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Fortes Matthew B - - 2011
Heat shock protein 72 (Hsp72) has been detected within saliva, and its presence may contribute to oral defence. It is currently unknown how physiological stress affects salivary Hsp72 or if salivary Hsp72 concentrations reflect plasma Hsp72 concentrations. We studied the effect of exercise upon salivary Hsp72 expression, and using caffeine ...
Gatti R - - 2011
Saliva contains cells and compounds, of local and non-local oral origin, namely inorganic, organic non-protein, protein/polypeptide, and lipid molecules. Moreover, some hormones, commonly assayed in plasma, such as steroids, are detectable in oral fluid and peptide/protein, and non-steroid hormones have been investigated. The sports practice environment and athletes' availability, together ...
Veijalainen Aapo - - 2011
Objective:  Arterial stiffness index (SI) and reflection index (RI) from digital pulse contour analysis have been shown to be good measures of arterial stiffness and may be useful in the evaluation of endothelial function. Finger skin temperature (FST) is also considered to reflect peripheral circulatory functions. We evaluated the reproducibility ...
Khaustova Svetlana - - 2010
Physical stress affects the immune system, activates the sympathetic (SNS) and parasympathetic (PNS) subsystems of autonomic nervous system (ANS), and increases the activity of the hypothalamic-pituitary-adrenal axis (HPA). The specific response of the major regulatory systems depends on the human functional state. Saliva is a unique diagnostic fluid, the composition ...
Rodrigues Letícia - - 2010
The intracerebroventricular infusion of streptozotocin (icv-STZ) has been largely used in research to mimic the main characteristics of Alzheimer's disease (AD), including cognitive decline, impairment of cholinergic transmission, oxidative stress and astrogliosis. Moderate physical exercise has a number of beneficial effects on the central nervous system, as demonstrated both in ...
Adlard Paul A - - 2011
While chronic or severe stress generally has negative consequences in the brain, moderate stress has been shown to facilitate learning in young animals. It is unknown if stress facilitates or impairs learning in an aged animal. In this study, the effect of mild stress on learning and task retention (1 ...
Helbing Willem A - - 2010
Heart failure is an important problem after surgical correction of congenital heart disease. Timely recognition may be difficult. Recent developments in exercise testing and stress-imaging may change the management of patients with congenital heart disease. Exercise tests are commonly used in the follow-up of patients with congenital heart disease. Maximal ...
Nyhuis Tara J TJ Department of Psychology and Neuroscience, University of Colorado, Boulder, CO 80309, USA. - - 2010
Stress exacerbates several physical and psychological disorders. Voluntary exercise can reduce susceptibility to many of these stress-associated disorders. In rodents, voluntary exercise can reduce hypothalamic-pituitary-adrenocortical (HPA) axis activity in response to various stressors as well as upregulate several brain neurotrophins. An important issue regarding voluntary exercise is whether its effect ...
Waters R Parrish RP Department of Neurosciences, The Medical University of South Carolina, Charleston, SC 29425, USA. - - 2010
Physical exercise dampens an individual's stress response and decreases symptoms of anxiety and depression disorders. While the extrinsic relationship of exercise and psychological state is established, their intrinsic relationship is unresolved. We investigated the potential intrinsic relationship of exercise with stress responsiveness using NIH rats bidirectionally selected for intrinsic endurance ...
Coelho Ricardo Weigert - - 2010
The purpose was three-fold: (1) to investigate the effect of baseline, precompetition, and postcompetition stress on salivary cortisol levels in top-ranking Brazilian wrestlers (N = 17) participating in a national competition; (2) to estimate correlations among three stress measures (perceived stress, salivary cortisol, and physiological stress reaction); and (3) to ...
Turner A I - - 2010
Sex differences in the stress-induced activity of the hypothalamo-pituitary-adrenal axis in sheep appear to be dependent on the stressor encountered and occur irrespective of the presence of gonadal steroids. We tested the hypotheses that cortisol responses to exercise, endotoxin, wetting (experiment 1), and isolation/restraint (experiment 2) stress differ between gonadectomized ...
