Search Results
Results 151 - 200 of 1094
1 2 3 4 5 6 7 8 9 10 >
Numao Shigeharu - - 2013
OBJECTIVE: A single bout of exercise can improve acute postprandial glucose metabolism aggravated by short-term low-carbohydrate/high-fat diet (HFD). The purpose of this study was to investigate the effect of a single bout of aerobic exercise on short-term HFD-induced postprandial glucose and incretin metabolism during an oral glucose tolerance test (OGTT). ...
Sherr Jennifer L JL Corresponding author: Jennifer L. Sherr, - - 2013
Afternoon exercise increases the risk of nocturnal hypoglycemia (NH) in subjects with type 1 diabetes. We hypothesized that automated feedback-controlled closed-loop (CL) insulin delivery would be superior to open-loop (OL) control in preventing NH and maintaining a higher proportion of blood glucose levels within the target blood glucose range on ...
Svidnicki Paulo Vinicius - - 2013
AIMS: Glucagon-like peptide-1 (GLP-1) is an important modulator of insulin secretion by endocrine pancreas. In the present study we investigated the effect of swim training on GLP-1 insulinotropic action in pancreatic islets from monosodium glutamate (MSG)-obese rats. METHODS: Obesity was induced by neonatal MSG administration. MSG-obese and control (CON) exercised ...
Perciavalle Valentina - - 2013
Abstract Blood levels of lactate and glucose were measured in 15 healthy male athletes with the purpose of evaluating possible correlation between their blood values and intensity and selectivity of attention, after a 30-min steady-state test performed at 60 and 80% of maximal oxygen consumption (VO2max). On the basis of ...
Sim A Y - - 2013
Objective:To examine the acute effects of high-intensity intermittent exercise (HIIE) on energy intake, perceptions of appetite and appetite-related hormones in sedentary, overweight men.Design:Seventeen overweight men (body mass index: 27.7±1.6 kg m(-2); body mass: 89.8±10.1 kg; body fat: 30.0±4.3%; VO2peak: 39.2±4.8 ml kg(-1) min(-1)) completed four 30-min experimental conditions using a randomised counterbalanced design. CON: resting control, ...
Delmonte V - - 2013
Allogeneic islet transplantation (IT) provokes changes in metabolic responses and nutritional behaviors. The durability of these changes needs to be described as well as their impact on the recipients' lifestyle. The goal of this study was to investigate how islet transplantation influenced diet, exercise habits, and body composition during 10 ...
Choi Eun-Young - - 2013
This study investigates the impact of exercises, coffee intakes, and physical trainings on fuel utilization in rats. Ninety-six rats were fed a control diet with either water (C) or coffee (CF; 0.12 g freeze-dried instant coffee/100 g body weight/d). Additionally, the animals go through physical training (TC and TCF) or ...
Liu Yiping - - 2013
Endothelial dysfunction (ED) is an early pathophysiological change in patients with impaired glucose tolerance (IGT) during prediabetes mellitus. This study was designed to test the hypothesis that exercise intervention contributes to the reversal of vascular endothelium-dependent dysfunction in middle-aged patients with IGT. Following exercise intervention, significant changes in endothelin (ET)-1, ...
Ahmadi Narges N Department of Exercise physiology, Fars Science & Research branch, Islamic Azad University, - - 2013
The purpose of this study was to examine the effects of 8 weeks moderate intensity aerobic exercise on serum retinol binding protein 4 (RBP4) levels in female athletes. Twenty female karate athletics were randomly assigned to one of the exercise group (n = 10) or control group (n = 10). ...
Stellingwerff Trent - - 2013
Recent studies have demonstrated a direct link between increased exogenous CHO oxidation (CHOexog) and enhanced performance. The limiting factor for CHOexog appears to be at the level of intestinal transporters, with sodium/glucose cotransporter 1 (SGLT1) and glucose transporter type 5 (GLUT5) responsible for glucose and fructose transport, respectively. Studies in ...
Kingsley Michael - - 2013
OBJECTIVES: This study compared the effects of three carbohydrate-hydration strategies on blood glucose concentration, exercise performance and hydration status throughout simulated soccer match-play. DESIGN: A randomized, double-blind and cross-over study design was employed. METHODS: After familiarization, 14 recreational soccer players completed the soccer match simulation on three separate occasions. Participants ...
Ryan A S AS Baltimore VAMC, Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Maryland School of Medicine, Baltimore, MD, USA. - - 2013
To determine whether aerobic exercise training + weight loss (AEX + WL) would affect the expression of myostatin and its relationship with insulin sensitivity in a longitudinal, clinical intervention study. Thirty-three obese sedentary postmenopausal women and men (n = 17 and 16, age: 61 ± 1 years, body mass index: ...
