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Creatine Is an Ergogen for Anaerobic Exercise
Nutrition Reviews, 2009Throughout history, athletes have searched for performance-enhancing agents. Recently, creatine (N-[aminoiminomethyl]-N-methyl glycine) has been marketed as an ergogenic dietary supplement. There appears to be scientific merit to the claim that creatine is ergogenic when taken in large amounts.
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Aerobic exercise, anaerobic exercise and the lactate threshold
British Medical Bulletin, 1992All exercise draws first on intramuscular stores of ATP and creatine phosphate; initially these are replenished by anaerobic glycolysis. The lactic acid produced contributes to the rapid development of fatigue in high intensity exercise. Aerobic metabolism (at first mainly of glycogen, later increasingly of fat) is the principal route of ATP ...
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Muscle Deoxygenation in Aerobic and Anaerobic Exercise
1998It has been generally accepted that the use of oxygen is a major contributor of ATP synthesis in endurance exercise but not in short sprints. In anaerobic exercise, muscle energy is thought to be initially supported by the PCr-ATP system followed by glycolysis, not through mitochondrial oxidative phosphorylation.
S, Nioka +6 more
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The Anaerobic Threshold Measurement in Exercise Testing
Clinics in Chest Medicine, 1984The exercise intensity (VO2) above which aerobic energy production starts to be supplemented by anaerobic mechanisms is termed the anaerobic threshold (AT). Lactic acid is produced at an increased rate above this work level. Since this acid is almost completely buffered by HCO-3, the rate of CO2 production increases in excess of that being derived from
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The Effect of Caffeine as an Ergogenic Aid in Anaerobic Exercise
International Journal of Sport Nutrition and Exercise Metabolism, 2008The study examined caffeine (5 mg/kg body weight) vs. placebo during anaerobic exercise. Eighteen male athletes (24.1 ± 5.8 yr; BMI 26.4 ± 2.2 kg/m2) completed a leg press, chest press, and Wingate test. During the caffeine trial, more total weight was lifted with the chest press, and a greater peak power was obtained during the Wingate test.
Kathleen, Woolf +2 more
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Anaerobic exercise in teleost fish
Canadian Journal of Zoology, 1982In teleost fish, high speed ("burst") swimming is performed anaerobically while sustained performance is aerobic. The degree to which anaerobic energy production contributes to swimming performance in the steady exercise zone (swimming maintained for 2 to 200 min) in unknown.
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Reproducibility of Post-Exercise Lactate and Anaerobic Threshold
International Journal of Sports Medicine, 1988To test the effect of previous strenuous training on lactate (LA) formation and on changes of lactate threshold (AT) values, a group of seven male athletes aged 26.3 +/- 9.2 years, height 184 +/- 6.2 cm, body weight 79.3 +/- 8.1 kg, percentage of body fat 8.8 +/- 3.7 and VO2 max 56.2 +/- 5.4 ml/kg were examined on a treadmill to the maximum in the ...
J, Fric +6 more
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Anaerobic metabolism of the respiratory muscles during exercise
Medicine & Science in Sports & Exercise, 1984Although minute ventilation (VE) exhibits marked increases during heavy rhythmic exercise utilizing a large muscle mass, the extent to which this hyperpnea stresses the respiratory muscles remains controversial. In an attempt to resolve this matter, we measured arterial blood lactate concentration during seated isocapnic reproduction of peak exercise ...
B J, Martin, H I, Chen, M A, Kolka
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Massive Insulin Secretion in Response to Anaerobic Exercise in Exercise-induced Hyperinsulinism
Hormone and Metabolic Research, 2005Exercise-induced hyperinsulinism (EIHI) is a recently described entity characterised by recurrent episodes of hypoglycaemia induced by physical exercise. The index patient for this disorder and a matched control were subjected to aerobic and anaerobic exercise tests on a cycle ergometer.
T, Meissner +7 more
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The Anaerobic Threshold Measurement to Evaluate Exercise Performance
American Review of Respiratory Disease, 1984Abstract During exercise, the oxygen consumption above which aerobic energy production is supplemented by anaerobic mechanisms, and which results in a significant increase in lactate, is termed the anaerobic threshold (AT). This power output has important functional implications because it is a demarcation of the work rate above which
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