Research Topics
Species | J L IvySummaryAffiliation: University of Texas Country: USA Publications
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Detail Information
Publications
Exercise training improves muscle insulin resistance but not insulin receptor signaling in obese Zucker ratsChristine Y Christ
Department of Physiology, University of Texas Health Sciences Center, San Antonio, Texas 78712, USA
J Appl Physiol 92:736-44. 2002....- Post exercise carbohydrate-protein supplementation: phosphorylation of muscle proteins involved in glycogen synthesis and protein translationJ L Ivy
Exercise Physiology and Metabolism Laboratory, Department of Kinesiology and Health Education, The University of Texas, Austin, Texas 78712 0360, USA
Amino Acids 35:89-97. 2008.... - The effect of a carbohydrate and protein supplement on resistance exercise performance, hormonal response, and muscle damageJacob J Baty
Exercise Physiology and Metabolism Laboratory, Department of Kinesiology and Health Education, University of Texas, Austin, Texas 78712, USA
J Strength Cond Res 21:321-9. 2007..These results suggest the use of a CHO-PRO supplement during resistance training to reduce muscle damage and soreness... - Role of exercise training in the prevention and treatment of insulin resistance and non-insulin-dependent diabetes mellitusJ L Ivy
Department of Kinesiology and Health, University of Texas at Austin, USA
Sports Med 24:321-36. 1997..Exercise training may also improve control over hepatic glucose production by increasin.. - LKB1-AMPK signaling in muscle from obese insulin-resistant Zucker rats and effects of trainingApiradee Sriwijitkamol
Diabetes Division, University of Texas Health Science Center at San Antonio, TX, USA
Am J Physiol Endocrinol Metab 290:E925-32. 2006..54, P = 0.02), and PGC-1alpha protein content (r = 0.81, P < 0.001). In summary, obese insulin-resistant rodents have abnormalities in the LKB1-AMPK-PGC-1 pathway in muscle, and these abnormalities can be restored by training... 
International society of sports nutrition position stand: caffeine and performanceErica R Goldstein
Nova Southeastern University, Fort Lauderdale Davie, FL 33314, USA
J Int Soc Sports Nutr 7:5. 2010..7.) The scientific literature does not support caffeine-induced diuresis during exercise, or any harmful change in fluid balance that would negatively affect performance...- Cereal and nonfat milk support muscle recovery following exerciseLynne Kammer
Exercise Physiology and Metabolism Laboratory Department of Kinesiology and Health Education The University of Texas at Austin Austin, TX, USA
J Int Soc Sports Nutr 6:11. 2009.... - Effects of recovery beverages on glycogen restoration and endurance exercise performanceMichael B Williams
Cardiovascular Research Institute, University of North Texas, Health Science Center at Fort Worth, Texas 76107, USA
J Strength Cond Res 17:12-9. 2003..05). These findings indicate that the rate of recovery is coupled with the rate of muscle glycogen replenishment and suggest that recovery supplements should be consumed to optimize muscle glycogen synthesis as well as fluid replacement... - Muscle insulin resistance amended with exercise training: role of GLUT4 expressionJohn L Ivy
Exercise Physiology and Metabolism Laboratory, Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, TX 78712, USA
Med Sci Sports Exerc 36:1207-11. 2004..Emphasis will be given to the importance of an increased GLUT4 expression on alleviating muscle insulin resistance... - Role of carbohydrate in physical activityJ L Ivy
Department of Kinesiology and Health Education, University of Texas at Austin, USA
Clin Sports Med 18:469-84, v. 1999..Considered in the discussion are the types, amounts and forms of carbohydrate supplements that are most effective, and the most appropriate times for their ingestion... - Glycogen resynthesis after exercise: effect of carbohydrate intakeJ L Ivy
Department of Kinesiology, University of Texas, Austin 78712, USA
Int J Sports Med 19:S142-5. 1998..The addition of protein to a carbohydrate supplement may also increase the rate of glycogen storage due to the ability of protein and carbohydrate to act synergistically on insulin secretion... - Effect of pyruvate and dihydroxyacetone on metabolism and aerobic endurance capacityJ L Ivy
Department of Kinesiology and Health Education, University of Texas at Austin, USA