Khazrai Yeganeh Manon - - 2013
To determine whether the administration of small amounts of glucose through an oral spray device (GSD) facilitates weight loss in overweight/obese subjects involved in a lifestyle modification programme. We randomly assigned 56 overweight/obese subjects to either the treatment group (n = 32) or the control group (n = 24). All subjects in both groups ...
Al-Nakkash L - - 2013
ABSTRACT Objective To investigate the effect of either genistein, or exercise, or both, on parameters that are indicators of cardiovascular health. Methods We investigated the effect of genistein treatment (300 mg genisten/kg body weight/day), or exercise training, or combined genistein and exercise training, for a period of 6-weeks on physical ...
Egli Léonie L Department of Physiology, University of Lausanne, Lausanne, - - 2013
Excess fructose intake causes hypertriglyceridemia and hepatic insulin resistance in sedentary humans. Since exercise improves insulin sensitivity in insulin-resistant patients, we hypothesized that it would also prevent fructose-induced hypertriglyceridemia. This study was therefore designed to evaluate the effects of exercise on circulating lipids in healthy subjects fed a weight-maintenance, high-fructose ...
Carter Lindsay G LG Graduate Center for Nutritional Sciences, College of Medicine, University of Kentucky, Lexington, KY 40536, - - 2013
Recent findings have shown that the intrauterine environment can negatively influence long-term insulin sensitivity in the offspring. Here we look at maternal voluntary exercise as an intervention to improve offspring insulin sensitivity and glucose homeostasis. Female Sprague-Dawley rats were split into sedentary and exercise groups with the exercise cohort having ...
Salvadori Alberto - - 2013
PURPOSE: It is demonstrated that aerobic exercise plays an important role in weight loss programs for obesity by increasing 24 h metabolic rate. While aerobic exercise can result in health and fitness benefits in obese subjects, also independently of weight loss, not completely clear are the effects of bouts of hard ...
Gordon Brett A - - 2013
The glycemic response to aerobic exercise is well understood; however, the response to resistance exercise is not. Eight inactive males (61.0 ± 7.2 years) with insulin-treated type 2 diabetes randomly completed single sessions of whole-body resistance exercise or cycling, 7 days apart. There were different 24-h glucose responses (p < ...
Wallis Gareth A - - 2013
The consumption of carbohydrate before, during and after exercise is a central feature of the athlete's diet, particularly those competing in endurance sports. Sucrose is a carbohydrate present within the diets of athletes. Whether sucrose, by virtue of its component monosaccharide's glucose and fructose, exerts a meaningful advantage for athletes ...
Malin Steven K SK Energy Metabolism Laboratory, Department of Kinesiology, University of Massachusetts, Amherst, MA 01003, - - 2013
Impaired glucose tolerance (IGT) is characterized by decreased oxidative capacity and reduced carbohydrate utilization during exercise. However, it is unclear if the presence of impaired fasting glucose (IFG) affects fuel utilization during exercise in adults with IGT. We tested the hypothesis that the presence of IFG in adults with IGT ...
Davitt Patrick M - - 2013
We investigated the effects of two exercise modalities on postprandial triglyceride (TG) and free fatty acid (FFA) metabolism. Sedentary, obese women were studied on 3 occasions in randomized order: Endurance exercise for 60 min at 60-65% VO2peak (E), ~60 min high-intensity resistance exercise (R), and a sedentary control trial (C). ...
VAN Dijk Jan-Willem - - 2013
PURPOSE: We assessed the effect of a single bout of moderate-intensity exercise on subsequent 24-h glycemic control in 60 type 2 diabetes patients. Moreover, we examined whether individual responses to exercise were related to subjects' baseline characteristics, including age, body mass index, diabetes duration, exercise performance, medication, and HbA1c content. ...
O'Neill Hayley M - - 2013
[This corrects the article on p. 1 in vol. 37, PMID: 23441028.].
Dornbos David D - - 2013
Physical exercise preconditioning is known to ameliorate stroke-induced injury. In addition to several other mechanisms, the beneficial effect of preischemic exercise following stroke is due to an upregulated capacity to maintain energy supplies. Adult male Sprague-Dawley rats were used in exercise and control groups. After 1-3 weeks of exercise, several ...
Leon B - - 2013
Background:Obesity disproportionately affects women, especially those of African descent, and is associated with increases in both fat and muscle masses.Objective:Although increased extremity muscle mass may be compensatory to fat mass load, we propose that elevated insulin levels resulting from diminished insulin sensitivity may additionally contribute to extremity muscle mass in ...
