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ergogenics and depression

Lena Marcus, Jason Soileau, Lawrence W Judge, David Bellar
BACKGROUND: Recent studies have suggested that alpha glycerylphosphorylcholine (A-GPC) may be an effective ergogenic aid. The present study was designed to assess the efficacy of two doses of A-GPC in comparison to placebo and caffeine for increasing countermovement jump performance, isometric strength, and psychomotor function. METHODS: Forty-eight healthy, college aged males volunteered for the present study and underwent baseline assessment of countermovement jump (CMJ), isometric mid thigh pull (IMTP), upper body isometric strength test (UBIST), and psychomotor vigilance (PVT)...
2017: Journal of the International Society of Sports Nutrition
Richard B Kreider, Douglas S Kalman, Jose Antonio, Tim N Ziegenfuss, Robert Wildman, Rick Collins, Darren G Candow, Susan M Kleiner, Anthony L Almada, Hector L Lopez
Creatine is one of the most popular nutritional ergogenic aids for athletes. Studies have consistently shown that creatine supplementation increases intramuscular creatine concentrations which may help explain the observed improvements in high intensity exercise performance leading to greater training adaptations. In addition to athletic and exercise improvement, research has shown that creatine supplementation may enhance post-exercise recovery, injury prevention, thermoregulation, rehabilitation, and concussion and/or spinal cord neuroprotection...
2017: Journal of the International Society of Sports Nutrition
Francis L Pazini, Mauricio P Cunha, Julia M Rosa, André R S Colla, Vicente Lieberknecht, Ágatha Oliveira, Ana Lúcia S Rodrigues
Ketamine has emerged as a novel strategy to treat refractory depression, producing rapid remission, but elicits some side effects that limit its use. In an attempt to investigate a safer compound that may afford an antidepressant effect similar to ketamine, this study examined the effects of the ergogenic compound creatine in a model of depression, and the involvement of phosphatidylinositol-3-kinase/protein kinase B/mammalian target of rapamycin (PI3K/Akt/mTOR) pathway in its effect. In order to induce a depressive-like behavior, mice were administered with corticosterone (20 mg/kg, per os (p...
December 2016: Molecular Neurobiology
L A Balykova, A A Shirokova, O M Soldatov, N V Shchekina, A N Urziaeva
The mechanisms of L-carnitine action and ergogenic pleiotropic effects of drugs, which play important role in sports medicine are described. Results of a comparative, parallel-group randomized clinical trial of L-carnitine (Elkar, PikFarma) in young athletes (football players, walkers) are reported. Elkar increases the body adaptation to physical stress and has a pronounced therapeutic effect in athletes with stress-induced cardiomyopathy by reducing the representation of potentially dangerous arrhythmia (sinus bradycardia less than 2 - 5 centile, 2nd degree atrioventricular block type II, T-wave inversion in more than 2 leads, and/or ST segment depression) and severity of benign ECG disturbances and hemodynamic changes, and decreasing the concentration of biochemical markers of myocardial damage (troponin, natriuretic peptide, creatine phosphokinase MB fraction) and cortisol...
2014: Eksperimental'naia i Klinicheskaia Farmakologiia
A M Anuchin, G G Iuvs
Estimation of ergogenic effects of caffeine and bitter orange exract combined with alcohol is presented in the article. Investigations were performed on 3 groups (8 animals in each group) of male Wistar rats aged 4 months. Animals in group 1 were treated orally for 7 days, the mixture comprising caffeine and alcohol (0.6 g of caffeine, 72 ml of ethanol, water to 1 liter) in an amount equivalent to 4.28 mg caffeine per kg of body weight. Animals in group 2 received a mixture containing bitter orange extract and alcohol (1 g bitter orange extract, 72 ml of ethanol, water to 1 liter) in an amount equivalent to 0...
2014: Voprosy Pitaniia
Patricia J Allen, Kristen E D'Anci, Robin B Kanarek, Perry F Renshaw
Impairments in bioenergetic function, cellular resiliency, and structural plasticity are associated with the pathogenesis of mood disorders. Preliminary evidence suggests that creatine, an ergogenic compound known to promote cell survival and influence the production and usage of energy in the brain, can improve mood in treatment-resistant patients. This study examined the effects of chronic creatine supplementation using the forced swim test (FST), an animal model selectively sensitive to antidepressants with clinical efficacy in human beings...
January 2010: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
R D Stewart, T A Duhamel, K P Foley, J Ouyang, I C Smith, H J Green
To determine if exercise-induced depressions in neuromuscular function are altered with oral glucose supplementation, 15 untrained participants (Vo2 peak = 45 +/- 2 ml x kg(-1) x min(-1), mean +/- SE) performed prolonged cycle exercise at approximately 60% Vo2 peak on two occasions: without glucose supplementation (NG) and with oral glucose supplementation (G). The oral G began at 30 min of exercise and was administered every 15 min (total ingested = 1.23 +/- 0.11 g carbohydrate/kg body mass). Quadriceps isometric properties and membrane excitability were assessed prior to exercise, after 90 min of exercise, and at fatigue...
July 2007: Journal of Applied Physiology
Simeon P Cairns
This article critically discusses whether accumulation of lactic acid, or in reality lactate and/or hydrogen (H+) ions, is a major cause of skeletal muscle fatigue, i.e. decline of muscle force or power output leading to impaired exercise performance. There exists a long history of studies on the effects of increased lactate/H+ concentrations in muscle or plasma on contractile performance of skeletal muscle. Evidence suggesting that lactate/H+ is a culprit has been based on correlation-type studies, which reveal close temporal relationships between intramuscular lactate or H+ accumulation and the decline of force during fatiguing stimulation in frog, rodent or human muscle...
2006: Sports Medicine
D van West, M Maes
Fibromyalgia is a form of non-articular rheumatism characterised by long term (>3 months) and widespread musculoskeletal aching, stiffness and pressure hyperalgesia at characteristic soft tissue sites, called soft tissue tender points. The biophysiology of fibromyalgia, however, has remained elusive and the treatment remains mainly empirical. This article reviews the neuroendocrine-immune pathophysiology of fibromyalgia. There is no major evidence that fibromyalgia is accompanied by activation of the inflammatory response system, by immune activation or by an inflammatory process...
2001: BioDrugs: Clinical Immunotherapeutics, Biopharmaceuticals and Gene Therapy
A J Gruber, H G Pope
BACKGROUND: Although numerous studies have documented the psychiatric and physiological effects of anabolic-androgenic steroids (AAS) in males, virtually no studies have investigated the effects of illicit AAS use in women. METHODS: We performed psychiatric and medical evaluations of 75 dedicated women athletes, recruited by advertisement primarily from gymnasiums in the Boston, Mass., area. RESULTS: Twenty-five (33%) of the women reported current or past AAS use...
2000: Psychotherapy and Psychosomatics
O J Heinonen
Carnitine plays a central role in fatty acid (FA) metabolism. It transports long-chain fatty acids into mitochondria for beta-oxidation. Carnitine also modulates the metabolism of coenzyme-A (CoA). It is not surprising that the use of supplementary carnitine to improve physical performance has become widespread in recent years, although there is no unequivocal support to this practice. However, critical reflections and current scientific-based knowledge are important because the implications of reduced or increased carnitine concentrations in vivo are not thoroughly understood...
August 1996: Sports Medicine
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