Search Results
Results 1 - 50 of 1052
1 2 3 4 5 6 7 8 9 10 >
Lamarche Dallon T DT Human and Environmental Physiology Research Unit School of Human Kinetics, University of Ottawa, Ottawa, Ontario, - - 2014
To examine the effect of ingested water temperature on the heat balance during exercise as assessed by direct calorimetry. Ten healthy males (25±4 years) cycled at 50% VO2peak [equivalent rate of metabolic heat production (M-W) of 523±84W] for 75 min in thermocomfortable conditions (25°C, 25% relative humidity) while consuming either ...
Ciccolo Joseph T JT Department of Biobehavioral Sciences, Teachers College, Columbia University, 525 West 120th St., New York, NY 10027, - - 2014
Despite recent declines in the rates of cigarette smoking, smoking remains prevalent among individuals with lower income, less education, and those with mental illness or HIV. Exercise is promoted as an aid to smoking cessation; however, the evidence for this recommendation is equivocal. To date, the majority of studies have ...
Arbak Peri P Department of Chest Diseases, Duzce University Medical Faculty, Düzce, - - 2014
Aim. This study aimed to assess the long-term respiratory effects of tear gases among the subjects with history of frequent exposure. Materials and Methods. A questionnaire by NIOSH and pulmonary function tests was performed in 93 males exposed to the tear gases frequently and 55 nonexposed subjects. Results. The mean ...
Baker Sarah E SE Department of Pharmacy Practice and Science, University of Arizona, Tucson, AZ, - - 2012
Epithelial Na channels (ENaCs) play a crucial role in ion and fluid regulation in the lung. In cystic fibrosis (CF), Na hyperabsorption results from ENaC overactivity, leading to airway dehydration. Previous work has demonstrated functional genetic variation of SCNN1A (the gene encoding the ENaC α-subunit), manifesting as an alanine (A) ...
Woodruff Sarah J - - 2012
Female athletes should aim to achieve energy balance in order to maintain health and have a high performance output. The purpose of this study was to investigate energy availability (EA) among members of a medium sized Canadian Interuniversity Sport (CIS) women's volleyball team, and to describe exercise energy expenditure (ExEE) ...
Bos I - - 2012
Exercise improves cognitive function, and brain-derived neurotrophic factor (BDNF) plays a key role in this process. We recently reported that particulate matter (PM) exposure negatively contributed to the exercise-induced increase in human serum BDNF concentration. Furthermore, PM exposure is associated with neuroinflammation and cognitive decline. The aim of this study ...
Makaje N - - 2012
The aims of this study were to examine and compare the physiological demands and activity profiles of players at different competitive levels during futsal match play. Fifteen professional futsal players (elite group) and 15 university futsal players (amateur group) participated in the study. The players in each group were divided ...
Ichinose Masashi - - 2012
We tested whether mild and moderate dynamic exercise and muscle metaboreflex activation (MMA) affect dynamic baroreflex control of heart rate (HR) and cardiac output (CO), and the influence of stroke volume (SV) fluctuations on CO regulation in normal (N) and pacing-induced heart failure (HF) dogs by employing transfer function analyses ...
Julen Castellano - - 2012
ABSTRACT: The aim of the study was to examine the extent to which changing the game format (possession play vs. regulation goals and goalkeepers vs. small goals only) and the number of players (3 vs. 3, 5 vs. 5 and 7 vs. 7) influenced the physiological and physical demands of ...
Antonelli Andrea - - 2012
Exercise in healthy subjects is usually associated with progressive bronchodilatation. Though the decrease in vagal tone is deemed to be the main underlying mechanism, activation of bronchial β(2)-receptors may constitute an additional cause. To examine the contribution of β(2)-adrenergic receptors to bronchodilatation during exercise in healthy humans, we studied 15 ...
O'Donovan C - - 2012
To examine the energy expenditure and heart rate response while playing active video games, and the effect of gaming experience on energy expenditure. Cross-sectional study. Twenty-eight healthy participants (18 male, age 19 to 27 years) played either Wii Sports Boxing, Tennis and Baseball, or Wii Sports Boxing and Wii Fit ...
Haack Karla K V - - 2012
Although exercise training (ExT) is an important therapeutic strategy for improving quality of life in patients with chronic heart failure (CHF), the central mechanisms by which ExT is beneficial are not well understood. The angiotensin II type 1 receptor (AT1R) plays a pivotal role in the development of CHF and ...
