Search Results
Results 851 - 900 of 2028
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Nagashima Junzo - - 2011
OBJECTIVE: It is usually suggested that life expectancy of top athletes especially in endurance sports is longer than that of sedentary people. On the other hand, heart rate recovery (HRR) after exercise is an independent risk factor for cardiovascular disease and mortality, but differences in HRR between various top athletes ...
Chiang Yueh-Tao - - 2011
Aim.  To describe the subjective experience of engaging in exercise for adolescents with mild congenital heart disease (CHD). Background.  Most children with mild CHD are now expected to survive to adolescence and even into adulthood. With early intervention, cardiopulmonary function and exercise capacity in most are comparable to those of ...
Rocha Natália Galito - - 2011
Nitric oxide is the primary mediator of vasodilation during mental stress. Since genetic polymorphisms in the nitric oxide synthase (eNOS) gene seem to impair the production of NO, this study aimed to evaluate the effect of an exercise bout on hemodynamic responses to mental stress in subjects with the 894G>T ...
Esco Michael R - - 2011
Esco, MR, Williford, HN, and Olson, MS. Skinfold thickness is related to cardiovascular autonomic control as assessed by heart rate variability and heart rate recovery. J Strength Cond Res 25(X): 000-000, 2011-The purpose of this study was to determine if heart rate recovery (HRR) and heart rate variability (HRV) are ...
Hayes Philip R - - 2011
Hayes, PR, French, DN, and Thomas, K. The effect of muscular endurance on running economy. J Strength Cond Res 25(X): 000-000, 2011-The purpose of this study was to examine the relationship between fatigue-induced changes in running economy (RE) and muscular strength endurance (MSE). Ten well-trained male runners completed 2 runs ...
Pretzer-Aboff Ingrid - - 2011
BACKGROUND:: Parkinson's disease (PD) results in a progressive loss of function such that family caregivers provide a large percentage of the personal care to PD patients living in the home setting. OBJECTIVES:: The aim of this study was to test the feasibility and impact of function-focused care for PD (FFC-PD) ...
Nelson Andre R - - 2011
PURPOSE:: To determine the effect of post-exercise protein-leucine co-ingestion with carbohydrate-lipid on subsequent high-intensity endurance performance, and to investigate candidate mechanisms using stable isotope methods and metabolomics. METHODS:: In a double-blind randomized crossover, 12 male cyclists ingested a leucine/protein/carbohydrate/fat supplement (LEUPRO, respectively 7.5/20/89/22 g·h) or isocaloric carbohydrate/fat control (119/22 g·h) ...
Arnaoutis Giannis - - 2011
It has been suggested that mouth rinse and/or ingestion of fluids during exercise may have a beneficial effect on performance. However the existing results are controversial. PURPOSE:: We hypothesized that pharyngeal receptor activation through ingestion of a small amount of water could enhance performance better than mouth rinse in dehydrated ...
Galgani Jose E JE Department of Nutrition, Faculty of Medicine, University of Chile, Santiago, Chile. - - 2012
Reduced skeletal muscle mitochondrial density is proposed to lead to impaired muscle lipid oxidation and increased lipid accumulation in sedentary individuals. We assessed exercise-stimulated lipid oxidation by imposing a prolonged moderate-intensity exercise in men with variable skeletal muscle mitochondrial density as measured by citrate synthase (CS) activity. After a 2-day ...
Andreoli A - - 2011
Objectives:The aim of this retrospective study was to determine the long-term effect of exercise on bone mineral density (BMD), bone mineral content (BMC) and body composition (BC) in post-menopausal women who were elite athletes during their youth compared with sedentary controls.Subjects/Methods:It is a retrospective study and carried out in an ...
Ghosh Sangeeta S Diabetes Division, Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, Texas, - - 2011
Aging increases the risk of developing impaired glucose tolerance (IGT) and type 2 diabetes. It has been proposed that increased reactive oxygen species (ROS) generation by dysfunctional mitochondria could play a role in the pathogenesis of these metabolic abnormalities. We examined whether aging per se (in subjects with normal glucose ...
Fu Shi-Jian - - 2011
The objective of this study was to determine whether acclimation to hypoxia and sustained exercise would increase hypoxia tolerance (as indicated by a decrease in critical oxygen tension, P(crit)) and swimming performance in goldfish (Carassius auratus), and to investigate the relationship between changes in performance and gill remodelling and tissue ...
