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Nindl Bradley C BC 1Military Performance and 2Military Nutrition Divisions, U.S. Army Research Institute of Environmental Medicine, Natick, - - 2014
The pulsatile secretion pattern of growth hormone (GH) is an important parameter of GH action at peripheral tissues and more information is needed on how exercise impacts GH secretion. This study hypothesized that both aerobic and resistance exercise would exhibit dose-response relationships with respect to exercise duration and 20-h post-exercise ...
da Silva Davi Vieira Teixeira DV Chemistry Institute, Federal University of Rio de Janeiro, Rio de Janeiro, - - 2014
Nutritional supplements based on the amino acid L-arginine have been hypothesized to improve exercise performance by increasing levels of insulin and growth hormone (GH). Changes of these parameters in response to L-arginine supplementation may clarify the mechanisms underlying its putative physiological effects on physical performance. The aim of the study ...
Galy Olivier O Laboratory ACTES, (EA 3596: Department of Physiology), Faculty of Physical Activity and Sports, University of Guadeloupe, Pointe à Pitre, France; Laboratory CNEP (EA 4242), University of New Caledonia, Nouméa, New - - 2014
Growth hormone (GH) may stimulate water loss during exercise by activating sweating. This study investigated GH secretion and water loss during sequential cycling and running, taking postural changes into account. The two exercise segments had similar durations and were performed at the same relative intensity to determine their respective contributions ...
El Kafy Ehab Mohamed Abd EM Department of Physical Therapy for Disturbances of Growth and Developmental Disorders in Children and Its Surgery (Dr Kafy), Faculty of Physical Therapy, Cairo University, Cairo, Egypt; Physical Therapy Department (Drs Kafy and Helal), Faculty of Applied Medical Sciences, Umm Al Qura University, Makkah, Saudi - - 2014
To examine effects of a rowing exercise regimen versus a chest physical therapy program on pulmonary function in children with Down syndrome. Twenty-nine participants of both sexes, between 8 to 12 years of age, participated in this study. They were assigned randomly into 2 study groups. The first group (A) ...
Osterling Kristin K School of Physiotherapy, Dalhousie University, Halifax, NS, - - 2014
The objective of this systematic review was to determine whether people with moderate to severe COPD who are participating in pulmonary rehabilitation and exercising at high intensity demonstrate the changes in ventilatory parameters that are associated with decreased dyspnea. The authors searched EMBASE, The Cochrane Library, and CINAHL databases up ...
Larson Janet L JL Division of Acute, Critical and Long-Term Care Programs, School of Nursing, University of Michigan, Ann Arbor, MI, USA ; Department of Biobehavioral Health Science, College of Nursing, University of Illinois at Chicago, Chicago, IL, - - 2014
People with chronic obstructive pulmonary disease lead sedentary lives and could benefit from increasing their physical activity. The purpose of this study was to determine if an exercise-specific self-efficacy enhancing intervention could increase physical activity and functional performance when delivered in the context of 4 months of upper body resistance ...
Keusch Stephan S Clinic of Pulmonology, University Hospital of Zurich, 8091 Zurich, - - 2014
Data on exercise pulmonary hemodynamics in healthy people and patients with pulmonary hypertension (PH) are rare. We analyzed exercise right heart catheterization (RHC) data in a symptomatic collective referred with suspected PH to characterize the differential response by diagnostic groups, to correlate resting with exercise hemodynamics, and to evaluate safety. ...
Nardini Stefano S Pulmonary and TB Unit, Vittorio Veneto General Hospital, Vittorio Veneto, TV - - 2014
The most recent guidelines define COPD in a multidimensional way, nevertheless the diagnosis is still linked to the limitation of airflow, usually measured by the reduction in the FEV1/FVC ratio below 70%. However, the severity of obstruction is not directly correlated to symptoms or to invalidity determined by COPD. Thus, ...
Ijiri Naoki N Department of Respiratory Medicine, Graduate School of Medicine, Osaka City University, Osaka, - - 2014
New parameters in the 6-minute walk test (6MWT) are required for comprehensive analysis of exercise capacity in patients with chronic obstructive pulmonary disease (COPD). The aim of the present study was to apply a novel index, the desaturation distance ratio (DDR), to clinical research on COPD as an estimate of ...
Wu Weibing W Department of Sports Medicine, Shanghai University of Sport, Shanghai, People's Republic of - - 2014
Tai Chi is a traditional Chinese mind-body exercise that has been widely practiced in the People's Republic of China for many centuries. This exercise has also been applied as a training modality in pulmonary rehabilitation programs for stable chronic obstructive pulmonary disease (COPD). This systematic review and meta-analysis aimed to ...