Peters Donna-Marie - - 2012
This article describes the values and practices of a water exercise group of middle-class, middle-aged and senior female predominantly African American vacationing members of the Polar Bears of Martha's Vineyard, Massachusetts. It focuses on their holistic approach to health-physical, emotional, and spiritual-and their implementation of this approach through mentoring, play, ...
van der Cammen-van Zijp M H M - - 2012
Little is known about long-term effects of neonatal intensive care on exercise capacity, physical activity, and fatigue in term borns. We determined these outcomes in 57 young adults, treated for neonatal respiratory failure; 27 of them had congenital diaphragmatic hernia with lung hypoplasia (group 1) and 30 had normal lung ...
Kelly David M - - 2012
ABSTRACT: The use of sports specific technical practices as a physical training stimulus has increased in recent years in soccer. Such approaches, while effective, can produce different levels of physiological strain in the individual players within the session thereby limiting the usefulness of the training session for all players. The ...
Eliakim Michal - - 2012
ABSTRACT: Motivational music (music that stimulates physical activity) was previously shown to enhance the recovery from intense exercise. The aim of the present study was to isolate the effect of rhythm (presumed to be the most effective factor of motivational music), on the recovery from intense exercise. Ten young adult ...
Singh D K A - - 2012
Objective The prospective pre-post control study was designed to evaluate the effect of introducing balance-focused interactive virtual-reality games to community-dwelling older women to improve their agility, balance and functional mobility. Method The study was set in a senior citizens' club in Cheras, Kuala Lumpur, Malaysia. The participants were 36 community-dwelling ...
Liao Yi-Hung - - 2012
This study aimed to determine the role of DHEA-S in coping against the exercise training mixing aerobic and resistance components. During 5-day successive exercise training, 16 young male participants (19.2 ± 1.2 years) received either a placebo (flour capsule) or DHEA (100 mg/day) in a double-blinded and placebo-controlled design. Oral DHEA supplementation significantly increased ...
Jastrzębski Zbigniew - - 2012
ABSTRACT:: The aim of this study was to examine the effects of applied training loads on the aerobic capacity, speed, power and speed endurance of young soccer players during one soccer season. The participants in the study were nineteen young male soccer players (age: 16.61 ± 0.31 yrs; weight: 64.28 ...
Filaire Edith - - 2012
Reactive oxygen species (ROS) are well recognised for playing a dual role as both deleterious and beneficial species. They are normally generated by tightly regulated enzymes. ROS overproduction arises either from mitochondrial electron transport chain or excessive stimulation of NAD(P)H resulting in oxidative stress, a deleterious process that can be ...
Vogiatzis Ioannis - - 2012
In healthy humans, cerebral oxygen desaturation during exercise affects motor unit recruitment, whilst oxygen supplementation enhances cerebral oxygenation and work capacity. It remains unknown whether in patients with COPD the well documented improvement in exercise tolerance with oxygen supplementation may also be partly due to the increase in cerebral oxygenation.By ...
Boushel Robert C - - 2012
Nitric oxide (NO) and prostaglandins (PG) together play a role in regulation blood flow during exercise. NO also regulates mitochondrial oxygen consumption through competitive binding to cytochrome c oxidase. Indomethacin both uncouples and inhibits the electron transport chain in a concentration-dependent manner, and thus inhibition of NO and PG may ...
Brito João - - 2012
This study aimed to analyze the influence of the playing surface on movement pattern, physical loading, perceived exertion, and fatigue development during small-sided recreational soccer games. Time-motion, heart rate, blood lactate, and perceived exertion were measured for 16 recreational players aged 22 (range: 19-35)yrs. During 5-a-side soccer games on 3 ...
Milman Sofiya - - 2012
Hypoglycemia and exercise both induce the release of β-endorphin, which plays an important role in the modulation of the autonomic response during subsequent events. Because opioid receptor (OR) blockade during antecedent hypoglycemia has been shown to prevent hypoglycemia-associated autonomic failure, we hypothesized that OR blockade during exercise would prevent exercise-associated ...
Ren Jimin J University of Texas Southwestern Medical Center, Dallas, Texas 75390-8568, - - 2013
A trimethylamine (TMA) moiety is present in carnitine and acetylcarnitine, and both molecules play critical roles in muscle metabolism. At 7 T, the chemical shift dispersion was sufficient to routinely resolve the TMA signals from carnitine at 3.20 and from acetylcarnitine at 3.17 ppm in the (1)H-MRS (Magnetic Resonance Spectroscopy) ...