Dominguez James M JM - - 2011
Testicular function and associated testosterone concentration decline with advancing age, and an impaired O₂ supply may contribute, in part, to this reduction. We hypothesized that there would be a reduced microvascular Po₂ (Po₂(m)) in the testes from aged rats, and this reduced Po₂(m) would be associated with impaired vasomotor control ...
Guimarães J B - - 2011
We investigated brain mechanisms modulating fatigue during prolonged physical exercise in cold environments. In a first set of studies, each rat was subjected to three running trials in different ambient temperatures (T(a) ). At 8 °C and 15 °C, core body temperature (T(core) ) decreased and increased, respectively, whereas at 12 °C, the ...
Hartog Jasper W L JW Department of Cardiology, University Medical Center Groningen, University of Groningen, PO Box 30.001, 9700 RB, Groningen, The - - 2011
Advanced glycation endproducts (AGEs) have been associated with the development and progression of chronic heart failure (CHF). Advanced glycation endproducts-crosslink breakers might be of benefit in HF, but only small-scale and uncontrolled data are available. Our aim was to conduct a prospective, randomized, double-blind, placebo-controlled study to examine the effects ...
Lemmey Andrew B - - 2011
OBJECTIVE.: Rheumatoid arthritis (RA) patients were reassessed for body composition and physical function 39±6 months after commencing an RCT involving 24 weeks of either high-intensity progressive resistance training (PRT) or low-intensity range of movement exercise (control) to determine whether the benefits of PRT (i.e. reduced fat mass (FM), increased lean ...
Myllymäki Tero - - 2011
Acute physical exercise may affect cardiac autonomic modulation hours or even days during the recovery phase. Although sleep is an essential recovery period, the information on nocturnal autonomic modulation indicated by heart rate variability (HRV) after different exercises is mostly lacking. Therefore, this study investigated the effects of exercise intensity ...
Ayles Simon - - 2011
Evidence suggests large diameter afferents, presumably in response to centrally mediated changes, augment the mechanical allodynia or hyperalgesia seen in delayed onset muscle soreness (DOMS) conditions. Healthy males aged 18 to 30 (n = 16) performed eccentric exercise eliciting DOMS in the tibialis anterior muscle of a randomly assigned exercised ...
Maranhão-Neto Geraldo de Albuquerque - - 2011
BACKGROUND: The Veterans Specific Activity Questionnaire (VSAQ) has been used to individualize exercise testing (ET) and to indirectly assess cardiorespiratory fitness (CRF) in epidemiological studies. Nevertheless, there is no validated Portuguese version. OBJECTIVE: To verify the criterion-related validity and the measurement equivalence of a Portuguese version of VSAQ in 95 ...
Wang Norman C - - 2011
There is an increased risk of cardiac events after exercise, which may, in part, be mediated by the sympathoexcitation that accompanies exercise. The duration and extent of this sympathoexcitation following moderate exercise is unknown, particularly in those with coronary artery disease (CAD). Twenty control subjects (mean age, 51 years) and ...
Dalbo Vincent J - - 2011
To determine the influence of age and resistance exercise on myostatin pathway-related genes, younger (n = 10; 28 ± 5 years) and older (n = 10; 68 ± 6 years) men underwent four testing conditions (T1-T4). A baseline (T1) muscle sample was obtained, whereas the second and third biopsies were ...
Guerra Borja - - 2011
This study was designed to determine whether sprint exercise activates signaling cascades linked to leptin actions in human skeletal muscle and how this pattern of activation may be interfered by glucose ingestion. Muscle biopsies were obtained in 15 young healthy men in response to a 30-s sprint exercise (Wingate test) ...
Limberg Jacqueline K JK Department of Kinesiology, School of Education, University of Wisconsin, 1149 Natatorium, Madison, WI 53706, USA. - - 2012
This study was designed to test whether obese adults and adults with metabolic syndrome (MetSyn) exhibit altered hyperemic responses to hypoxia at rest and during forearm exercise when compared with lean controls. We hypothesized blood flow responses due to hypoxia would be lower in young obese subjects (n = 11, ...
Ingrassia Pier Luigi - - 2011
OBJECTIVES: To demonstrate the applicability and the reliability of a radio frequency identification (RFID) system to collect data during a live exercise. METHODS: A rooftop collapse of a crowded building was simulated. Fifty-three volunteers were trained to perform as smart victims, simulating clinical conditions, using dynamic data cards, and capturing ...