Laitano Orlando - - 2010
Combined heat stress, dehydration, and exercise is associated with enhanced oxidative stress in humans, but the separate and combined effects of heat stress and exercise on circulatory markers of oxidative stress without the influence of dehydration remain uncertain. The purpose of this study was to determine the effects of whole ...
Feldman Greg G Simmons College, Department of Psychology, Park Science Center, 300 the Fenway, Boston, MA 02114, USA. - - 2010
Decentering has been proposed as a potential mechanism of mindfulness-based interventions but has received limited empirical examination to date in experimental studies comparing mindfulness meditation to active comparison conditions. In the present study, we compared the immediate effects of mindful breathing (MB) to two alternative stress-management techniques: progressive muscle relaxation ...
Keogh Justin W L - - 2010
The purpose of this study was to (a) characterize the temporal aspects of a popular strongman event, the tire flip; (b) gain some insight into the temporal factors that could distinguish the slowest and fastest flips; and (c) obtain preliminary data on the physiological stress of this exercise. Five resistance-trained ...
Campeau S - - 2010
Regular physical exercise is beneficial for both physical and mental health. By contrast, stress is associated with deleterious effects on health and there is growing evidence that regular physical exercise counteracts some of the effects of stress. However, most previous studies have suggested that prior exercise does not alter the ...
Liu Xin - - 2010
Exercise could play a beneficial role in stress, but its underlying mechanism especially about heat shock protein 70 (HSP70) and inducible nitric oxide synthase (iNOS) in brain has not been fully clarified. Moreover, few studies have investigated swimming exercise and its effects on the combined stress of both chronic and ...
Budde Henning - - 2010
Little is known about the influence of physical and cognitive stress on the concentration of steroid hormones (SHs) in a school setting. Forty high school students from the 9th grade were randomly assigned to two intervention groups: physical and cognitive stress. Saliva collection took place before (pre-test) and after (post-test) ...
Huang Chun-Jung - - 2010
The purpose of this study was to examine the changes in heart rate (HR), catecholamines (norepinephrine [NE] and epinephrine [EPI]), pro-inflammatory cytokines (interleukin-2 [IL-2] and interleukin-6 [IL-6]), and lymphocytes (CD8+ and CD56+) in firefighters exposed to a decision-making challenge (firefighting strategies and tactics drill) while participating in moderate intensity exercise. ...
Salim Samina - - 2010
Recent work has suggested correlation of oxidative stress with anxiety-like behavior. There also is evidence for anxiolytic effects of physical exercise. However, a direct role of oxidative stress in anxiety is not clear and a protective role of physical exercise in oxidative stress-mediated anxiety has never been addressed. In this ...
Hargard?ttir H - - 2010
OBJECTIVE: Exercise testing can be used (i) to evaluate functional limitations of systemic sclerosis (SSc) and (ii) to study whether the inflammatory and oxidative systems are activated after a physical stimulus. The aim of this study was to determine exercise-induced inflammatory and oxidative responses in SSc compared with healthy subjects. ...
Puterman Eli - - 2010
Chronic psychological stress is associated with detrimental effects on physical health, and may operate in part through accelerated cell aging, as indexed by shorter telomeres at the ends of chromosomes. However, not all people under stress have distinctly short telomeres, and we examined whether exercise can serve a stress-buffering function. ...
Shcheslavskaya Olga V OV Division of Behavioral Medicine, Department of Psychiatry, Columbia University Medical Center, New York, NY 10032, USA. - - 2010
To investigate the effect of age on heart rate recovery (HRR) from cognitive challenge. Aging is an independent risk factor for the development of cardiovascular disease. HRR from exercise is an established predictor of cardiac morbidity and mortality, and evidence suggests that HRR from cognitive challenge is predictive of cardiac ...
Bloomer Richard J - - 2009
An individual's sex and exercise training status may influence oxidative stress. No study has compared postprandial oxidative stress in exercise-trained and untrained men and women. PURPOSE: To compare oxidative stress biomarkers and triglycerides (TAG) in 16 trained and 16 untrained men and women after ingestion of a high-fat meal. METHODS: ...
Ray Chester A - - 2010
The effects of aerobic exercise training (ET) on muscle sympathetic nerve activity (MSNA) and renal vascular responses to mental stress (MS) have not been determined in humans. We hypothesized that aerobic ET would reduce MSNA and renal vasoconstriction during MS. MSNA, mean arterial pressure (MAP), heart rate, renal blood flow ...