Kimber Nicholas Eden - - 2013
The mechanisms facilitating increased skeletal muscle fat oxidation following prolonged, strenuous exercise remain poorly defined. The aim of this study was to examine the influence of plasma free fatty acid (FFA) availability on intramuscular malonyl-CoA concentration and the regulation of whole body fat metabolism during a 6 h post-exercise recovery ...
Oliveira Alexandre G - - 2013
Objective: It has become clear that exercise may be a useful therapy in the insulin resistance treatment, since it has anti-inflammatory effects and improves insulin sensitivity. However, it remains uncertain whether exercise affects the adipocytes or infiltrated macrophages. Thus, we aimed to investigate the effects of acute exercise on the ...
Hafstad Anne D AD Cardiovascular Research Group, Department of Medical Biology, Faculty of Health Sciences, University of Tromsø, Tromsø, Norway. - - 2013
Although exercise reduces several cardiovascular risk factors associated with obesity/diabetes, the metabolic effects of exercise on the heart are not well-known. This study was designed to investigate whether high-intensity interval training (HIT) is superior to moderate-intensity training (MIT) in counteracting obesity-induced impairment of left ventricular (LV) mechanoenergetics and function. C57BL/6J ...
Chowdhury Kawshik K - - 2013
Meal-induced insulin sensitization (MIS) describes the augmented postprandial response to insulin through action of the hepatic insulin sensitizing substance (HISS). HISS-action is impaired in insulin resistance associated with aging and type 2 diabetes, but could be preserved by the antioxidant cocktail SAMEC, along with voluntary exercise. In this study, we ...
Roberts Shelley - - 2013
OBJECTIVE: The purpose of this study was to investigate the effects of pre-exercise and protein coingestion on the glycemic response to carbohydrates. METHODS: Twenty-one volunteers (13 males and 8 females) aged 22 y (± 3.8 y) participated in four trials in random order. These included: 1) glucose ingestion at rest ...
Morgan Paul M - - 2013
Flotation restricted environmental stimulation technique (R.E.S.T.) involves compromising senses of sound, sight, and touch by creating a quiet, dark environment. The individual lies supine in a tank of Epsom salt and water heated to roughly skin temperature (34-35oC). This study was performed to determine if a one hour flotation R.E.S.T. ...
Stefanov Tsvetan - - 2013
We examined the effect of a 6-month combined aerobic and resistance training programme on cardiometabolic risk factors in nondiabetic subjects and compared its effectiveness when executed under strict professional supervision or without direct supervision. Eighty-five sedentary, non-diabetic subjects (27 men and 58 women), mean age 47.5 +/- 0.6 years, mean ...
DeVan Allison E - - 2013
In the present study, we tested the hypothesis that age-associated vascular endothelial dysfunction is exacerbated by IFG (impaired fasting plasma glucose) and that regular aerobic exercise prevents this effect. Data were analysed from a cohort of 131 non-smoking men and women without overt clinical disease. Compared with young adult controls ...
Kumareswaran Kavita K University of Cambridge Metabolic Research Laboratories and National Institute for Health Research Cambridge Biomedical Research Centre, Cambridge, United Kingdom. - - 2013
Performance of continuous glucose monitors (CGMs) may be lower when glucose levels are changing rapidly, such as occurs during physical activity. Our aim was to evaluate accuracy of a current-generation CGM during moderate-intensity exercise in type 1 diabetes (T1D) pregnancy. As part of a study of 24-h closed-loop insulin delivery ...
de Moura Leandro Pereira - - 2013
ABSTRACT: It is now commonly accepted that chronic inflammation associated with obesity during aging induces insulin resistance in the liver. In the present study, we investigated whether the improvement in insulin sensitivity and insulin signaling, mediated by acute exercise, could be associated with modulation of protein-tyrosine phosphatase 1B (PTP-1B) in ...
Wax Benjamin - - 2013
ABSTRACT: The purpose of this investigation was to test the effects of carbohydrate supplementation on blood parameters and force output during superimposed electromyostimulation (SEMS) single leg isometric contractions. We hypothesized that carbohydrate ingestion prior and during muscle contractions would lead to greater glucose availability and greater total force output for ...
Lane Stephen C - - 2013
PURPOSE: Commencing selected workouts with low muscle glycogen availability augments several markers of training adaptation compared to undertaking the same sessions with normal glycogen content. However, low glycogen availability reduces the capacity to perform high intensity (>85% of peak aerobic power [V˙O2peak]) endurance exercise. We determined whether a low dose ...