Jung Eun-Young - - 2011
This study confirmed the educational effectiveness of practical exercises (PE) using intravenous (IV) simulators incorporating virtual reality (VR)/haptics (based on the sense of touch) device technologies. First-year nursing students (n=114) were randomly divided into three PE groups: Group A, utilizing a conventional arm model (IV arm); Group B, utilizing a ...
Linneberg Allan - - 2011
Background:  Several studies have suggested that the effects of COPD rehabilitation programs tend to attenuate with time. We aimed to investigate the effects of supplemental exercise sessions following an initial 7-week COPD rehabilitation program with regard to exercise capacity and disease-specific quality of life (QoL). Methods:  We performed a 7-week ...
Saavedra Jose M - - 2011
Abstract The purpose of this meta-analysis was to assess the effectiveness of diverse interventions in aerobic fitness adjusted for weight in obese children. A computerized search of seven databases was carried out using keywords. Effect sizes and 95% confidence intervals were calculated, and the heterogeneity of the studies was assessed ...
Swinton Paul A - - 2011
Swinton, PA, Stewart, A, Agouris, I, Keogh, JWL, and Lloyd, R. A biomechanical analysis of straight and hexagonal barbell deadlifts using submaximal loads. J Strength Cond Res 24(X): 000-000, 2011-The purpose of the investigation was to compare the kinematics and kinetics of the deadlift performed with 2 distinct barbells across ...
Grigg Nicole L - - 2011
PURPOSE:: Eccentric exercise has become the treatment of choice for Achilles tendinopathy. However, little is known about the acute response of tendon to eccentric exercise or the mechanisms underlying its clinical benefit. This research evaluated the sonographic characteristics and acute Anteroposterior(AP)strain response of control (healthy), asymptomatic and symptomatic Achilles tendons ...
Dolak Kimberly L - - 2011
Randomized clinical trial. To determine if females with patellofemoral pain syndrome (PFPS) who perform hip strengthening prior to functional exercises demonstrate greater improvements than females who perform quadriceps strengthening prior to the same functional exercises. Although PFPS has previously been attributed to quadriceps dysfunction, more recent research has linked this ...
Gatti Roberto - - 2011
Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} STUDY DESIGN: Randomized clinical trial. OBJECTIVES: To ...
Ganio Matthew S - - 2011
The present study assessed the effects of mild dehydration on cognitive performance and mood of young males. A total of twenty-six men (age 20·0 (sd 0·3) years) participated in three randomised, single-blind, repeated-measures trials: exercise-induced dehydration plus a diuretic (DD; 40 mg furosemide); exercise-induced dehydration plus placebo containing no diuretic (DN); ...
Cederberg Henna - - 2011
Objective  Ghrelin has been implicated in energy homeostasis, body weight regulation and glucose metabolism. Level of unacylated ghrelin (UAG), but not acylated ghrelin (AG), has been suggested to increase during long-term exercise. However, the association of the level of UAG with exercise-induced changes of insulin sensitivity and lipid metabolism has ...
Beauchamp Mark - - 2011
The purpose of this study was to examine the extent to which perceptions of surface-level (i.e. age, ethnicity, physical condition) and deep-level (i.e. attitudes, beliefs, values) similarity, as assessed shortly after group formation, predict participants' subsequent attendance behaviors within postnatal physical activity classes. Women (N = 136) enrolled in 21 ...
Amann Markus - - 2011
We investigated the role of skeletal muscle afferent feedback in circulatory control during rhythmic exercise in humans. Nine healthy males performed single leg knee-extensor exercise (15/30/45 watts, 3 min each) under both control conditions (Ctrl) and with lumbar intrathecal fentanyl impairing μ-opioid receptor-sensitive muscle afferents. Cardiac output and femoral blood ...
Capranica Laura - - 2011
The aim of this study was to evaluate the effects of an official taekwondo competition (three 1-min rounds with a 1-min recovery in-between) on heart rate (HR), salivary alpha-amylase (sAA), and salivary-free cortisol (sC) in children. Parental consent was obtained for 12 young (10.4 ± 0.2 years) male taekwondo athletes. Saliva sample were ...
Hammersen Johanna E - - 2011
To evaluate exertional overheating and the impact of physical exercise on individuals with hypohidrotic ectodermal dysplasia (HED) and to assess protective effects of cooling devices, 13 boys and male adolescents with X-linked HED (XLHED) and age-matched healthy male controls were studied during standardized exercise on a bicycle ergometer at ambient ...