Med Sci Sports Exerc 30:837-43. 1998..In summary, chronic supplementation of pyruvate-dihydroxyacetone may be beneficial from a preventive medicine prospective as well as for certain athletic endeavors... - Effects of clenbuterol on insulin resistance in conscious obese Zucker ratsS J Pan
Exercise Physiology and Metabolism Laboratory, Department of Kinesiology and Health Education, University of Texas at Austin, Austin, TX 78712, USA
Am J Physiol Endocrinol Metab 280:E554-61. 2001..The improvements noted may be related to the repartitioning of body weight between tissues... - Glucose transport: locus of muscle insulin resistance in obese Zucker ratsW M Sherman
Department of Kinesiology and Health Education, University of Texas, Austin 78712
Am J Physiol 255:E374-82. 1988..The glycogen concentration and the activity of hexokinase were the same and the glycogen synthase activity was higher in the muscles for the obese rats when compared to lean rats.(ABSTRACT TRUNCATED AT 250 WORDS).. - Attenuation of insulin resistance by chronic beta2-adrenergic agonist treatment possible muscle specific contributionsA Castle
Department of Kinesiology and Health Education, The University of Texas, Austin 78712, USA
Life Sci 69:599-611. 2001..Improvements in insulin resistance may have been due, in part, to both increases in lean body mass and specific adaptations in FG muscle... - Early postexercise muscle glycogen recovery is enhanced with a carbohydrate-protein supplementJohn L Ivy
Exercise Physiology and Metabolism Laboratory, Department of Kinesiology and Health Education, University of Texas at Austin, Austin, Texas 78712, USA
J Appl Physiol 93:1337-44. 2002..These results suggest that a CHO-Pro supplement is more effective for the rapid replenishment of muscle glycogen after exercise than a CHO supplement of equal CHO or caloric content... 
Adding protein to a carbohydrate supplement provided after endurance exercise enhances 4E-BP1 and RPS6 signaling in skeletal musclePaul J Morrison
Dept of Kinesiology and Health Education, Bellmont Hall 222, The Univ of Texas at Austin, Austin, Texas 78712 0360, USA
J Appl Physiol 104:1029-36. 2008....- Added protein maintains efficacy of a low-carbohydrate sports drinkVanessa MartÃnez-Lagunas
Department of Kinesiology and Health Education, The University of Texas at Austin Exercise Physiology and Metabolism Laboratory, Austin, Texas, USA
J Strength Cond Res 24:48-59. 2010..Thus, adding PRO to a low-calorie CHO sports drink may be an effective strategy to enhance aerobic capacity while limiting carbohydrate and caloric consumption... - Dietary strategies to promote glycogen synthesis after exerciseJ L Ivy
Exercise Physiology and Metabolism Laboratory, Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, TX, USA
Can J Appl Physiol 26:S236-45. 2001..Research suggests that aerobic performance following recovery is related to the degree of muscle glycogen replenishment... - Improved cycling time-trial performance after ingestion of a caffeine energy drinkJohn L Ivy
Department of Kinesiology and Health Education, University of Texas, Austin, TX 78712 0360, USA
Int J Sport Nutr Exerc Metab 19:61-78. 2009..Energy drinks are composed of ingredients that have been found to increase endurance and improve physical performance... - Effect of a carbohydrate-protein supplement on endurance performance during exercise of varying intensityJohn L Ivy
Department of Kinesiology and Health Education, The University of Texas, Austin, TX 78712, USA
Int J Sport Nutr Exerc Metab 13:382-95. 2003..In summary, we found that the addition of protein to a carbohydrate supplement enhanced aerobic endurance performance above that which occurred with carbohydrate alone, but the reason for this improvement in performance was not evident... - Role of insulin on exercise-induced GLUT-4 protein expression and glycogen supercompensation in rat skeletal muscleChia-Hua Kuo
Department of Kinesiology and Health Education, University of Texas at Austin, Austin, Texas 78712, USA
J Appl Physiol 96:621-7. 2004..These results suggest that insulin is essential for the increase in GLUT-4 protein expression following postexercise carbohydrate supplementation... - Functional electrical stimulation cycling improves body composition, metabolic and neural factors in persons with spinal cord injuryL Griffin
Department of Kinesiology and Health Education, The University of Texas at Austin, Bellmont 222, 1 University Station, D3700, Austin, TX 78712, United States