Douris Peter C - - 2012
ABSTRACT: Douris, PC, McDonald, B, Vespi, F, Kelley, NC, and Herman, L. Comparison between Nintendo Wii Fit aerobics and traditional aerobic exercise in sedentary young adults. J Strength Cond Res 26(4): 1052-1057, 2012-Exergaming is becoming a popular recreational activity for young adults. The purpose was to compare the physiologic and ...
Gahunia Harpal K - - 2012
This review primarily focuses on how the macromolecular composition and architecture of articular cartilage and its unique biomechanical properties play a pivotal role in the ability of articular cartilage to withstand mechanical loads several magnitudes higher than the weight of the individual. Current findings on short-term and long-term effects of ...
Trachtman Howard - - 2012
Background: Morning report is a time-honored part of the medical day. However, recent changes in house officer training and staffing raise questions about the educational efficacy of this daily conference. Summary: As it is currently conducted, Morning Report is an exercise in role playing that fails to achieve its main ...
Laforêt Pascal - - 2012
To determine whether impaired exercise capacity in neutral lipid storage disease with myopathy is solely caused by muscle weakness or whether a defect in energy metabolism (blocked fat oxidation) may also play a role. We studied a 37-year-old woman with neutral lipid storage disease with myopathy, who cycled while lipid ...
Yaicharoen Pongson - - 2012
Abstract Lack of benefit of warm up on prolonged intermittent-sprint performance has been proposed to be due to use of a pacing strategy by participants. To investigate this, twelve participants performed four cycle trials that consisted of either prolonged intermittent-sprint performance (80 min) or single-sprint performance (4 s), with or without a ...
Saunders Bryan - - 2012
The aim of this study was to examine the effect of β-alanine supplementation on repeated sprint performance during an intermittent exercise protocol designed to replicate games play. Sixteen elite and twenty non-elite game players performed the Loughborough Intermittent Shuttle Test (LIST) on two separate occasions. Trials were separated by 4 weeks ...
McClure Philip - - 2012
The scapula plays an important role in shoulder function and requires both significant mobility and stability. Normal motion is 3-dimensional, and during arm elevation consists of upward rotation, posterior tilting, and external rotation as well as clavicular elevation and retraction. Examination should include visual observation, symptom alterations tests, testing of ...
Schwandt Marika - - 2012
: To establish the feasibility and effect of an aerobic exercise intervention on symptoms of depression among individuals with traumatic brain injury. : A pre-post single group. : our community dwelling participants (>11 months postinjury) with residual physical impairment recruited from an outpatient clinic. : 12-week aerobic exercise program. : ...
Taylor Lem W - - 2012
Taylor, LW, Wilborn, CD, Kreider, RB, and Willoughby, DS. Effects of resistance exercise intensity on extracellular signal-regulated kinase 1/2 mitogen-activated protein kinase activation in men. J Strength Cond Res 26(3): 599-607, 2012-Extracellular signal-regulated kinase (ERK) 1/2 signaling has been shown to be increased after heavy resistance exercise and suggested to ...
Munns Suzanne L - - 2012
Crocodilians use a combination of three muscular mechanisms to effect lung ventilation: the intercostal muscles producing thoracic movement, the abdominal muscles producing pelvic rotation and gastralial translation, and the diaphragmaticus muscle producing visceral displacement. Earlier studies suggested that the diaphragmaticus is a primary muscle of inspiration in crocodilians, but direct ...
Shi Lijun - - 2012
Large-conductance Ca(2+)-activated K(+) (BK(Ca)) channels play a critical role in regulating cellular excitability and vascular tone. Exercise training showed reversible beneficial effects on cardiovascular systems with an improvement of vascular functions. This study investigated the effects of exercise training volume on vascular function and BK(Ca) channel activity in thoracic aorta ...
Dellal A - - 2012
The aim of this investigation was to compare the effects of common rule changes on technical and physical demands for elite soccer players in five playing positions during various 4-min small-sided games (SSGs) in comparison to 11-a-side matches. Forty international players classified into five positional roles participated in the study ...
Dellal A - - 2012
The aim of the present study was to examine the physical and technical activity during different periods within small-sided soccer games (SSGs). 20 elite players completed 3 different SSGs (2-a-side, 3-a-side and 4-a-side games) in which the number of ball touches per individual possession was fixed at a maximum of ...
