Froiland K, Koszewski W, Hingst J, Kopecky L: Nutritional supplement use among college athletes and their sources of information. Int J Sports Nutr Exerc Metab. 2004, 14: 104-120.
Hoffman JR, Faigenbaum AD, Ratamess NA, Ross R, Kang J, Tenenbaum G: Nutritional supplementation and anabolic steroid use in adolescents. Med Sci Sports and Exerc. 2008, 40: 15-24.
Desbrow B, Leveritt M: Awareness and use of caffeine by athletes competing at the 2005 Ironman Triathlon World Championships. Int J Sport Nutr Exerc Metab. 2006, 16: 545-558.
Petroczi A, Naughton Dp, Pearce G, Bailey R, Bloodworth A, McNamee MJ: Nutritional supplement use by elite young UK athletes: fallacies of advice regarding efficacy. J Int Soc Sports Nutr. 2008, 5: 22-10.1186/1550-2783-5-22.
Bruce CR, Anderson ME, Fraser SF, Stepto NK, Klein R, Hopkins WG, Hawley JA: Enhancement of 2000-m rowing performance after caffeine ingestion. Med Sci Sports Exerc. 32: 1958-1963.
Graham TE, Hibbert E, Sathasivam P: Metabolic and exercise endurance effects of coffee and caffeine ingestion. J Appl Physiol. 1998, 85: 883-889.
Graham TE, Spriet LL: Performance and metabolic responses to a high caffeine dose during prolonged exercise. J Appl Physiol. 1995, 78: 867-874.
Hoffman JR, Kang J, Ratamess NA, Jennings PF, Mangine G, Faigenbaum AD: Effect of Nutritionally Enriched Coffee Consumption on Aerobic and Anaerobic Exercise Performance. J Strength Cond Res. 2007, 21: 456-459. 10.1519/R-20326.1.
Hogervorst E, Bandelow S, Schmitt J, Jentjens R, Oliveira M, Allgrove J, Carter T, Gleeson M: Caffeine improves physical and cognitive performance during exhaustive exercise. Med Sci Sports Exerc. 2008, 40: 1841-1851. 10.1249/MSS.0b013e31817bb8b7.
Kalmar JM: The influence of caffeine on voluntary muscle activation. Med Sci Sports Exerc. 2005, 37: 2113-2119. 10.1249/01.mss.0000178219.18086.9e.
Woolf K, Bidwell WK, Carlson AG: Effect of caffeine as an ergogenic aid during anaerobic exercise performance in caffeine naïve collegiate football players. J Strength Cond Res. 2009, 1363-1369.
Hoffman JR, Ratamess NA, Ross R, Shanklin M, Kang J, Faigenbaum AD: Effect of a Pre-Exercise 'High-Energy' Supplement Drink on the Acute Hormonal Response to Resistance Exercise. J Strength Cond Res. 2008, 22: 874-882.
Ratamess NA, Hoffman JR, Ross R, Shanklin M, Faigenbaum AD, Kang J: Effects of an Amino Acid/Creatine/Energy Supplement on Performance and the Acute Hormonal Response to Resistance Exercise. Int J Sport Nutr Exerc Metab. 2007, 17: 608-623.
Spriet LL: Caffeine and performance. Int J Sport Nutr. 1995, 5: S84-S99.
Sawynok J: Pharmacological rationale for the clinical use of caffeine. Drugs. 1995, 49: 37-51. 10.2165/00003495-199549010-00004.
Hoffman JR, Kang J, Ratamess NA, Hoffman MW, Tranchina CP, Faigenbaum AD: Examination of a high energy, pre-exercise supplement on exercise performance. J Int Soc Sports Nutr. 2009, 6: 2-10.1186/1550-2783-6-2.
Scholey AB, Kennedy DO: Cognitive and physiological effects of an "energy drink": an evaluation of the whole drink and of glucose, caffeine, and herbal flavouring fractions. Psychopharm. 2004, 176: 320-330. 10.1007/s00213-004-1935-2.
Smit HJ, Cotton JR, Hughes SC, Rogers PJ: Mood and cognitive performance effects of "energy" drink constituents: caffeine, glucose and carbonation. Nutr Neurosci. 2004, 7: 127-139. 10.1080/10284150400003041.
Smith A: Effects of caffeine on human behavior. Food Chem Toxicol. 2002, 40: 1243-1255. 10.1016/S0278-6915(02)00096-0.
Miyazaki T, Matsuzaki Y, Ikegami T, Miyakawa S, Doy M, Tanaka N, Bouscarel B: Optimal and effective oral doses of taurine to prolong exercise performance in rat. Amino Acids. 2004, 27: 291-298. 10.1007/s00726-004-0133-1.
Zhang M, Izuma I, Kagamimori S, Sokejima S, Yamagami T, Liu Z, Qi B: Role of taurine supplementation to prevent exercise-induced oxidative stress in healthy young men. Amino Acids. 2004, 26: 203-207. 10.1007/s00726-003-0002-3.
