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Results 101 - 150 of 1375
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El-Khoury Fabienne - - 2013
To determine whether, and to what extent, fall prevention exercise interventions for older community dwelling people are effective in preventing different types of fall related injuries. Electronic databases (PubMed, the Cochrane Library, Embase, and CINAHL) and reference lists of included studies and relevant reviews from inception to July 2013. Randomised ...
Pratt Daniel - - 2013
This study investigated differences in average [Formula: see text] of maximal effort interval running to maximal effort constant rate running at lactate threshold matched for time. The average [Formula: see text] and distance covered of 10 recreational male runners ([Formula: see text]: 4158 ± 390 mL·min(-1)) were compared between a maximal ...
San Millán Iñigo I University of Colorado School of Medicine, Aurora, CO, - - 2013
The purpose of this paper was to assess the feasibility of Micro-Mobile Compression® (MMC) on lactate clearance following exhaustive exercise and on subsequent exercise performance. Elite male cyclists were randomized to MMC (n = 8) or passive recovery (control, n = 8). MMC is incorporated into a sandal that intermittently ...
Barbosa Neto Octávio - - 2013
Experiments were performed to determine the influence of exercise training by swimming on cardiovascular autonomic control and renal morphology in spontaneously hypertensive rats (SHR) and Wystar-Kyoto (WKY) rats. Sedentary normotensive (SN), trained normotensive (TN), sedentary hypertensive (SH), and trained hypertensive (TH) rats were included in this study. Arterial pressure (AP), ...
Weatherholt Alyssa - - 2012
Although KAATSU training involves low training loads, high perceived exertion and pain scores suggest that potential benefits may be offset by poor adherence or tolerance, particularly if applied in untrained or clinical populations. PURPOSE: The purpose of this study was to investigate muscle adaptations, perceived exertion ratings, perceived sensations, and ...
Holland Anne E - - 2012
BACKGROUND AND OBJECTIVE: In 2008, a Consensus Statement was published with the aim of optimising physiotherapy management for people with cystic fibrosis (CF) in Australia. The aim of this study was to measure knowledge and acceptance of the Consensus Statement recommendations. METHODS: All physiotherapists providing treatment to people with CF ...
Lalande Sophie - - 2013
It has been reported that metabolic syndrome (MetS) impairs left ventricular (LV) diastolic function. The objective of this study was to determine whether exercise training can improve LV diastolic function in individuals with MetS. Twenty-eight individuals with MetS (9 males, aged 60 ± 5 years) underwent a 1-year combined endurance ...
Ito Daisuke - - 2012
Exercise training is known to produce antihypertensive effects in humans and animals with hypertension, and has renal protective effects in animal models of hypertension and chronic renal failure. However, the mechanisms regulating these effects of exercise training remain unclear The present study examined the effects of exercise training on nitric ...
Kumagai K - - 2012
Previous studies reported that aerobic-type exercise such as walking or cycling with blood flow restriction (BFR) has been shown to elicit increases in leg muscle hypertrophy and strength, as well as improved aerobic capacity. Although previous studies investigated cardiovascular responses during a relatively short duration of exercise (∼5 min), the ...
Pollak Amy W AW Department of Medicine, University of Virginia Health System, Charlottesville, Virginia 22908, - - 2012
This study hypothesized that arterial spin labeling (ASL) magnetic resonance (MR) imaging at 3-T would be a reliable noncontrast technique for measuring peak exercise calf muscle blood flow in both healthy volunteers and patients with peripheral arterial disease (PAD) and will discriminate between these groups. Prior work demonstrated the utility ...
Hirai M - - 2012
OBJECTIVES: Exercise of the leg with external limb compression has been reported to be useful for preventing and reducing leg oedema. The aim of this study was to investigate the effects of leg gaiters on calf muscle pump activity. METHODS: Continuous measurements of the interface pressure at the leg during ...
Foucquier A - - 2012
It has recently been shown that the acinus can have a reduced efficiency due to a "screening effect" governed by the ratio of oxygen diffusivity to membrane permeability, the gas flow velocity, as well as the size and configuration of the acinus. We present here a top to bottom calculation ...
Snoer Martin - - 2012
AIMS: In heart failure, a reduced exercise capacity is the prevailing symptom and an important prognostic marker of future outcome. The purpose of the study was to assess the relation of coronary flow reserve (CFR) to diastolic and systolic function in heart failure and to determine which are the limiting ...