Chen Yong-Cun YC School of Physical Education, Beijing Information Science & Technology University Beijing 100192, - - 2014
To research the therapeutic effect of loaded deep inhale training on mild and moderate COPD smokers. 30 mild and moderate COPD smokers were divided into the observation group and the control group at random. The observation group underwent loaded deep inhale training in the morning and in the evening twice ...
Lee Annemarie L AL Physiotherapy, Alfred Health, Melbourne, VIC, Australia ; Institute for Breathing and Sleep, Austin Health, Melbourne, VIC, Australia ; Westpark Healthcare Centre, ON, - - 2014
Exercise intolerance, exertional dyspnea, reduced health-related quality of life, and acute exacerbations are features characteristic of chronic obstructive pulmonary disease (COPD). Patients with a primary diagnosis of COPD often report comorbidities and other secondary manifestations, which diversifies the clinical presentation. Pulmonary rehabilitation that includes whole body exercise training is a ...
Boutou Afroditi K AK The NIHR Respiratory Biomedical Research Unit , Royal Brompton & Harefield NHS Foundation Trust and Imperial College , London , - - 2014
Pulmonary Rehabilitation (PR) is an important treatment for patients with chronic obstructive pulmonary disease (COPD) but it is not established whether any baseline parameter can predict response or compliance. To identify whether baseline measures can predict who will complete the programme and who will achieve a clinically significant benefit from ...
Breda Ana Paula AP Pulmonary Department, Heart Institute University of São Paulo Medical School, Sao Paulo, - - 2014
Pulmonary arterial hypertension is a progressive disease that is characterized by dyspnea and exercise intolerance. Impairment in skeletal muscle has recently been described in PAH, although the degree to which this impairment is solely determined by the hemodynamic profile remains uncertain. The aim of this study was to verify the ...
Kim JinHong J Department of Physical Therapy, Sahmyook University, Seoul, - - 2014
Background Because respiratory muscle function plays a strong role in exercise capacity and cardiopulmonary response to exercise, systematic training and measurement of respiratory muscle function should be considered in stroke patients. The purpose of this study was to determine whether an individualized respiratory muscle training device combined with conventional physical ...
Trilk Jennifer L JL Exercise is Medicine Education Committee, Assistant Professor, Department of Biomedical Sciences, University of South Carolina School of Medicine Greenville, Greenville, South Carolina, - - 2013
Educating medical students and other health professionals in training on the importance of healthy lifestyles for prevention and treatment of disease is essential to transforming healthcare. At the University of South Carolina School of Medicine Greenville (USC SOM Greenville), we are incorporating the 'Exercise is Medicine' Knowledge, Skills and Abilities ...
Shaner Aaron A - - 2013
Resistance exercise can acutely increase concentrations of circulating neuroendocrine factors, but the effect of mode on this response is not established. The purpose of this study was to examine the effect of resistance exercise selection on the acute hormonal response using similar lower-body multi-joint movement free weight and machine weight ...
Forbes Scott C - - 2013
Acute resistance exercise and L-arginine have both been shown to independently elevate plasma growth hormone (GH) concentrations; however, their combined effect is controversial. The purpose was to investigate the combined effects of resistance exercise and L-arginine supplementation on plasma L-arginine, GH, GH secretagogues, and IGF-1 in strength trained participants. Fourteen ...
Alvares Thiago Silveira TS Nucleus of Basic Nutrition and Dietetics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil; Department of Biochemistry, Chemistry Institute, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil. Electronic address: - - 2014
It has been hypothesized that l-arginine improves exercise performance by increasing nitric oxide synthesis and levels of insulin and growth hormone (GH). Metabolic and hormonal responses to chronic l-arginine supplementation may clarify the mechanisms underlying its putative physiologic effects on physical performance. Therefore, the aim of this study was to ...
Oöpik Vahur - - 2013
The major objective of this study was to elucidate the effect of heat acclimation on blood growth hormone (GH) response to moderate intensity exhausting exercise in the heat. In addition, the potential relationship between inter-individual differences in GH response to exercise and variability in exercise-induced sweat loss was investigated. Twenty ...
Kraemer William J - - 2013
The anterior pituitary gland (AP) increases growth hormone (GH) secretion in response to resistance exercise (RE), but the nature of AP adaptations to RE is unknown. We examined the effects of RE on regional AP somatotroph GH release, structure, and relative quantity. Thirty-six Sprague-Dawley rats were assigned to one of ...
Yardley Jane E JE a Human and Environmental Physiology Research Unit, Montpetit Hall, University of Ottawa, Ottawa, ON K1N 6N5, - - 2014
We compared growth hormone (GH) and plasma glucose (PG) levels in type 1 diabetic individuals performing aerobic before resistance exercise (AR) to when resistance exercise was performed first (RA). In AR, GH secretion declined in late exercise while it rose throughout exercise in RA, resulting in higher GH in RA ...