Candow DG, Kleisinger AK, Grenier S, Dorsch KD: Effect of sugar-free red bull energy drink on high-intensity run time-to-exhaustion in young adults. J Strength Cond Res. 2009, 23: 1271-1275.
Tipton KD, Rasmussen BB, Miller SL, Wolf SE, Owens-Stovall SK, Petrini BE, Wolfe RR: Timing of amino acid-carbohydrate ingestion alters anabolic response of muscle to resistance exercise. Am J Phys Endocr Metab. 2001, 281: E197-E206.
Hoffman JR, Ratamess NA, Tranchina CP, Rashti SL, Kang J, Faigenbaum AD: Effect of Protein Ingestion on Recovery Indices Following a Resistance Training Protocol in Strength/Power Athletes. Amino Acids. 2009,
Aquilani R, Iadarola P, Contardi A, Boselli M, Verri M, Pastoris O, Boschi F, Arcidiaco P, Viglio S: Branched-chain amino acids enhance the cognitive recovery of patients with severe traumatic brain injury. Arch Phys Med Rehab. 2005, 86: 1729-1735. 10.1016/j.apmr.2005.03.022.
Cole JT, Mitala CM, Kundu S, Verma A, Elkind JA, Nissim I, Cohen AS: Dietary branched chain amino acids ameliorate injury-induced cognitive impairment. Proc Natl Acad Sci. 2010, 107: 366-371. 10.1073/pnas.0910280107.
Egberts EH, Schomerus H, Hamster W, Jurgens P: Branched chain amino acids in the treatment of latent portosystemic encephalopathy. A double blind placebo controlled crossover study. Gastroenterology. 1985, 88: 887-895.
Fernstrom JD: Branched-chain amino acids and brain function. J Nutr. 2005, 135: 1539s-1546s.
Meeusen R, Watson P: Amino acids and the brain: do they play a role in "central fatigue"?. Int J Sports Nutr Exerc Metab. 2007, 17: S37-S46.
Davis JM, Alderson NL, Welsh RS: Serotonin and central nervous system fatigue: nutritional considerations. Am J Clin Nutr. 2000, 72: 573S-578S.
Matsumoto K, Mizuno M, Mizuno T, Dilling-Hansen B, Lahoz A, Bertelsen V, Münster H, Jordening H, Hamada K, Doi T: Branched-chain amino acids and arginine supplementation attenuates skeletal muscle proteolysis induced by moderate exercise in young individuals. Int J Sports Med. 2007, 28: 531-538. 10.1055/s-2007-964940.
Hoffman JR, Stout JR: Performance-Enhancing Substances. Essentials of Strength and Conditioning. Edited by: Earle RW, Baechle TR. 2008, Human Kinetics: Champaign, IL, 179-200. 3
Shulman RG, Rothman DL, Behar KL, Hyder F: Energetic basis of brain activity: implications for neuroimaging. Trends Neurosci. 2004, 27: 489-495. 10.1016/j.tins.2004.06.005.
Stockler S, Schutz PW, Salomons GS: Cerebral creatine deficiency syndromes: clinical aspects, treatment and pathophysiology. Subcell Biochem. 2007, 46: 149-66. full_text.
Andres RH, Ducray AD, Schlattner U, Wallimann T, Widmer HR: Functions and effects of creatine in the central nervous system. Brain Res Bul. 2008, 76: 329-343. 10.1016/j.brainresbull.2008.02.035.
Ellis AC, Rosenfeld J: The role of creatine in the management of amyotrophic lateral sclerosis and other neurodegenerative disorders. CNS Drugs. 2004, 18: 967-980. 10.2165/00023210-200418140-00002.
McMorris T, Harris RC, Howard AN, Langridge G, Hall B, Corbett J, Dicks M, Hodgson C: Creatine supplementation, sleep deprivation, cortisol, melatonin and behavior. Physiol Behav. 2007, 90: 21-28. 10.1016/j.physbeh.2006.08.024.
Castell LM, Newsholme EA: Glutamine and the effects of exhaustive exercise upon the immune response. Can J Physiol Pharmacol. 1998, 76: 524-532. 10.1139/cjpp-76-5-524.
Favano A, Santos-Silva PR, Nakano EY, Pedrinelli A, Hernandez AJ, Greve JM: Peptide glutamine supplementation for tolerance of intermittent exercise in soccer players. Clinics. 2008, 63: 27-32. 10.1590/S1807-59322008000100006.
Hoffman JR, Ratamess NA, Kang J, Rashti SL, Kelly N, Gonzalez AM, Stec M, Andersen S, Bailey BL, Yamamoto LM, Hom LL, Kupchak BR, Faigenbaum AD, Maresh CM: Examination of the efficacy of acute L-Alanyl-L-Glutamine during Hydration Stress in Endurance Exercise. J Int Soc Sports Nutr. 2010, 7: 8-10.1186/1550-2783-7-8.