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Results 351 - 400 of 1506
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Matta Mello Portugal Eduardo - - 2013
The neuroscience of exercise is a growing research area that is dedicated to furthering our understanding of the effects that exercise has on mental health and athletic performance. The present study examined three specific topics: (1) the relationship between exercise and mental disorders (e.g. major depressive disorder, dementia and Parkinson's ...
Xie Xinzhou - - 2013
Tortuous coronary arteries are commonly observed but the etiology and clinical importance are still unclear. Hemodynamic factors are vital modulators of the vascular structure and a full understanding of hemodynamic changes caused by the coronary tortuosity (CT) is meaningful for clinical researches. A three-dimensional computational fluid dynamic study was conducted ...
Suzuki Kengo - - 2013
BACKGROUND: Early detection of pulmonary arterial hypertension (PAH) is indispensable, although, echocardiography at rest alone does not provide sufficient evidence for it. Here, this study aimed to investigate the usefulness of simple exercise echocardiography using a Master's two-step test for detecting early PAH. METHODS: This study included 52 connective tissue ...
Madden Dennis - - 2013
Arterialization of venous gas emboli (VGE) after decompression from scuba diving has traditionally been associated with pulmonary barotraumas or cardiac defects such as the patent foramen ovale (PFO). Recent studies have demonstrated the right to left passage of emboli through intra-pulmonary arterial-venous anasthomoses (IPAVA) that allow blood to bypass the ...
Strahler Jana - - 2013
Chronic fatigue syndrome (CFS) is characterized by fatigue lasting 6 months or longer. CFS has been associated with a disturbed (re-)activity of the autonomic nervous system. However, the sympathetic adrenomedulla (SAM) remains under-examined in CFS. To investigate SAM reactivity, we implemented a submaximal cycle ergometry (ERGO) and a pharmacological test ...
Williams Cameron B - - 2013
The purpose of this study was to investigate the acute effects of endurance exercise (END; 65% V̇O2peak for 60 min) and high-intensity interval exercise (HIE; four 30 s Wingates separated by 4.5 min of active rest) on cardiorespiratory, hormonal, and subjective appetite measures that may account for the previously reported ...
Galizia Gianluigi - - 2013
OBJECTIVES: To assess the efficacy of a leg exercise performed in supine position to prevent orthostatic hypotension (OH) in older adults. DESIGN: Case-control study. SETTING: Division of Physical Medicine and Rehabilitation, Salvatore Maugeri Foundation, Scientific Institute of Veruno, Veruno, Italy. PARTICIPANTS: Individuals aged 65 and older admitted with degenerative joint ...
Ciucci Michelle R MR Department of Surgery-Division of Otolaryngology Head and Neck Surgery, 1975 Willow Drive, Madison, WI 53705, USA. - - 2013
Unilateral lesions to the medial forebrain bundle with 6-hydroxydopamine (6-OHDA) lead to force and timing deficits during a complex licking task. We hypothesized that training targeting tongue force generation during licking would improve timing and force measures and also lead to striatal dopamine sparing. Nine month-old male Fisher344/Brown Norway rats ...
Loenneke Jeremy P - - 2013
Hypertension is a risk factor for heart disease, and chronic exercise is recognized as a method for reducing resting blood pressure. Recent studies report that while exercise may benefit the majority of the population, the blood pressure adaptation is not always uniform; some individuals have an adverse blood pressure response ...
Duppen N - - 2013
BACKGROUND: Most patients with congenital heart disease (ConHD) do not perform regular physical exercise. Consensus reports have stated that exercise should be encouraged and regularly performed in these patients, but this is not common practise. We reviewed the literature on actual evidence for either negative or positive effects of physical ...
Horne Maria - - 2013
The importance of increasing exercise to prevent falls among older adults remains a key worldwide public health priority. However, older adults do not necessarily take up exercise as a preventative measure for falls. This qualitative study aimed to explore the beliefs of community-dwelling South Asian and White British older adults ...
Edmonds R C - - 2013
The aim of this study was to examine the influence of weekly training including a competitive game on heart rate (HR) variability (HRV). Youth players (n=9, age 17-20 years) were monitored during daily supine rest (10 min) and standing (8 min), 5 times over 8 days. Heart rate recordings were ...
Beck Darren T - - 2013
BACKGROUND: Large artery stiffness is a major risk factor for the development of hypertension and cardiovascular disease. Persistent prehypertension accelerates the progression of arterial stiffness. METHODS: Forty-three unmedicated prehypertensive (systolic blood pressure (SBP) = 120-139mm Hg or diastolic blood pressure (DBP) = 80-89mm Hg) men and women and 15 normotensive ...