Gapin Jennifer I - - 2011
Athletic identity is the extent to which an individual identifies with being an athlete. Strong "running" role identity may contribute to increased restrictive dieting behaviours, potentially placing such individuals at risk for eating disorders. In this study, we examined differences in eating and exercise behaviours/attitudes and athletic identity in obligatory ...
Ivey Frederick M - - 2011
Animal studies provide strong evidence that aerobic exercise training positively influences cerebral blood flow, but no human studies support the use of exercise for improving cerebral hemodynamics. This randomized study in stroke survivors assessed the effects of treadmill aerobic exercise training (TM) on cerebral blood flow parameters compared to a ...
Kemmler W - - 2011
The purpose of this 12 month randomized exercise intervention was to determine the effect of a block-periodized multipurpose exercise program on bone mineral density (BMD) and parameters of the metabolic syndrome (MetS) in early post-menopausal women. Eighty-five subjects (52.3 ± 2.4 years) living in the area of Erlangen (Germany) were ...
Dobkin Bruce H - - 2011
Outcome measures of mobility for large stroke trials are limited to timed walks for short distances in a laboratory, step counters and ordinal scales of disability and quality of life. Continuous monitoring and outcome measurements of the type and quantity of activity in the community would provide direct data about ...
Okumura Takahiro - - 2011
BACKGROUND: Both peak VO(2) and VE/VCO(2) slope are considered to be useful predictors of cardiovascular events. The left ventricular (LV) response to dobutamine stress testing (DST) also provides useful prognostic information. However, the relationship between these variables has not been fully investigated. Therefore, the aim of this study is to ...
Prettin S - - 2011
The purpose of this study was to compare the blood-lactate and heart rate response of three treadmill tests and to define a conversion algorithm. Subjects included 19 long-distance runners. The first two tests had increments of 2 km/h every 3 (test3m) or 5 minutes (test5m). The third test (testFm) consisted ...
Pigozzi F - - 2011
Endothelial dysfunction has been recognized as the early event and the common feature of chronic disorders associated with increased risk for atherosclerotic heart diseases. While the beneficial effects of aerobic, moderate-intensity exercise on endothelial function are very well assessed, an intriguing doubt exists about the effects of long-term high-intensity physical ...
Karageorghis Costas I - - 2011
In the present study, we investigated a hypothesized quartic relationship (meaning three inflection points) between exercise heart rate (HR) and preferred music tempo. Initial theoretical predictions suggested a positive linear relationship (Iwanaga, 1995a, 1995b); however, recent experimental work has shown that as exercise HR increases, step changes and plateaus that ...
Baker Lindsay B - - 2011
Simultaneous whole-body wash-down (WBW) and regional skin surface sweat collections were completed to compare regional patch and WBW sweat calcium (Ca), magnesium (Mg), copper (Cu), manganese (Mn), iron (Fe), and zinc (Zn) concentrations. Athletes (4 men, 4 women) cycled in a plastic open-air chamber for 90 min in the heat. ...
Koga Shunsaku - - 2011
The conventional continuous wave near-infrared spectroscopy (CW-NIRS) has enabled identification of regional differences in muscle deoxygenation following onset of exercise. However, assumptions of constant optical factors (e.g., path length), used to convert the relative changes in CW-NIRS signal intensity to values of relative concentration, bring the validity of such measurements ...
Balbi David A - - 2011
Objectives:  The primary objective of the study was to understand the public's perception of the effectiveness of Rhode Island's public health emergency response plans by using municipal H1N1 vaccination clinics conducted in Rhode Island in January and February 2010 as a basis for public reaction. The effect of previous exercises ...
Berry Tanya R - - 2011
This research examined attentional bias toward exercise-related images using a visual probe task. It was hypothesized that more-active participants would display attentional bias toward the exercise-related images. The results showed that men displayed attentional bias for the exercise images. There was a significant interaction of activity level by gender, and ...
Liu Bao - - 2011
To assess the effects of Tai Chi (Chinese shadow boxing exercise) for improving the lower-limb muscle strength in elderly people. The PUBMED database (from 1950), EMBASE-ASP database (from 1974), Cochrane Library (from 1991), Elsevier sciences database (from 1990), OVID full text database (from 1997), Springer-link database (from 1997), The National ...
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