Thomas Gwendolyn A - - 2013
Growth hormone (GH) is regulated, suppressed and stimulated by numerous physiological stimuli. However, it is believed that obesity disrupts the physiological and pathological factors that regulate, suppress or stimulate GH release. Pulsatile GH has been potently stimulated in healthy subjects by both aerobic and resistance exercise of the right intensity ...
Sartorio A - - 2013
Repeated bouts of GH-releasing stimuli (both pharmacological and physiological, such as aerobic exercise) at 2-h intervals are associated with a blunting of somatotropic responsiveness in normal adults, while a persistent GH responsiveness to consecutive stimuli is reported to occur in children and adolescents. Recently, a single bout of respiratory muscle ...
Giunta M - - 2013
In recent years, whole body vibration (WBV) has become an efficient complement or alternative to resistance training. Very limited data on the effects of different WBV protocols on anabolic hormones are available. In this study, we compared the growth hormone (GH), blood lactate (LA), and cortisol responses to different protocols ...
Girman Julia C JC a Department of Exercise Science and Sports Studies , Springfield College , Springfield , MA , - - 2014
Abstract Limited research exists on rest-pause or cluster-set (CS) protocols. Acute effects of a traditional set (TS) and CS protocols of resistance exercise on serum growth hormone (GH), cortisol (C), blood lactate (BL), countermovement vertical jump (CMVJ) and standing long jump (SLJ) were compared. Eleven resistance-trained males (22.9±2.6 year; 176.9±10.6 ...
Myers Valerie H VH Pennington Biomedical Research Center, Baton Rouge, Lousiana, USA. - - 2013
To establish whether exercise improves quality of life (QOL) in individuals with type 2 diabetes and which exercise modalities are involved. Health Benefits of Aerobic and Resistance Training in individuals with type 2 Diabetes (HART-D; n = 262) was a 9-month exercise study comparing the effects of aerobic training, resistance ...
Simão Roberto - - 2013
The aim of this study was to examine acute hormonal responses after different sequences of an upper-body resistance-exercise session. Twenty men completed 2 sessions (3 sets; 70% 1-repetition maximum; 2 min passive rest between sets) of the same exercises in opposite sequences (larger to smaller vs. smaller to larger muscle-group ...
Curzi D D Carlo Bo University of Urbino. - - 2013
Myotendinous junctions (MTJs) are specialized sites on the muscle surface where forces generated by myofibrils are transmitted across the sarcolemma to the extracellular matrix. At the ultrastructural level, the interface between the sarcolemma and extracellular matrix is highly folded and interdigitated at these junctions. In this study, the effect of ...
Mohammadizadeh Mahmoud Asle MA Department of Sport Physiology, School of Physical Education & Sport Science, Shahid Chamran University of Ahwaz - - - 2013
Overweight and obese children are at increased risk of a wide range of health conditions including respiratory diseases. In addition, inactivity can decrease pulmonary function. This study assessed the effect of obesity and inactivity on pulmonary function impairment in adolescents. This study was conducted on 80 adolescents. Subjects were divided ...
Apicella Jenna M - - 2012
Our aim was to examine the effect of betaine supplementation on selected circulating hormonal measures and Akt muscle signaling proteins after an acute exercise session. Twelve trained men (age 19.7 ± 1.23 years) underwent 2 weeks of supplementation with either betaine (B) (1.25 g BID) or placebo (P). Following a 2-week washout period, subjects underwent ...
Stokes Keith A - - 2012
Exercise is a potent stimulus for release of growth hormone (GH), cortisol, testosterone and prolactin, and prolonged exercise inhibits insulin secretion. These responses seem to be specific to the type of exercise but this has been poorly characterised primarily because they have not been compared during exercise performed by the ...
Zebrowska A - - 2012
The study aimed at evaluating changes in plasma levels of insulin-like growth factor 1 (IGF-1), insulin-like growth factor binding protein-3 (IGFBP-3), testosterone, growth hormone (GH), cortisol, and insulin in resistance-trained male athletes with (n=9) and without (n=9) left ventricular hypertrophy (LVH) in response to eccentric (ECC) and concentric (CON) arm ...
Patterson Stephen D - - 2012
It has been suggested that circulating hormones and cytokines are important in the adaptive response to low-load resistance training (LLRT) with blood flow restriction (BFR); however, their response following this type of training in older men is unclear. Seven healthy older men (age 71.0 ± 6.5 year, height 1.77 ± 0.05 m, body mass 80.0 ± 7.5 kg; mean ± SD) ...
Hamouti Nassim - - 2013
Blood serum osmolality (S (OSM)) is the gold standard to assess body fluid balance. Urine specific gravity (U (SG)) is also a body fluid balance index but it is not invasive. However, U (SG) capability to detect the minimal level of dehydration that affects athletic performance (i.e., 2 %) remains ...