Bates Matthew G D - - 2013
BACKGROUND: Cardiac hypertrophic remodelling and systolic dysfunction are common in patients with mitochondrial disease and independent predictors of morbidity and early mortality. Endurance exercise training improves symptoms and skeletal muscle function, yet cardiac adaptations are unknown. METHODS AND RESULTS: Before and after 16-weeks of training, exercise capacity, cardiac magnetic resonance ...
Ntanasis-Stathopoulos J - - 2013
It is well established that physical exercise modulates the function of many physiological systems, such as the musculoskeletal, the cardiovascular and the nervous system, by inducing various adaptations to the increased mechanical load and/or metabolic stress of exercise. Many of these changes occur through epigenetic alterations to DNA, such as ...
Beijer A - - 2013
Objectives: A training intervention comparing resistance exercise with or without whole-body vibration (WBV) was conducted to compare acute and chronic effects on functional and molecular parameters. Methods: A six-week training intervention was performed including 26 healthy males (26 years, SD=4). Two groups were analyzed in a parallel design performing either ...
Hogan Candice L - - 2013
Physical activity is associated with improved affective experience and enhanced cognitive processing. Potential age differences in the degree of benefit, however, are poorly understood because most studies examine either younger or older adults. The present study examined age differences in cognitive performance and affective experience immediately following a single bout ...
Kim Young Joo - - 2013
The aim of this study is to exam the effects of exercise modes on the systolic blood pressure and rate-pressure product during a gradually increasing exercise load from low to high intensity. Fifteen apparently healthy men aged 19 to 23 performed the graded exercise tests on cycle ergometer (CE) and ...
Santos Francisco V - - 2013
Interferential electrical stimulation (IES), which may be linked to greater penetration of deep tissue, may restore blood flow by sympathetic nervous modulation; however, studies have found no association between the frequency and duration of the application and blood flow. We hypothesized that 30 min of IES applied to the ganglion ...
Huq Rajibul - - 2013
This paper presents preliminary studies in developing a fuzzy logic based intelligent system for autonomous post-stroke upper-limb rehabilitation exercise. The intelligent system autonomously varies control parameters to generate different haptic effects on the robotic device. The robotic device is able to apply both resistive and assistive forces for guiding the ...
Levinson Cheri A - - 2013
In two studies (N = 416; N = 118) examining responses from undergraduates, we developed the Social Exercise and Anxiety Measure (SEAM) and tested its factorial, convergent, and divergent validity. Our results demonstrate that the SEAM exhibits an excellent three factor structure consisting of the following subscales: Social Exercise Self-efficacy, ...
Illes Jennifer D JD Clinical Science Instructor, National University of Health Sciences, Pinellas Park, - - 2013
The purpose of this case report is to describe chiropractic management of a patient with arm and hand numbness and who was suspected to have ulnar nerve compression. A 41-year-old woman presented with hand weakness and numbness along the medial aspect of her right forearm and the 3 most medial ...
Cho Misuk M Department of Physical Therapy, Korea Nazarene - - 2013
[Purpose] The purpose of this study was to compare the effects of bridge exercises applying the abdominal drawing-in method and modified wall squat exercises on deep abdominal muscle thickness and lumbar stability. [Subjects] A total of 30 subjects were equally divided into an experimental group and a control group. [Methods] ...
Parsaik Ajay K AK Department of Neurology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, - - 2013
Chronic symptoms of orthostatic intolerance occur in postural tachycardia syndrome (POTS) and patients with orthostatic intolerance (OI) without tachycardia. We recently reported that deconditioning is almost universal in both patient groups. In this study, we focussed on the question of how much dysautonomia, besides orthostatic tachycardia, is there in POTS ...
Klompstra Leonie Verheijden LV Department of Social and Welfare Studies, Faculty of Health Science, Linköping University, 601 74 Norrköping, Sweden. - - 2013
To explore the influence of the Nintendo Wii on the daily physical activity of a patient with chronic heart failure at home. A 74-year-old Swedish patient with heart failure had access to a Nintendo Wii at home for 12 weeks. Exercise motivation, exercise self-efficacy and exercise capacity were assessed before ...
da Silva Roberto P - - 2013
BACKGROUND: Bariatric surgery is the only predictable method to obtain weight loss in severe obesity. Poor physical performance of obese individuals may be mediated by the peripheral metaboreflex, which controls blood flow redistribution to exercising muscles. Weight reduction improves exercise capacity through several possible mechanisms that are insufficiently understood. We ...