Vieira Paulo J C - - 2012
ABSTRACT: Exercise with blood flow restriction promotes significant improvements and has been considered an attractive exercise strategy, especially for older individuals. However, the acute cardiovascular responses to resistance exercise with blood flow restricted (BFR) are not fully known. The purpose of this study was to evaluate the hemodynamic responses during ...
Kouidi Evangelia - - 2012
BackgroundThere are conflicting data regarding the effects of renal transplantation (RT) on uraemic autonomic dysfunction. Moreover, no study has examined the impact of physical training on the cardiac autonomic function in RT patients. Thus, we studied the effects of exercise training on heart rate variability (HRV) and arterial baroreflex sensitivity ...
Bergstrom Haley C - - 2012
Abstract The purpose of the present study was to examine oxygen consumption rate ([Vdot][Formula: see text]), heart rate (HR), and ratings of perceived exertion (RPE) responses, as well as time to exhaustion (T(lim)) values during continuous rides at critical power (CP) determined from the 3-min all-out test. Eighteen participants (mean ± s: ...
Maddux Dugan W - - 2012
People with chronic kidney disease and end-stage renal disease often suffer from multiple related disorders, progressive deconditioning, and loss of functional capacity. Yet increased physical activity has been shown to improve patients' quality of life and nutrition, reduce inflammation and depression, and decrease treatment costs and the need for hospitalization. ...
Panza Gregory A - - 2012
OBJECTIVES: Two separate studies assessed the psychometric properties of a retrospective behavioral measure adapted for exercise called the Timeline Followback for Exercise (TLFB-E). Study one examined criterion, convergent, and predictive validity. Study two examined test-retest reliability. METHODS: Study one participants (N = 66) were college students 20.0 ± 1.4yr. Validity ...
Ferguson Scott K SK Department of Anatomy and Physiology, Kansas State University, Manhattan, KS 66506, - - 2013
Dietary nitrate (NO(3)(-)) supplementation, via its reduction to nitrite (NO(2)(-)) and subsequent conversion to nitric oxide (NO) and other reactive nitrogen intermediates, reduces blood pressure and the O(2) cost of submaximal exercise in humans. Despite these observations, the effects of dietary NO(3)(-) supplementation on skeletal muscle vascular control during locomotory ...
Behnke Bradley J BJ Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, Florida 32611, USA. - - 2012
With old age, blood flow to the high-oxidative red skeletal muscle is reduced and blood flow to the low-oxidative white muscle is elevated during exercise. Changes in the number of feed arteries perforating the muscle are thought to contribute to this altered hyperemic response during exercise. We tested the hypothesis ...
Loenneke Jeremy P - - 2012
We sought to determine if blood flow restriction (BFR) by itself or in combination with exercise would result in prolonged decrements in torque when using restriction pressures relative to the participants' limb size. Sixteen participants were randomized into Experiment A (n = 9) or Experiment B (n = 7). Experiment A participants performed unilateral ...
Manimmanakorn Apiwan - - 2012
OBJECTIVES: To investigate the effect of blood flow restriction or normobaric hypoxic exposure combined with low-load resistant exercise (LRE), on muscular strength and endurance. DESIGN: A randomised controlled trial. METHODS: Well-trained netball players (n=30) took part in a 5 weeks training of knee flexor and extensor muscles in which LRE ...
Abel Allison N - - 2012
Abstract Objectives: Yoga is a popular form of exercise in the Western world, and yoga's effects on pulmonary function have been investigated previously. The purpose of this article is to review this research systematically and determine if regular yoga training improves pulmonary function in apparently healthy individuals. Methods: Using the ...
Barrett-O'Keefe Zachary Z Department of Exercise and Sport Science, University of Utah, Salt Lake City, UT 84148, - - 2012
Maximal strength training (MST) reduces pulmonary oxygen uptake (Vo(2)) at a given submaximal exercise work rate (i.e., efficiency). However, whether the increase in efficiency originates in the trained skeletal muscle, and therefore the impact of this adaptation on muscle blood flow and arterial-venous oxygen difference (a-vO(2diff)), is unknown. Thus five ...
Schewe Rebecca E - - 2012
Previous thoracic artificial lungs (TALs) had blood flow impedance greater than that of the natural lungs, which could cause abnormal pulmonary hemodynamics. New compliant TALs (cTALs), however, have an impedance lower than that of the natural lung. In this study, a cTAL of new design was attached between the pulmonary ...