J Electromyogr Kinesiol 19:614-22. 2009..Blood glucose and insulin levels were lower following the OGTT after 10 weeks of training. Triglyceride levels did not change following training. However, levels of IL-6, TNF-alpha, and CRP were all significantly reduced... - Effect of glycogen synthase overexpression on insulin-stimulated muscle glucose uptake and storageDonovan L Fogt
Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, Texas 78712, USA
Am J Physiol Endocrinol Metab 286:E363-9. 2004.... - Clenbuterol prevents epinephrine from antagonizing insulin-stimulated muscle glucose uptakeDesmond G Hunt
Exercise Physiology and Metabolism Laboratory, Department of Kinesiology and Health Education, University of Texas at Austin, Austin, Texas 78712, USA
J Appl Physiol 92:1285-92. 2002..Results of this study indicate that the effectiveness of epinephrine to inhibit insulin-stimulated glucose uptake is severely diminished in muscle from rats pretreated with clenbuterol... - Propranolol prevents epinephrine from limiting insulin-stimulated muscle glucose uptake during contractionDesmond G Hunt
Exercise Physiology and Metabolism Laboratory, Department of Kinesiology and Health Education, University of Texas at Austin, Austin, Texas 78712, USA
J Appl Physiol 93:697-704. 2002..Thus the increase in glucose clearance and premature fatigue associated with beta-blockade could result from the inability of epinephrine to attenuate insulin-stimulated muscle glucose uptake... - Exercise training increases components of the c-Cbl-associated protein/c-Cbl signaling cascade in muscle of obese Zucker ratsJeffrey R Bernard
Exercise Physiology and Metabolism Laboratory, Department of Kinesiology and Health Education, University of Texas at Austin, Austin, TX 78712, USA
Metabolism 57:858-66. 2008..These results suggest that skeletal muscle insulin resistance is associated with reduced expression of TC10 and that this deficiency can be corrected with exercise training... - Epinephrine inhibits insulin-stimulated muscle glucose transportDesmond G Hunt
Exercise Physiology and Metabolism Laboratory, Department of Kinesiology and Health Education, University of Texas at Austin, Austin, Texas 78712, USA
J Appl Physiol 93:1638-43. 2002..The inhibition of glucose transport by epinephrine appears to involve the inhibition of IRS-1-associated PI3-kinase activation... - An amino acid mixture enhances insulin-stimulated glucose uptake in isolated rat epitrochlearis muscleMaximilian Kleinert
Department of Kinesiology and Health Education, University of Texas at Austin, Austin, Texas 78712, USA
J Appl Physiol 111:163-9. 2011..Furthermore, these effects appear to be mediated via a pathway that is independent from the canonical insulin cascade and therefore may prove effective as an alternative therapeutic treatment for insulin resistance... - An amino acid mixture improves glucose tolerance and insulin signaling in Sprague-Dawley ratsJeffrey R Bernard
Exercise Physiology and Metabolism Laboratory, Department of Kinesiology and Health Education, University of Texas at Austin, 78712 0360, USA
Am J Physiol Endocrinol Metab 300:E752-60. 2011..These findings suggest that amino acid supplementation can improve glucose tolerance by increasing skeletal muscle glucose uptake and intracellular disposal through enhanced intracellular signaling... - Effect of systemic hypoxia on GLUT4 protein expression in exercised rat heartShih-Wei Chou
Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, Taipei, Taiwan, ROC
Jpn J Physiol 54:357-63. 2004..This molecular adaptation appears to be associated with the observed increase in glycogen storage of the muscle... - Effect of prolonged intermittent hypoxia and exercise training on glucose tolerance and muscle GLUT4 protein expression in ratsLi Ling Chiu
Laboratory of Exercise Biochemistry, Taipei Physical Education College, Taipei, Taiwan, ROC
J Biomed Sci 11:838-46. 2004..These new findings open the possibility of utilizing intermittent hypoxia, with or without exercise training, for the prevention and clinical treatment of type 2 diabetes or insulin resistance... - Carbohydrates and fat for training and recoveryLouise M Burke
Department of Sports Nutrition, Australian Institute of Sport, PO Box 176, Belconnen, ACT 2616, Australia
J Sports Sci 22:15-30. 2004..Although there is new interest in the recovery of intramuscular triglyceride stores between training sessions, there is no evidence that diets which are high in fat and restricted in carbohydrate enhance training...