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Bloom Erika Litvin - - 2012
Physical activity has been identified as a protective factor with regard to tobacco use, such that physically active adolescents are less likely to initiate smoking, and smokers are less physically active than non-smokers. These findings, along with the well-documented benefits of exercise on mood and well-being in adults, have stimulated ...
Drew Benjamin T - - 2012
BACKGROUND: Previous reviews have highlighted the benefit of loaded therapeutic exercise in the treatment of tendinopathy. Changes in observable structural outcomes have been suggested as a possible explanation for this response to therapeutic exercise. However, the mechanism for the efficacy of therapeutic exercise remains unclear. OBJECTIVE: To systematically review the ...
Baldwin Austin S - - 2012
Objective: Self-persuasion-generating one's own arguments for engaging in a specific behavior-can be an effective strategy to promote health behavior change, yet the causal processes that explain why it is effective are not well-specified. We sought to elucidate specific causal components and a mediating process of self-persuasion in two health behavior ...
Shahab Lion L Department of Epidemiology and Public Health, University College London, 1-19 Torrington Place, WC1E 6BT, London, UK. - - 2013
Breathing exercises have been proposed as a way of combating cigarette cravings, potentially presenting a low-cost, easily scalable smoking cessation aid. The aim of this study is to evaluate the acute impact of breathing exercises based on yogic pranayama on cravings in abstaining smokers. Participants visited the laboratory on two ...
Hobara Hiroaki - - 2012
Background: Understanding leg stiffness (K (leg)) in amputee sprinters is important for the evaluation of their sprint ability and development of running-specific prostheses (RSP). Objectives: To investigate K (leg) during hopping in amputee sprinters. Study Design: Cross-sectional study. Methods: Seven transtibial (TT) and seven transfemoral (TF) amputee sprinters, as well ...
Lanier Angela Baldwin - - 2012
To assess health-related fitness, physical activity correlates, and completion of a half-marathon using a 3-day training program in a college community. 26 volunteers participated in a 20-week, half-marathon training program. All participants completed the half-marathon. Positive changes in health-related fitness and psychological correlates associated with future exercise participation were observed. ...
Killen L G - - 2012
This study examined effects of caffeine on session ratings of perceived exertion (RPE) following 30 min constant-load cycling. Individuals (n = 15) of varying aerobic fitness completed a [Formula: see text] max trial and two 30 min cycling bouts (double-blind, counterbalanced) following ingestion of 6 mL/kg of caffeine or matched placebo. RPE overall, legs and ...
Fox Benjamin Daniel - - 2012
BACKGROUND: Patients with pulmonary hypertension (PH) typically have exercise intolerance and limitation in climbing steps. OBJECTIVES: To explore the exercise physiology of step climbing in PH patients, on a laboratory-based step test. METHODS: We built a step oximetry system from an 'aerobics' step equipped with pressure sensors and pulse oximeter ...
Piscione Julien - - 2012
Soleus Hoffmann reflex (H-reflex) amplitude is affected by a training period and type and level of training are also well known to modify aerobic capacities. Previously, paired changes in H-reflex and aerobic capacity have been evidenced after endurance training. The aim of this study was to investigate possible links between ...
Barone Gibbs Bethany - - 2012
To investigate the effect of an exercise intervention on flow-mediated dilation (FMD) and circulating endothelial biomarkers in adults with type 2 diabetes (T2DM). Sedentary adults (n = 140), aged 40-65, with T2DM and untreated pre or Stage I hypertension or treated hypertension were randomized to a 6-month, supervised, exercise program ...
Araneda O F - - 2012
The impact of an endurance race on pulmonary pro-oxidative formation and lipoperoxidation was evaluated using exhaled breath condensate (EBC). 3 groups of 12, 12 and 17 healthy recreational runners of both sexes ran 10, 21.1 and 42.2 km, respectively. EBC samples were obtained before the run and at 20 and ...
Chapman D W - - 2012
OBJECTIVES: We tested the hypothesis that fast skeletal muscle troponin I (fsTnI) concentration in serum would increase more than those of slow skeletal muscle troponin I (ssTnI) after eccentric exercise of the elbow flexors using a sensitive blood marker to track fibre specific muscle damage. DESIGN: Observational comparison of response ...
Alghamdi Mohammed H - - 2012
AIMS: The contribution of the systolic function of the right ventricular (RV) outflow tract (RVOT) and of longitudinal shortening of the body of the right ventricle to global RV systolic function and exercise capacity in patients after tetralogy of Fallot (TOF) repair is unclear. Our aim was to characterize the ...