Doustar Yousef - - 2012
We studied the cardioprotective effect of resistance training against ischaemia-reperfusion-induced injury. Forty male rats were divided into trained and sedentary groups (n = 20 for each). The trained rats were exercised at 12 repetitions/set, four sets/day and five days/week for four weeks. Transient regional ischaemia of the left anterior descending ...
Bieuzen François - - 2012
Electric muscle stimulation has been suggested to enhance recovery after exhaustive exercise by inducing an increase in blood flow to the stimulated area. Previous studies have failed to support this hypothesis. We hypothesized that the lack of effect shown in previous studies could be attributed to the technique or device ...
Tang Ada - - 2012
Examining participant-perceived change in walking provides insight into whether changes were meaningful for participants. This study examined the relationships between change scores in standardized walking outcomes and ratings of perceived change following exercise poststroke. Self- and fast-paced gait speed and Six-Minute Walk Test (6MWT) distance were assessed in 22 participants ...
Sacre J W - - 2012
Poor prognosis associated with blunted post-exercise heart-rate recovery may reflect autonomic dysfunction. This study sought the accuracy of post-exercise heart-rate recovery in the diagnosis of cardiac autonomic neuropathy, which represents a serious, but often unrecognized complication of Type 2 diabetes. Clinical assessment of cardiac autonomic neuropathy and maximal treadmill exercise ...
Murias Juan M - - 2012
Two methods for estimating changes in microvascular O(2) delivery during the on-transient of exercise were evaluated. They were tested to assess the role of the adjustment of the estimated microvascular O(2) delivery in the speeding of VO(2) kinetics during a Mod1-Hvy-Mod2 protocol (Mod, moderate-intensity exercise; Hvy, heavy-intensity 'priming' exercise) in ...
Denis Romain - - 2013
To determine the effects of light emitting diode therapy (LEDT) irradiation on blood lactate concentration ([La]) clearance, peak power output and fatigue index (FI) following high intensity fatiguing exercise. Single-blinded randomised cross-over placebo controlled trial. University College Dublin, Institute for Sport and Health, Human performance laboratory. Eighteen healthy male athletes ...
Fitzsimmons-Craft Ellen E - - 2012
We constructed and validated a measure of comparison dimensions associated with eating pathology, namely, the Body, Eating, and Exercise Comparison Orientation Measure (BEECOM). Participants were 441 undergraduate women. In Study 1, items were generated and refined via exploratory factor analysis, yielding three interpretable factors (i.e., Body, Eating, and Exercise Comparison ...
Bongers Bart C - - 2012
PURPOSE: To examine the reliability and validity of the steep ramp test (SRT), a feasible, maximal exercise test on a cycle ergometer which does not require the use of respiratory gas analysis, in healthy children and adolescents. Methods: Seventy-five children were randomly divided in a reliability group (n=37, 17 boys; ...
Hackett Daniel A - - 2012
Abstract In this study, we examined the validity of a novel subjective scale for assessing resistance-exercise effort. Seventeen male bodybuilders performed five sets of 10 repetitions at 70% of one-repetition maximum, for the bench press and squat. At the completion of each set, participants quantified their effort via the rating ...
Lichtenstein M B - - 2012
Exercise addiction is characterized by excessive exercise behavior with potential negative consequences. The symptoms consist of salience, mood modification, tolerance, withdrawal symptoms, conflicts, and relapse. The purpose of this study was to test the psychometric properties of the exercise addiction inventory (EAI) and to estimate the prevalence of exercise addiction ...
Lovell T W J - - 2012
PURPOSE: The purpose of this study was to examine the validity of session-RPE (sRPE) for monitoring training intensity in rugby league. METHODS: Thirty-two professional rugby league players participated in this study. Training load (TL) data was collected during an entire season, assessed via microtechnology (heart rate (HR) monitors, global positioning ...
Watt Brian P - - 2012
An observational study was performed as a preliminary investigation into the use of transcranial Doppler ultrasound (TCD) for recording cerebral hemodynamic changes during multiple tasks. TCD is a method of measuring cerebral blood flow (CBF) using ultrasound transducers in contact with the surface of the head. Using the maximum flow ...