Arida Ricardo M - - 2009
Stress has been considered the most frequently self-reported precipitant of seizures in people with epilepsy. The literature documents that physical stress, that is, physical exercise, can have beneficial effects in people with epilepsy. In view of evidence indicating that sensitivity to stress is reduced after a physical exercise program, physical ...
Gerber Markus - - 2009
BACKGROUND: Understanding how exercise influences health is important in designing public health interventions. At present, evidence suggests that there is a positive relationship between exercise and health. However, whether this relationship is partly due to the stress-moderating impact of exercise has been less frequently investigated although more and more people ...
Trousselard Marion - - 2009
INTRODUCTION: The stress effects induced by diverse military scenarios are usually studied under tightly controlled conditions, while only limited research has addressed realistic scenarios. This study was designed to compare the effects of two levels of realism in stressful training for escape from a sunken submarine. METHODS: Thirteen qualified submariners ...
Booth F W - - 2009
Two major issues are presented. First, a challenge is made by us that a misunderstanding of physiology has led to incomplete or wrong functional designations of genes in some cases. Normal physiological processes are dynamic, integrated and periodic, and, therefore, it is difficult to define normal physiological function by looking ...
Möhlenkamp Stefan - - 2009
BACKGROUND: Exercise capacity and heart rate profile parameters obtained from exercise stress testing as well as the subclinical coronary atherosclerosis burden from cardiac CT have been suggested to improve cardiovascular (CV) risk stratification beyond traditional risk factors (RF) in persons at risk of CV events. AIM: To study the association ...
Milani Richard V - - 2009
BACKGROUND: Exercise training reduces mortality in patients with coronary artery disease. Behavioral characteristics, including depression, hostility, and overall psychosocial stress, have been shown to be independent risk factors for recurrent myocardial infarction and death in these patients. Exercise training can reduce these high-risk behaviors, but it remains uncertain as to ...
Young J F - - 2009
One factor affecting meat quality is pre-slaughter stress. We investigated the effects of exercise stress on drip loss and toughness in relation to resting times of 0, 1 or 3h following exercise on a treadmill. This exercise stress was regarded as combined physical and physiological stress. Exercise stress increased the ...
Dattilo Giuseppe - - 2011
Stress echocardiography is today the best possible imaging choice in the field of noninvasive diagnosis of coronary artery disease. Dobutamine stress echocardiography (DSE) and Dobutamine-atropine stress echocardiography (DASE) have been studied. Handgrip (HG) exercise has been rarely studied in stress echocardiography. We present a case of the use of isometric ...
Jouven Xavier - - 2009
AIMS: The aim of this study involves the early identification, among apparently healthy individuals, of those at high risk for sudden cardiac death. We tested the hypothesis that individuals who respond to mild mental stress in preparation for exercise test with the largest heart rate increases might be at highest ...
Toribatake Y - - 2009
AIM: In the detection of peripheral arterial disease (PAD), the post-exercise ankle brachial index (ABI) using a treadmill is useful although time consuming. We developed a stress-loading device that induces fatigue in the calf muscles while remaining in the supine position, which is designed to reduce delay between completion of ...
Bjällmark Anna - - 2009
BACKGROUND: Tissue Velocity Imaging (TVI) is a method for quantitative analysis of longitudinal myocardial velocities, which can be used during exercise and pharmacological stress echocardiography. It is of interest to evaluate cardiac response to different types of stress tests and the differences between upright and supine bicycle exercise tests have ...
Heinrich A - - 2009
The objectives were to determine the duration of the stress response associated with cautery dehorning and to assess the effectiveness of the nonsteroidal anti-inflammatory drug meloxicam (Metacam, 20 mg/mL solution for injection) for reducing that response. Sixty Holstein heifer calves were blocked by age and randomly assigned to receive an ...
Marsden Alison L - - 2009
OBJECTIVES: The objective of this work is to evaluate the hemodynamic performance of a new Y-graft modification of the extracardiac conduit Fontan operation. The performance of the Y-graft design is compared to two designs used in current practice: a t-junction connection of the venae cavae and an offset between the ...