Chien Jung-Yien - - 2012
BACKGROUND: Abnormal thoraco-abdominal motion may contribute to exercise limitation in patients with chronic pulmonary obstructive disease (COPD). The current study aimed to assess how the thoraco-abdominal asynchrony in COPD patients correlates with exercise performance during the six-minute walk test (6MWT). METHODS: Eighty-eight COPD patients (40 moderate and 48 severe) and ...
Mawyer J D - - 2012
Stallions (n = 8) were implanted with a thermal sensory device in the muscle of the neck and the subcutaneous tissue of the scrotum and then assigned to either a non-exercise (Non-EX; n = 4) or exercise (EX; n = 4) group. A motorized equine exerciser was used to work ...
Bjersing Jan L - - 2012
ABSTRACT: INTRODUCTION: Fibromyalgia (FM) is characterized by chronic pain. Impaired growth hormone responses and reduced serum insulin-like growth factor 1 (IGF-1) are common in FM. The aim was to examine changes in serum IGF-1, cerebrospinal fluid (CSF), neuropeptides and cytokines during aerobic exercise in FM patients. METHOD: A total of ...
Beck Kenneth C - - 2012
Functional values of LogSD of the ventilation distribution (σ(V)) have been reported previously, but functional values of LogSD of the perfusion distribution (σ(q)) and the coefficient of correlation between ventilation and perfusion (ρ) have not been measured in humans. Here, we report values for σ(V), σ(q), and ρ obtained from ...
Nguyen Huong Q HQ Department of Biobehavioral Nursing and Health System, University of Washington, Seattle, WA 98195, USA. - - 2012
The aims of this paper were (1) to describe objectively confirmed physical activity patterns across 3 chronic cardiopulmonary conditions, and (2) to examine the relationship between selected physical activity dimensions with disease severity, self-reported physical and emotional functioning, and exercise performance. Cross-sectional study. Participants' home environment. Patients with cardiopulmonary illnesses: ...
Billat Véronique - - 2012
The study examined the maintenance of VO(2max) using VO(2max) as the controlling variable instead of power. Therefore, ten subjects performed three exhaustive cycling exercise bouts: (1) an incremental test to determine VO(2max) and the minimal power at VO(2max) (PVO(max)), (2) a constant-power test at PVO(max) and (3) a variable-power test ...
Marques-Neto Silvio R - - 2012
ABSTRACT: Marques-Neto, SR, Maior, AS, Maranhão Neto, GA, and Santos, EL. Analysis of heart rate deflection points to predict the anaerobic threshold by a computerized method. J Strength Cond Res 26(7): 1967-1974, 2012-Many studies have used the heart rate deflection points (HRDPs) during incremental exercise tests, because of their strong ...
Varambally Shivarama - - 2012
Schizophrenia is a highly disabling illness. Previous studies have shown yoga to be a feasible add-on therapy in schizophrenia. The current study aimed to test the efficacy of yoga as an add-on treatment in outpatients with schizophrenia. The study done at a tertiary psychiatry center used a single blind randomized ...
Bellar David - - 2012
ABSTRACT: There are many test available to coaches and practioners that seek to identify a point during exercise when excess lactate is being produced or hyperventilation stimulated as a results of metabolic acidosis. The present investigation sought to determine the relationship between performance and the first occurrence of excess CO2 ...
Kipp Kristof - - 2012
ABSTRACT: Identifying loads that maximize mechanical power is important because training at such loads may optimize gains in dynamic athletic performance. The purpose of this study was to examine correlations between measures of external mechanical power output and internal mechanical joint power output across different loads during a weightlifting exercise. ...
Mezzani Alessandro - - 2012
BACKGROUND: Pulmonary VO(2) on-kinetics during light-to-moderate-intensity constant-work-rate exercise, an experimental model mirroring energetic transitions during daily activities, has been shown to speed up with aerobic exercise training (AET) in normal subjects, but scant data are available in chronic heart failure (CHF). METHODS AND RESULTS: Thirty CHF patients were randomized to ...
Saylan Berna - - 2012
OBJECTIVE: The present study aims to study the relationship between tissue Doppler echocardiography (TDE) indices of right ventricle and exercise capacity in patients after total correction for tetralogy of Fallot (ToF). METHODS: This cross-sectional observational study included 20 patients, after undergoing total correction procedure for ToF diagnosed with mild/moderate pulmonary ...