Billinger Sandra A - - 2012
The purpose of this study was to examine the ability of the YMCA submaximal exercise test protocol using a total body recumbent stepper to predict V˙O(2peak). Of 112 individuals initially screened, 110 individuals with low to moderate cardiovascular disease risk met the inclusion criteria for participation in the study. The ...
Ingham Stephen A - - 2012
PURPOSE: This study examined parameters derived from both an incremental step-wise and ramp-wise graded rowing exercise test in relation to rowing performance. METHODS: Discontinuous step-wise incremental rowing to exhaustion established lactate threshold (LT), maximum oxygen consumption (VO2maxSTEP) and power associated with VO2max (W VO2max). A further continuous ramp-wise test was ...
Benavente J A - - 2012
The feasibility of using radiochromic films to verify the metrological coherence among standard beta radiation fields was evaluated. Exercises were done between two Brazilian metrology laboratories in beta fields from (90)Sr/(90)Y, (85)Kr and (147)Pm radiation sources. Results showed that the radiochromic film was useful for field mapping aiming uniformity and ...
Donath Lars - - 2012
The study investigated physiological responses during 2-km walking at a certain intensity of a previously performed maximal exercise test where a moderate perceived exertion was reported. 20 seniors were examined by an incremental walking treadmill test to obtain VO2max. A submaximal 2-km walking test was applied one week later. The ...
Lawrence John P - - 2012
BACKGROUND: Clinical trials for adults with pulmonary arterial hypertension use exercise capacity, as measured by walking distance, as the primary endpoint to measure symptomatic improvement. In this article, we look at the relationship between walking distance and a hemodynamic variable, pulmonary vascular resistance index (PVRI), from the available trials. METHODS: ...
Lippi Giuseppe - - 2012
Only a few studies have assessed the kinetics of cardiac troponins after endurance exercise by using the novel high-sensitive (HS) immunoassays. These were based on the measurement of HS-TroponinT (TnT), but not HS-Troponin I (TnI), and exclusively involved marathon or ultra-marathon contests. TnI was measured in 17 healthy trained Caucasian ...
Agostoni Piergiuseppe - - 2012
OBJECTIVES: We built and validated a new heart failure (HF) prognostic model which integrates cardiopulmonary exercise test (CPET) parameters with easy-to-obtain clinical, laboratory, and echocardiographic variables. BACKGROUND: HF prognostication is a challenging medical judgment, constrained by a magnitude of uncertainty. METHODS: Our risk model was derived from a cohort of ...
Poortmans Jacques R - - 2012
ObjectiveGlomerular filtration rate (GFR) is part of routine medical practice for clinical assessment of kidney function in health and disease conditions, and is determined by measuring the clearance of creatinine (Cl-Crn) or estimated (eGFR) from equations using serum creatinine (Crn) or cystatin C (Cyst C). Crn and Cyst C methods ...
Goulet Eric D B - - 2012
ObjectiveIt is purported that exercise-induced dehydration (EID), especially if ≥ 2% bodyweight, impairs endurance performance (EP). Field research shows that athletes can achieve outstanding EP while dehydrated > 2% bodyweight. Using the meta-analytic procedure, this study compared the findings of laboratory-based studies that examined the impact of EID upon EP ...
Kipp Kristof - - 2012
The purpose of this study was to identify multijoint lower extremity kinematic and kinetic synergies in weightlifting and compare these synergies between joints and across different external loads. Subjects completed sets of the clean exercise at loads equal to 65, 75, and 85% of their estimated 1-RM. Functional data analysis ...
Collins Eileen G - - 2012
The purpose of this study was to compare the effects of a 24-week walking with poles rehabilitation program with a traditional 24-week walking program on physical function in patients with peripheral arterial disease (PAD). Patients with PAD (n = 103, age = 69.7 ± 8.9 years, ankle-brachial index < 0.90 ...
Malagò R - - 2012
PURPOSE: The authors sought to evaluate the incremental value of introducing coronary angiography with multidetector computed tomography (MDCT-CA) compared with the conventional diagnostic workup in managing patients with suspected coronary artery disease (CAD) workup. MATERIALS AND METHODS: A total of 531 consecutive patients underwent MDCT-CA between April 2008 and August ...
McNarry Melitta A - - 2012
The use of heart rate variability (HRV) parameters during exercise is not supported by appropriate reliability studies. In 80 healthy adults, ECG was recorded during three 6 min bouts of exercise, separated by 6 min of unloaded cycling. Two bouts were at a moderate intensity while the final bout was at a ...
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