Yamazaki Fumio - - 2009
Cutaneous vascular responses to mental arithmetic (MA) and handgrip exercise (HG) were studied independently and combined at different local skin temperatures (T (loc)). MA and HG induced (P < 0.05) vasoconstrictor responses in glabrous and nonglabrous skin at a higher level of T (loc), resulting in a nonadditive effect of ...
Toribatake Y - - 2009
AIM: In the detection of peripheral arterial disease (PAD), the post-exercise ankle brachial index (ABI) using a treadmill is useful although time consuming. We developed a stress-loading device that induces fatigue in the calf muscles while remaining in the supine position, which is designed to reduce delay between completion of ...
Su Jenny C - - 2009
Did the September 11 terrorist attacks elicit a subsequent increase in traffic fatalities? Gigerenzer (2004) argued that decreases in flying and increases in driving in the 3 months after the attacks led to 353 "surplus" traffic fatalities. We applied a more systematic analysis to the same data and found no ...
Lee Y K YK Faculty of Electrical Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Malaysia. - - 2009
Previous works on the effects of salivary alpha amylase in respond to various stressors report encouraging findings on it being a good indicator of stress. Ellestad protocol is a clinical procedure to screen for coronary artery disease by introducing exercise induced physical stress. If a salivary based biomarker profile in ...
Fenty-Stewart Nicola N Department of Kinesiology, School of Public Health, University of Maryland, College Park, MD, USA. - - 2009
Abstract Angiotensin II (AngII), via the AngII type 1 receptor (AT(1)R), contributes to oxidative stress. Aerobic exercise training (AEXT) reduces the risk of cardiovascular (CV) disease, presumably by reducing the grade of oxidative stress. We investigated the independent and combined influence of the AGTR1 A1166C and -825 T/A polymorphisms on ...
Fokidis H Bobby - - 2009
As cities expand worldwide, understanding how species adapt to novel urban habitats will become increasingly important to conservation. The adrenocortical stress response enables vertebrates to cope with novel environmental challenges to homeostasis. We examined total and estimates of free baseline and stress-induced corticosterone (CORT) concentrations and CORT binding globulin (CBG) ...
Filaretova L P - - 2008
It is known that preconditioning stress may attenuate stress-induced gastric injury and that this effect is mediated by prostaglandins. In the present study we investigated the contribution of glucocorticoids to the gastroprotective effect of preconditioning stress. The effects of mild stress on gastric erosion caused by severe stress were compared ...
Chida Yoichi - - 2008
This meta-analysis included 729 studies from 161 articles investigating how acute stress responsivity (including stress reactivity and recovery of hypothalamic-pituitary-adrenal [HPA] axis, autonomic, and cardiovascular systems) changes with various chronic psychosocial exposures (job stress; general life stress; depression or hopelessness; anxiety, neuroticism, or negative affect; hostility, aggression, or Type-A behavior; ...
Souza Wanderson F - - 2008
Our study evaluated the relationship between positive affect (PA) and negative affect (NA) traits on the development of posttraumatic stress symptoms (PTSS) among peacekeepers. A longitudinal study with 138 army personnel deployed to a peacekeeping mission in Haiti was conducted. An instrument for measuring PA and NA traits was used ...
Sasse Sarah K SK Department of Psychology, University of Colorado, Boulder, CO 80309, USA. - - 2008
Voluntary exercise is associated with the prevention and treatment of numerous physical and psychological illnesses, yet the mechanisms by which it confers this protection remain unclear. In contrast, stress, particularly under conditions of prolonged or repeated exposure when glucocorticoid levels are consistently elevated, can have a devastating impact on health. ...
Ng Vivian - - 2008
11 healthy adult graduate students were studied on two separate occasions 2 wk. apart at the same time of day. Self-rating of perceived stress and serial measurements of salivary alpha-amylase levels were performed at T1 = 15 min. before, T2 = 1 min. before, T3 = 1 min. after, and ...
Angerer Peter - - 2008
Firefighters face a highly increased risk of sudden cardiac death during fire suppression. Medical examinations and physical performance tests are used to screen endangered firefighters. The aim of this study was to determine cardiocirculatory and thermal strain during fire suppression in firefighters and compare it with the strain during medical ...
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