Machado Marco - - 2012
In the current study, we examined the relationship between serum creatine kinase (CK) activity following upper body resistance exercise with a 1- or 3-min rest between sets. Twenty men performed two sessions, each consisting of four sets with a 10-repetition maximum load. The results demonstrated significantly greater volume for the ...
Tsao Te Hung - - 2012
We investigated the effects of different exercise intensities on C-reactive protein (CRP), and whether changes in CRP levels correlated with blood lipid levels. Ten men exercised at 25%, 65%, and 85% of their maximum oxygen consumption rates. Participants' blood was analyzed for CRP and blood lipid levels before and after ...
Bosch Pamela R - - 2012
To determine if 30 minutes of Nintendo Wii Sports boxing provides cardiorespiratory benefits and contributes to the daily exercise recommendations for healthy young adults. Twenty healthy 23- to 27-year-olds participated in two sessions to measure maximum heart rate (HR(max)) via a treadmill test and heart rate (HR) response to 30 ...
Linke Sarah E - - 2012
Interventions using sustained aerobic exercise programs to aid smoking cessation have resulted in modest, short-term cessation rates comparable to conventional cessation methods. No smoking cessation trial to date has prescribed intermittent bouts of exercise in response to nicotine cravings. This pilot randomized controlled trial examined the feasibility and efficacy of ...
Ozaki Hayao - - 2012
We examined the effects of high-intensity resistance training (HIT) and low-intensity blood flow-restricted (LI-BFR) resistance training on carotid arterial compliance. Nineteen young men were randomly divided into HIT (n = 9) or LI-BFR (n = 10) groups. The HIT and LI-BFR groups performed 75 and 30 %, respectively, of one-repetition maximum (1-RM) bench press exercise, ...
Totzeck Matthias - - 2012
Factors improving exercise capacity in highly trained individuals are of major interest. Recent studies suggest that the dietary intake of inorganic nitrate may enhance athletic performance. This has been related to the stepwise in vivo bioactivation of nitrate to nitrite and nitric oxide (NO) with the modulation of mitochondrial function. ...
Reihmane Dace - - 2012
The aim of this study was to test the hypothesis that exercise would induce inflammatory response characterized by increased pro-inflammatory cytokines - interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α), adhesion molecule, matrix metalloprotease-9 (MMP-9) and myeloperoxidase (MPO) levels. Additional aim was to elucidate the possible source of maximal exercise induced ...
Bernasconi Maurizio - - 2012
Background: Preoperative evaluation of lung resection candidates with impaired pulmonary reserves includes measurement of aerobic capacity. Stair climbing is an attractive low-cost alternative to treadmill exercise testing but it lacks standardisation. Objectives: To directly compare stair climbing and treadmill exercise testing with respect to an established cut-off value for lung ...
Kohanpour Mohammad Ali - - 2012
Introduction. Exercise-induced proteinuria is predominantly caused by alterations in renal hemodynamics. The present study was conducted to determine the effect of aerobic exercise in hypoxia on proteinuria and hematuria. Materials and Methods. The study population consisted of 17 physically trained healthy young men. They were asked to attend in 4 ...
Naito Yoko - - 2012
Management of asymptomatic congenital pulmonary airway malformations remains controversial when addressing the optimal timing of surgical resection. Neonatal resection is advocated by some based on the theory that earlier lobectomy results in greater compensatory lung growth. We examined whether age at lobectomy is correlated with better pulmonary outcomes as reflected ...
Gomes Paulo Sergio Chagas - - 2012
A hypoxic model was used to investigate changes in localized cerebral and muscle haemodynamics during knee extension (KE) in healthy individuals. Thirty-one young healthy volunteers performed one set of KE until failure under hypoxia (14 % O(2)) or normoxia (21 % O(2)) at 50, 75 or 100 % of 1 repetition maximum, in ...
Huff Christopher M - - 2012
BACKGROUND: Dyspnea and the resulting functional impairment are a common complication in hypertrophic cardiomyopathy (HCM). The relationship between physician-perceived functional status, patient-perceived health status, and objective exercise test results has not been evaluated in this condition. PURPOSE: To evaluate the correlation between the Kansas City Cardiomyopathy Questionnaire (KCCQ) and (1) ...
Jakovljevic Djordje G DG Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne, UK. - - 2012
Cardiac power output (CPO) is a unique and direct measure of overall cardiac function (i.e. cardiac pumping capability) that integrates both flow- and pressure-generating capacities of the heart. The present study assessed the relationship between peak exercise CPO and selected indices of cardio-respiratory fitness. Thirty-seven healthy adults (23 men and ...
