The use of nutritional supplements in sport is widespread and few serious athletes do not, at
some stage in their career, succumb to the temptation to experiment with one or more …

Abstract Greer, BK and Jones, BT. Acute arginine supplementation fails to improve muscle
endurance or affect blood pressure responses to resistance training. J Strength Cond Res …

Genetic endowment and proper training are the major factors contributing to athletic success
in endurance and ultraendurance events. Proper nutrition, primarily adequate carbohydrate …

Ergogenic is defined as to increase work or potential for work. Nutritional ergogenic aids are
defined as substances found in the diet or cells that are ingested in an effort to produce …

In brief: The contention that amino acids increase secretion of human growth hormone has
served as the catalyst for their increased popularity. Although growth hormone has been …

Chronic supplementation with β-alanine has been shown to increase intramuscular
concentrations of carnosine resulting in increased muscle buffering capacity. The ergogenic …

Creatine and ß-alanine are two of the most popular sport supplements used by
strength/power athletes today. The popularity of creatine has resulted in more than 600 …

Creatine (Cr) supplementation increases muscle mass, strength, and power. Arginine α-
ketoglutarate (A-AKG) is a precursor for nitric oxide production and has the potential to …

Brain 5-hydroxytryptamine (5-HT) has been suggested to be involved in central fatigue
during endurance exercise. Changes in the ratio of plasma free tryptophan (Trp) to branched …

The use and effects of selected performance-enhancing drugs and nutritional supplements
are reviewed. Recent sports medicine studies are mostly double blind and placebo …