constructivist framework to explore the experiences of individual participants. Verbatim transcripts were thematically analysed. Rigour mechanisms included respondent validation, peer checking, ...
Harley Jamie A - - 2011
Harley, JA, Lovell, RJ, Barnes, CA, Portas, MD, and Weston, M. The interchangeability of GPS and semiautomated video-based performance data during elite soccer match play. J Strength Cond Res 24(X): 000-000, 2011-In elite-level soccer, player motion characteristics are commonly generated from match play and training situations using semiautomated video analysis ...
Sun Yu - - 2011
With the advance of computer and photonics technology, imaging photoplethysmography [(PPG), iPPG] can provide comfortable and comprehensive assessment over a wide range of anatomical locations. However, motion artifact is a major drawback in current iPPG systems, particularly in the context of clinical assessment. To overcome this issue, a new artifact-reduction ...
Gavrilovic Ljubica - - 2011
The sympatho-adrenal system represents one of the main systems involved in the response to stressful events because its stress-induced activation results in an increased release of catecholamines. Exercise training acts as an important modulator of sympatho-adrenal system, adrenal medulla and stellate ganglia being two components of this system. This study ...
Balsamo Sandor - - 2011
Systemic lupus erythematosus (SLE) is an autoimmune disease that is characterized by fatigue; however, little research has been performed to identify non-pharmacological strategies, such as physical exercise, that can be employed in the prevention and treatment of fatigue in patients with SLE. Moreover, it is not clear whether physical fitness ...
Serrano-Ostáriz E - - 2011
Numerous studies have observed cardiac biomarker release with prolonged exercise. Despite this, we are unsure as to the constituent aspects of any given exercise bout that may be important in promoting cardiac biomarker release. This study examined the influence of exercise duration and intensity on the appearance of cardiac biomarkers. ...
Winward Charlie C Movement Science Group, School of Life Sciences, Oxford Brookes University, Headington, Oxford, UK. - - 2011
Patients with long-term neurological conditions often have low levels of physical activity and participation in exercise. Exercise referral schemes have been introduced in the UK to encourage physical activity in sedentary and clinical populations but typically exclude patients with long-term neurological conditions. We have developed and evaluated an exercise support ...
Jeukendrup Asker E - - 2011
Carbohydrate feeding has been shown to enhance endurance performance. During exercise of 2 h or more, the delivery of carbohydrates to the muscle is the crucial step and appears to be limited by intestinal absorption. It is therefore important to identify ways to overcome this limitation and study the positive ...
Kan Patricia - - 2011
Stroke is the primary cause of adult disability. To support this large population in recovery, robotic technologies are being developed to assist in the delivery of rehabilitation. This paper presents an automated system for a rehabilitation robotic device that guides stroke patients through an upper-limb reaching task. The system uses ...
Kim Se-Hong SH Department of Family - - 2011
Metabolic syndrome is associated with an increased risk of cognitive impairment. The purpose of this prospective pilot study was to examine the effects of dance exercise on cognitive function in elderly patients with metabolic syndrome. The participants included 38 elderly metabolic syndrome patients with normal cognitive function (26 exercise group ...
Ramseyer A - - 2010
The ability to obtain breath-by-breath measures of ventilatory mechanics for the entirety of an exercise test, regardless of speed(s) or duration enables evaluations of equine ventilation during exercise that are necessary for assessments of performance. Evaluation of a new ergospirometer (Quadflow; QF) system's accuracy and repeatability for measuring pulmonary variables ...
Krogh Jesper - - 2011
The dysfunction of hypothalamic-pituitary-adrenal (HPA) axis in major depression includes hyperactivity and reduced feedback inhibition. Atrial natriuretic peptide (ANP) is able to reduce the HPA-axis response to stress and has an anxiolytic effect in rodents and humans. We hypothesized that patients with depression would have an attenuated N-terminal proANP (NT-proANP) ...
Fontana Marianna - - 2012
Cardiopulmonary exercise test (CPT) has a prominent value in assessing clinical severity in chronic heart failure (HF) patients. Reduced free triiodothyronine (fT3) plasma level is associated with a more severe disease and prognosis. The aim of this study was to evaluate the relationship between low fT3 plasma level and reduced ...
Wozakowska-Kaplon Beata - - 2010
Measurement of natriuretic peptide's (NP) release in response to hemodynamic stress may be complementary to its baseline assessment in individuals. Atrial natriuretic peptide (ANP) and B-type natriuretic peptide (BNP) increase in patients with atrial fibrillation (AF) and decrease after successful cardioversion, suggesting that AF may stimulate secretion of NPs. However, ...
Wisén Anita G M - - 2011
Increased levels of atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) have been shown to reduce the hormones in the HPA axis. In this study we addressed the question whether patients with unmedicated major depressive disorder (MDD) might have altered baseline levels of these natriuretic peptides and an altered ...
Munk Peter Scott - - 2011
Abstract Background. Growth differentiation factor-15 (GDF-15) is considered to be a cardioprotective cytokine possessing antiapoptotic and antiproliferative properties. If GDF-15 plasma levels are influenced by percutanenous coronary intervention (PCI) or regular exercise training is currently not known. Methods. After successful revascularization by PCI with stent implantation 36 consecutive patients with ...
Mandroukas Athanasios - - 2011
The aim of this study was to examine and to compare alterations in the secretion of atrial natriuretic peptide (ANP) during different exercise-testing protocols in moderately trained men. Fifteen healthy male physical education students were studied (mean age 22·3 ± 2·5 years, training experience 12·3 ± 2·5 years, height 1·80 ± 0·06 m, weight 77·4 ± 8·2 kg). Participants performed an initial ...
Kilickesmez Kadriye Orta - - 2011
Introduction: To determine whether elevated N-terminal pro-BNP (NT pro-BNP) predicts pulmonary artery systolic pressure increase on exercise stress echocardiography in asymptomatic or mildly symptomatic patients with moderate to severe mitral stenosis. Methods and Results: Forty-one asymptomatic or mildly symptomatic patients with moderate to severe mitral stenosis and 21 age- and ...
Nilsson Birgitta Blakstad - - 2010
OBJECTIVES: Exercise training might improve cardiac function as well as functional capacity in patients with chronic heart failure (CHF). N-terminal pro-B-type natriuretic peptide (NT pro-BNP), is associated with the severity of the disease, and has been reported to be an independent predictor of outcome in CHF. We evaluated the effect ...
El-Mallakh Rif S - - 2010
Ill phases of bipolar illness are associated with abnormalities in ion regulation and intracellular ion concentrations. Previously, it has been reported that mania is characterised by lower circulating levels of ion regulating endogenous cardenolides, and that bipolar subjects lack the normal seasonal variation of these factors. Since endogenous cardenolides are ...
Banfi Giuseppe - - 2010
The 76 amino acid N-terminal proB-type natriuretic peptide (NT-proBNP) is proposed for evaluating and monitoring heart pathologies characterized by myocardial wall stress. Strenuous exercise might generate transitory ischemia, myocardial stress, and diastolic left ventricular dysfunction, possibly inducing an increase of some biochemical parameter concentrations. An alert has been claimed owing ...
Lee Jae Eun - - 2010
The correlation between brain natruretic peptide (BNP) level and cardiac autonomic function has been studied in type 2 diabetic patients. However, there is limited data from patients with normal systolic function. We evaluated the association between heart rate recovery (HRR) representing autonomic dysfunction and three plasma BNP levels: pre-exercise, post-exercise, ...
1 2 3 4 5 6 7 8 9 10 >