Bourlai Thirimachos - - 2012
Abstract Background. Monitoring core body temperature to identify heat stress in first responders and in individuals participating in mass gatherings (e.g., marathons) is difficult. Objective. This study utilized high-sensitivity thermal imaging technology to predict the core temperature of human subjects at a distance while performing simulated field operations wearing thermal ...
Ohmura Hajime - - 2012
Objective-To determine the influence of transportation by road and air on heart rate (HR) and HR variability (HRV) in horses. Animals-6 healthy horses. Procedures-ECG recordings were obtained from horses before (quarantine with stall rest [Q]; 24 hours) and during a journey that included transportation by road (RT; 4.5 hours), waiting ...
Ualí Ismael - - 2012
ABSTRACT: Ualí, I, Herrero, AJ, Garatachea, N, Marín, PJ, Alvear-Ordenes, I, and García-López, D. Maximal strength on different resistance training rowing exercises predicts start phase performance in elite kayakers. J Strength Cond Res 26(4): 941-946, 2012-This study aimed to examine the relationship existing between maximum strength values in 2 common ...
Messias Leandro Rocha - - 2012
BACKGROUND: Heart Rate Recovery (HRR) reflects the capacity of the cardiovascular system to reverse the vagal withdrawal caused by exercise. Scintigraphy with metaiodobenzylguanidine (I¹23 MIBG) evaluates innervation and cardiac adrenergic activation. The association of these two methods is not well established. OBJECTIVE: To evaluate the association between HRR and washout ...
Pettitt R W - - 2012
A 3-min all-out exercise test (3 MT) estimates critical power and the curvature constant for cycle ergometry validly; however, the mode of running has not been studied. We examined the efficacy of a running 3 MT, using global positioning sensor data, to predict outdoor racing performance. Women distance runners (n=14) ...
Tabira Kazuyuki - - 2012
BACKGROUND: Muscle oxygenation correlates with systemic oxygen uptake (VO₂) in normal subjects; however, whether this relationship exists chronic obstructive pulmonary disease (COPD) patients remains unclear. The purpose of this study was to investigate the influence of skeletal muscle oxygenation on VO₂ during exercise in patients with COPD. METHODS: Eight patients ...
Skiba Philip F - - 2012
PURPOSE:: The Critical Power (CP) model includes two constants, the CP and the W': P = W' / t + CP. The W' is the finite work capacity available above CP. Power output above CP results in depletion of the W'; complete depletion of the W' results in exercise intolerance. ...
Frigiola Alessandra - - 2012
AIMS: We aimed to assess the impact of surgical pulmonary valve replacement (PVR) for severe pulmonary regurgitation (PR) on biventricular function and its effect on exercise capacity. METHODS AND RESULTS: Seventy-three patients (mean age 23.6 ± 11.5 years, 47 females) underwent surgical PVR for PR. Echocardiogram and magnetic resonance imaging ...
Takaya Yoichi - - 2012
Impaired exercise capacity has been found in patients with diastolic dysfunction with preserved systolic function. Although conventional transthoracic echocardiography (TTE) provides useful clinical information about systolic and diastolic cardiac function, its capability to evaluate exercise capacity has been controversial. The inertia force of late systolic aortic flow is known to ...
Mahut Bruno - - 2012
Abstract Dyspnea is deemed to result from an imbalance between ventilatory demand and capacity. The single-breath diffusing capacity for carbon monoxide (DLCO) is often the best correlate to dyspnea in COPD. We hypothesized that DLCO contributes to the assessment of ventilatory demand, which is linked to physiological dead space /tidal ...
Maciejewski H - - 2012
The aim of this study was to test (a) three methods to estimate the quantity of lactate accumulated (Q(LaA) ) in response to supramaximal exercise and (b) correlations between Q(LaA) and the nonoxidative energy supply assessed by the accumulated oxygen deficit (AOD). Nine rowers performed a 3-min all-out test on ...
Boss Andreas - - 2012
Carnitine (Car) buffers excess acetyl-CoA through the formation of acetylCar (AcCar). AcCar's acetyl group (AG-AcCar) gives rise to a peak at 2.13 ppm in (1) H MR spectra of skeletal muscle, whereas the trimethylammonium (TMA) groups of both, AcCar and Car, are thought to contribute to the TMA peak at ...
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