Constantin-Teodosiu Dumitru D School of Biomedical Sciences, Medical School, University of Nottingham, Nottingham, UK. - - 2012
High-fat feeding inhibits pyruvate dehydrogenase complex (PDC)-controlled carbohydrate (CHO) oxidation, which contributes to muscle insulin resistance. We aimed to reveal molecular changes underpinning this process in resting and exercising humans. We also tested whether pharmacological activation of PDC overrides these diet-induced changes. Healthy males consumed a control diet (CD) and ...
Ando Soichi - - 2012
Strenuous exercise may have the detrimental effects on visual perception. However, it is unclear whether visual resolution is related to the detrimental effects on visual perception. The purpose of this study was to examine whether the effects of strenuous exercise on visual perception are dependent on visual resolution. Given that ...
Reinthal Ann - - 2012
Introduction. Stroke is a leading cause of disability in healthy adults. The purpose of this pilot study was to assess the feasibility and outcomes of a novel video gaming repetitive practice paradigm, (ENGAGE) enhanced neurorehabilitation: guided activity-based gaming exercise. Methods. Sixteen individuals at least three months after stroke served as ...
Samani A - - 2012
Eleven healthy volunteers took part in three sessions where computer work was performed for 10 min in each session. The recordings were made on two consecutive days. After the first session, the subjects underwent a series of high intensity eccentric exercises of shoulder elevation to induce muscle soreness. The second ...
Van Tassell Benjamin W - - 2012
Heart failure (HF) is a complex clinical syndrome characterized by impaired cardiac function and poor exercise tolerance. Enhanced inflammation is associated with worsening outcomes in HF patients and may play a direct role in disease progression. Interleukin-1β (IL-1β) is a pro-inflammatory cytokine that becomes chronically elevated in HF and exerts ...
Arida Ricardo Mario - - 2011
Exercise has been found to influence molecular systems important for maintaining neural function and plasticity as well as treatment of neurologic disorders. The stimuli required to elicit plasticity are thought to be activity dependent. Several protocols of physical exercise have been used to explore its effects on brain function. However, ...
Voss Michelle W - - 2011
This is a brief review of current evidence for the relationships between physical activity and exercise and the brain and cognition throughout the life span in non-pathological populations. We focus on the effects of both aerobic and resistance training and provide a brief overview of potential neurobiological mechanisms derived from ...
Stephenson Mary C MC Mary C Stephenson, Susan T Francis, Peter G Morris, The Sir Peter Mansfield Magnetic Resonance Centre, School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, United - - 2011
To discuss the advantages of ultra-high field (7T) for (1)H and (13)C magnetic resonance spectroscopy (MRS) studies of metabolism. Measurements of brain metabolites were made at both 3 and 7T using (1)H MRS. Measurements of glycogen and lipids in muscle were measured using (13)C and (1)H MRS respectively. In the ...
Matsui Takashi - - 2011
Brain glycogen could be a critical energy source for brain activity when the glucose supply from the blood is inadequate (hypoglycaemia). Although untested, it is hypothesized that during prolonged exhaustive exercise that induces hypoglycaemia and muscular glycogen depletion, the resultant hypoglycaemia may cause a decrease in brain glycogen. Here,we tested ...
Miller Delyana I - - 2011
Physical exercise and fitness have been proposed as potential factors that promote healthy cognitive aging. Support for this hypothesis has come from cross sectional, longitudinal, and intervention studies. In the present review, we discuss several methodological problems that limit the conclusions of many studies. The lack of consensus on how ...
Feng Qiushi - - 2011
BACKGROUND: Surveillance of physical activity trends in older adults is limited in developing nations. This study examined 10-year leisure-time physical activity trends of elderly residents of Shanghai, the largest Chinese city with the nation's highest proportion of senior citizens. METHODS: The study used panel data from the Shanghai Longitudinal Survey ...
Jessen Niels - - 2011
Exercise and weight loss are cornerstones in the treatment and prevention of type 2 diabetes, and both interventions function to increase insulin sensitivity and glucose uptake into skeletal muscle. Studies in rodents demonstrate that the underlying mechanism for glucose uptake in muscle involves site-specific phosphorylation of the Rab-GTPase-activating proteins AS160 ...
1 2 3 4 5 6 7 8 9 10 >