Faulkner J - - 2013
This study assessed the effect of a short-term, 8-week exercise programme on resting and exercise blood pressure (systolic (SBP); diastolic (DBP)), and other haemodynamic responses (heart rate (HR), pulse pressure (PP), double product (DP)), of newly diagnosed transient ischaemic attack (TIA) patients. Sixty-eight TIA patients completed a continuous and incremental ...
Schultz Martin G MG Menzies Research Institute Tasmania, University of Tasmania, Private Bag 23, Hobart 7000, - - 2013
Exercise hypertension independently predicts cardiovascular mortality, although little is known about exercise central hemodynamics. This study aimed to determine the contribution of arterial wave travel and aortic reservoir characteristics to central blood pressure (BP) during exercise. We hypothesized that exercise central BP would be principally related to forward wave travel ...
Ramponi Sara - - 2013
Background: Pulmonary rehabilitation (PR) has emerged as a recommended standard of care in symptomatic COPD. Objectives: We now studied whether PR may affect cardiovascular response to exercise in these patients. Methods: Twenty-seven patients (9 females aged 69 ± 8 years) with moderate-to-severe airflow obstruction admitted to a 9-week PR course ...
Raimundo Rodrigo Daminello - - 2013
Stroke has been associated with cardiac autonomic impairment due to damage in central nervous system. Dysfunction in heart rate variability (HRV) may reflect dysfunction of the autonomic nervous system. Aerobic training has been used in the rehabilitation procedure of patients, due to improvement of aerobic function and other beneficial effects ...
Smith Anne-Louise - - 2013
Heart rate variability (HRV) analysis over shorter periods may be useful for monitoring dynamic changes in autonomic nervous system activity where steady-state conditions are not maintained (e.g. during drug administration, or the start or end of exercise). This study undertakes a validation of 70 HRV indices that have previously been ...
Barrera-Ramirez Juliana - - 2013
To better understand the alterations in cardiorespiratory variability during exercise, the present study characterized the patterns of change in heart rate variability (HRV), respiratory rate variability (RRV), and combined cardiorespiratory variability (HRV-RRV) during an intermittent incremental submaximal exercise model. Six males and six females completed a submaximal exercise protocol consisting ...
Camargo Laura H A - - 2013
Dynamic exercise evokes sustained cardiovascular responses, which are characterized by arterial pressure and heart rate increases. Although it is well accepted that there is central nervous system mediation of cardiovascular adjustments during exercise, information on the role of neural pathways and signaling mechanisms is limited. It has been reported that ...
Holland Anne E - - 2013
BACKGROUND: Reduced chronotropic response to maximal exercise has been associated with poor survival in people without respiratory disease. The contribution of chronotropic response to exercise limitation and survival in interstitial lung disease (ILD) is not well defined. This study investigated the relationships between chronotropic response during 6-min walk test, exercise ...
Heinonen Ilkka I Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland. - - 2013
The role of neuronal regulation of human cardiovascular function remains incompletely elucidated, especially during exercise. Here we, by positron emission tomography, monitored tissue-specific blood flow (BF) changes in nine healthy young men during femoral arterial infusions of norepinephrine (NE) and phentolamine. At rest, the α-adrenoceptor agonist NE reduced BF by ...
Molina Guilherme E GE Cardiovascular Laboratory, Clinical Medicine Area, Faculty of Medicine, University of Brasilia, 70910-900 Brasilia, DF, Brazil. - - 2013
To test whether elite mountain bikers display a cardiac autonomic modulation pattern that is distinctive from that of active non-athletes. The relationship between autonomic adaptation and bradycardia during physical exercise, including high-performance sports such as the mountain biking, remains to be elucidated. Twelve elite mountain bikers and 11 matched non-athletes ...
Flynn Jamie R JR School of Biomedical Sciences and Pharmacy, University of Newcastle, New South Wales, - - 2013
Following spinal cord injury (SCI), anatomical changes such as axonal sprouting occur within weeks in the vicinity of the injury. Exercise training enhances axon sprouting; however, the exact mechanisms that mediate exercised-induced plasticity are unknown. We studied the effects of exercise training after SCI on the intrinsic and synaptic properties ...
Le Meur Yann - - 2013
Purpose: We analyzed heart rate variability (HRV) to detect alterations in autonomic function that may be associated with functional overreaching (F-OR) in endurance athletes.Methods: Twenty one trained male triathletes were randomly assigned to either intensified training (n=13) or normal training (n=8) groups during 5 weeks. HRV measures were taken daily ...