Slivka Dustin - - 2013
PURPOSE: The purpose of this investigation was to determine the impact of post-exercise environmental cold exposure on muscle glycogen, PGC-1α, and downstream transcription factors. METHODS: Eight males cycled for 1 h and recovered in either 7° C (cold) or 20° C (room temp) environment for 4 h. Muscle biopsies were ...
Preisler Nicolai - - 2013
Myopathic symptoms in Glycogen Storage Disease Type IIIa (GSD IIIa) are generally ascribed to the muscle wasting that these patients suffer in adult life, but an inability to debranch glycogen likely also has an impact on muscle energy metabolism. We hypothesized that patients with GSD IIIa can experience exercise intolerance ...
Ebersbach-Silva Patricia - - 2013
To evaluate the effect of exposure to cigarette smoke and running training on a treadmill on the expression of glucose transporter GLUT4 in oxidative soleus muscle of rats. Wistar rats were divided into: (C) control, (E) exercise control, (SS), sedentary smoker, and (ES) exercise smoker. Insulin Tolerance Test, Western blotting, ...
Wylie Lee J - - 2013
Recent studies have suggested that dietary inorganic nitrate (NO(3) (-)) supplementation may improve muscle efficiency and endurance exercise tolerance but possible effects during team sport-specific intense intermittent exercise have not been examined. We hypothesized that NO(3) (-) supplementation would enhance high-intensity intermittent exercise performance. Fourteen male recreational team-sport players were ...
Trombold Justin R - - 2013
Acute exercise has been shown to attenuate postprandial plasma triglyceride elevation (PPTG). However, the direct contribution of exercise intensity is less well understood. The purpose of this study was to examine the effects of exercise intensity on PPTG and postprandial fat oxidation. One of three experimental treatments was performed in ...
Geat Mario - - 2013
OBJECTIVE: Fuel oxidation during exercise was studied in type 1 insulin-dependent (T1DM) patients mainly under quite constant insulin and glycemia; these protocols, however, likely do not reflect patients' usual metabolic conditions. The glucose oxidation rate (GLUox) in T1DM patients under usual life conditions was thus investigated during prolonged exercise (3-h) ...
Wax Benjamin - - 2013
ABSTRACT Glycine-arginine-α-ketoisocaproic acid (GAKIC) has been proposed to increase anaerobic high-intensity exercise performance in male subjects. However, the effects of GAKIC ingestion in female subjects have not been studied. Therefore, the purpose of this study was to investigate the effects of GAKIC supplementation on total load volume (i.e., mass lifted) ...
Atan T T Yaşar Doğu Physical Education and Sports High School-19 Mayıs University, Samsun, - - 2013
For years, mostly the effects of music on cardiorespiratory exercise performance have been studied, but a few studies have examined the effect of music on anaerobic exercise. The purpose of this study was to assess the effect of listening to music and its rhythm on anaerobic exercise: on power output, ...
Halse Rhiannon E - - 2013
OBJECTIVE: To compare the effect of an acute 30-min bout of self-paced stationary cycling (SC) with treadmill walking (TW) or a resting control (CON) on maternal blood glucose, insulin and metabolic responses during pregnancy. METHODS: Twelve healthy women at 29.9±2.4 (mean±SD) weeks gestation consumed a 75g carbohydrate drink as part ...
Malin Steven K - - 2013
Metformin attenuates the higher insulin sensitivity that occurs with exercise training. Sixteen people with prediabetes trained for 10 weeks while taking metformin (n = 8) or placebo (n = 8). Substrate utilization was assessed using glucose kinetics and indirect calorimetry. After training, exercise whole-body fat oxidation was higher and glycogen ...
Manabe Yasuko Y Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Boston, MA 02215, - - 2013
Chronic exercise training results in numerous skeletal muscle adaptations, including increases in insulin sensitivity and glycogen content. To understand the mechanism leading to increased muscle glycogen, we studied the effects of exercise training on glycogen regulatory proteins in rat skeletal muscle. Female Sprague Dawley rats performed voluntary wheel running for ...
O'Hagan Ciara - - 2013
Exercise is an effective treatment for type 2 diabetes mellitus, resulting in stabilization of plasma glucose in the acute phase and improvements in body composition, insulin resistance and glycosylated haemoglobin with chronic exercise training. However, the most appropriate exercise prescription for type 2 diabetes has not yet been established, resulting ...
Yen Chia Hung - - 2013
Sweet cassava tubers have abundant carbohydrates consisting of monosaccharides and polysaccharides. In addition, polysaccharides extracted from plants improve sports performance, according to recent studies. We therefore examined whether the administration of sweet cassava polysaccharides (SCPs) benefited endurance performance in rats Male Sprague-Dawley rats (n = 30, 7 weeks old) were ...
1 2 3 4 5 6 7 8 9 10 >