Kamijo Yoshi-Ichiro - - 2012
We examined whether carbohydrate in beverages accelerated fluid retention during recovery from thermal and exercise-induced dehydration and whether it was caused in part by an enhanced renal Na(+) reabsorption rate due to insulin secretion. After dehydrating by ~2.3% body weight by exercise in a hot environment, seven young men underwent ...
Muñoz C X - - 2012
Only limited research evaluates possible benefits of combined drinking and external cooling (by pouring cold water over the body) during exercise. Therefore, this study examined cold water drinking and external cooling on physiological, perceptual, and performance variables in hot, dry environments. Ten male runners completed four trials of walking 90 min ...
Masschelein Evi - - 2012
Exercise tolerance is impaired in hypoxia, and it has recently been shown that dietary nitrate supplementation can reduce the oxygen (O(2)) cost of muscle contractions. Therefore, we investigated the effect of dietary nitrate supplementation on arterial, muscle, and cerebral oxygenation status, symptoms of acute mountain sickness (AMS), and exercise tolerance ...
Rollo Ian - - 2012
The purpose of the present investigation was to investigate the influence of ingesting a carbohydrate-electrolyte beverage ad-libitum or as a prescribed volume on 10 mile run performance and gastrointestinal discomfort. Nine male recreational runners completed the 10 mile run under the following three conditions (1) no drinking (ND; 0 ml, ...
Watson Phillip - - 2012
Eight males were recruited to a study designed to examine the effect of tyrosine supplementation on the capacity to perform prolonged exercise in a warm environment. Subjects entered the laboratory in the morning and remained seated for 1 h before cycling to exhaustion at 70% VO2 peak. Two 250 mL ...
Wegmann Melissa - - 2012
Pre-cooling is used by many athletes for the purpose of reducing body temperature prior to exercise and, consequently, decreasing heat stress and improving performance. Although there are a considerable number of studies showing beneficial effects of pre-cooling, definite conclusions on the effectiveness of pre-cooling on performance cannot yet be drawn. ...
Burdon Catriona A - - 2012
Beverage palatability is known to influence fluid consumption during exercise and may positively influence hydration status and help to prevent fatigue, heat illness and decreased performance. PURPOSE: The aims of this review were to evaluate the effect of beverage temperature on fluid intake during exercise and investigate the influence of ...
Burdon Catriona A - - 2012
Beverage palatability is known to influence fluid consumption during exercise and may positively influence hydration status and help prevent fatigue, heat illness, and decreased performance. The aims of this review were to evaluate the effect of beverage temperature on fluid intake during exercise and investigate the influence of beverage temperature ...
Burke Louise M - - 2012
PURPOSE: We have previously shown that the aminoacidemia caused by the consumption of a rapidly digested protein after resistance exercise enhances muscle protein synthesis (MPS) more than the amino acid (AA) profile associated with a slowly digested protein. Here, we investigated whether differential feeding patterns of a whey protein mixture ...
Burke Louise M - - 2012
Abstract Ramadan fasting, involving abstinence from fluid and food from sunrise to sundown, results in prolonged periods without nutrient intake and inflexibility with the timing of eating and drinking over the day. Dietary choices may also change due to special eating rituals. Although nutrition guidelines are specific to the sport, ...
Turley Kenneth R - - 2012
The effects of caffeine on anaerobic exercise in young boys was investigated. Twenty-four healthy 8-10 year old boys participated in a randomized double-blind, double-crossover, counter-balanced study. Each subject received the caffeinated drink (CAF-5 mg · kg-1) or placebo (PL) twice each on four separate visits. Sixty minutes following ingestion of ...
Tamam Shlomi - - 2012
The effect of short duration exercise (EXR) on food intake (FI) and energy balance (EB) is not well understood in either normal weight (NW) or overweight (OW) and obese (OB) 9-14 years old children. Our purpose was to describe the effects of activity and a glucose drink on short term ...
Gwacham Nnamdi - - 2012
Consumption of energy drinks is common among athletes; however, there is a lack of research on the efficacy of these beverages for short-duration, intense exercise. The purpose of this research was to investigate the acute effects of a low-calorie caffeine-taurine energy drink (AdvoCare Spark) on repeated sprint performance and anaerobic ...
Park Sung Geon - - 2012
The purpose of this study was to determine the effects of beverage temperature and composition on weight retention and fluid balance upon voluntary drinking following exercise induced-dehydration. Eight men who were not acclimated to heat participated in four randomly ordered testing sessions. In each session, the subjects ran on a ...
van Rosendal Simon P - - 2012
PURPOSE: Intravenous (IV) saline has been used by athletes attempting to accelerate rehydration procedures. The diuresis from IV rehydration may be circumvented through the concomitant use of oral glycerol. We aimed to examine the effects of rehydrating with four different regimes of IV fluid and oral glycerol on subsequent 40 ...
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