De Santi Giovani Luiz - - 2013
Chronic aortic regurgitation (AR) is a valvulopathy of slow and insidious evolution, and patients may remain asymptomatic for a long period of time. Exercise-induced systolic dysfunction occurs during the natural history of chronic AR and is related to changes in both preload and afterload. We describe the case of a ...
Zorzi Alessandro - - 2013
Negative T waves (NTWs) in right precordial leads (V1 to V3) may be observed on the electrocardiogram (ECG) of healthy subjects but can also represent the hallmark of an underlying arrhythmogenic right ventricular cardiomyopathy (ARVC). It has been a consistent observation that NTWs usually become upright with exercise in healthy ...
Grant Catharina C - - 2013
INTRODUCTION: The quantification of heart rate variability (HRV) is a tool to assess the interaction between exercise and autonomic control, as well as the pathophysiology of diseases affecting autonomic function. Little is known about the influence of genetically influenced physiology on exercise-induced changes in autonomic cardiac regulation. It was theorised ...
Tesch Per A - - 2013
Astronauts are required to perform both resistance and aerobic exercise while in orbit. This study assessed the aerobic energy yield and related physiological measurements using a nongravity dependent flywheel device designed for both resistance and aerobic exercise (RAD) in space. Eight physically active men and women performed all-out rowing on ...
Andrade Lima Aluísio H R - - 2013
To analyze the effect of a single bout of resistance exercise on cardiac autonomic modulation in patients with peripheral artery disease. Fifteen patients with peripheral artery disease (age: 58.3±4.0 years) underwent the following sessions in a random order: resistance exercise (three sets of 10 repetitions of the six resistance exercises ...
Pourmoghaddas Ali - - 2013
Diabetes mellitus (DM) has a lot of complications such as macrovessel and microvessel disease. Another complication of DM is cardiac autonomic neuropathy (CAN), which have effect on automatic nervous system of heart. Failure in heart rate slowing after exercise is a presentation of this abnormality. We selected diabetic patients and ...
Sinha Anant Narayan - - 2013
Background and Aim: Pranayama, the art of breath control, is considered to be the heart of yogic exercises. The present study was performed with the aim of evaluating the effect of Pranayama/Alternate Nostril Breathing (A.N.B.) on the parasympathetic nervous system in healthy young adult males. Methods: A comparative account of ...
Turankar A V - - 2013
Background & objectives: Regular practice of slow breathing has been shown to improve cardiovascular and respiratory functions and to decrease the effects of stress. This pilot study was planned to evaluate the short term effects of pranayama on cardiovascular functions, pulmonary functions and galvanic skin resistance (GSR) which mirrors sympathetic ...
Lee Myoung-Hyo MH Department of Physical Therapy, Graduate school of Physical Therapy, Daegu - - 2013
[Purpose] This study examined the effects of deep flexor muscle-strengthening exercise on the neck-shoulder posture, and the strength and endurance of the deep flexor muscles of high-school students. [Subjects] The subjects were 30 seventeen-year-old female high-school students who complained about bad posture and chronic neck-shoulder pain. They were randomly divided ...
Alex Christian - - 2013
ObjectiveExercise has widely documented cardioprotective effects, but the mechanisms underlying these effects are not entirely known. Previously, we demonstrated that aerobic but not strength training lowered resting heart rate and increased cardiac vagal regulation, changes that were reversed by sedentary deconditioning. Here, we focus on the sympathetic nervous system and ...
Watts Christopher R - - 2013
OBJECTIVE: To investigate the effects of a resistance-based chin-to-chest exercise on measures of hyolaryngeal muscle activation compared to a head-lift exercise. DESIGN: Within-subject repeated measures design. SETTING: Academic research laboratory. PARTICIPANTS: Normal young females (N=20) without history of dysphagia, cervical spine conditions, neurological disease, or head/neck cancer (mean age = ...
Medford Heidi M HM Graduate Program in Nutrition and Exercise Physiology, College of Pharmacy, Washington State University, Spokane, WA 99210, - - 2013
Cardiac hypertrophy induced by pathological stimuli is regulated by a complex formed by the repressor element 1-silencing transcription factor (REST) and its corepressor mSin3A. We previously reported that hypertrophic signaling is blunted by O-linked attachment of β-N-acetylglucosamine (O-GlcNAc) to proteins. Regular exercise induces a physiological hypertrophic phenotype in the heart ...
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