Endurance exercise training induces a rapid increase in the GLUT-4 isoform of the glucose transporter in muscle. In fasted rats, insulin-stimulated muscle glucose transport is increased in proportion to the increase in GLUT-4. There is evidence that high muscle glycogen may decrease insulin-stimulated glucose transport. This study was undertaken to determine whether glycogen supercompensation i...

Exercise has several hemorheological effects that we previously proposed to classify as a triphasic phenomenon: acute effects (hyperviscosity mostly due to hemoconcentration but also to some alterations of erythrocyte properties); delayed effects (hyperhydration resulting in hemodilution and hypoviscosity), and a chronic situation which can be termed hemorheologic fitness. This presentation foc...

BACKGROUND & OBJECTIVES Athletes in Malaysia need to perform in a hot and humid environment due to the climatic nature of the country. Chronic supplementation of Panax ginseng (PG) (a deciduous perennial plant belonging to the Araliaceae family) enhances physical performance. As the ergogenic effect of acute supplementation of PG on endurance performance has not been explored in the Malaysian p...

introduction: studies have shown that insufficient recovery between sessions causes immune suppression. the aim of this study was to investigate the effect of repeated bouts resistance and endurance exercise on blood leukocytes, lymphocytes, neutrophils, monocytes count and plasma cortisol levels in athlete girls. materials and methods: 9 athlete girls (ages, 20-25 years), participated in the s...

The aim of this research was to investigate the effects of endurance training on reduction of plasma glucose during high intensity constant and incremental speed tests in Wistar rats. We hypothesized that plasma glucose might be decreased in the exercised group during heavy (more intense) exercise. Twenty-four 10-week-old male Wistar rats were randomly assigned to sedentary and exercised groups...

Fatty acid oversupply is a key mediator of skeletal muscle insulin resistance in obesity, primarily via accumulation of fatty acid metabolites and activation of proinflammatory pathways. Herein, we demonstrate that fatty acid-induced insulin resistance in humans is completely prevented the day after 1 session of endurance exercise. Because skeletal muscle is the primary site for systemic glucos...

Objective: Diabetes is a common disease and its prevalence rate is rapidly increasing. Aim of present study was to review the hypoglycemic effects of Nigella sativa (N.sativa) extract and endurance training in streptozotocin induced diabetic rats. Materials and Methods: In this experimental research from 50 streptozotocine induced diabetic rats, 32 rats with more than 300 mg/dL fasting blood g...

We hypothesized that abnormal endothelium-dependent vasodilation (EDD) found in older otherwise healthy subjects can be attenuated with long-term endurance training. Ten endurance-trained men, 68.5 +/- 2.3 yr old, and 10 healthy sedentary men, 64.7 +/- 1.4 yr old, were studied. Aerobic exercise capacity (VO(2 max)), fasting plasma cholesterol, insulin, and homocysteine concentrations were measu...

Exercise enhances branched-chain amino acid (BCAA) catabolism, and BCAA supplementation influences exercise metabolism. However, it remains controversial whether BCAA supplementation improves exercise endurance, and unknown whether the exercise endurance effect of BCAA supplementation requires catabolism of these amino acids. Therefore, we examined exercise capacity and intermediary metabolism ...

conclusions the findings suggest that chronic coadministration of nandrolone with moderate-intensity endurance exercise facilitates the vf occurrence in rat. complementary studies are needed to elucidate the involved mechanisms of this abnormality. results nandrolone, exercise, and their combination were associated with heart hypertrophy. exercise could prevent the incremental effect of nandrol...