Nutraceuticals in sports activities and fatigue

Fatigue during exercise is defined as the inability to maintain the required level of strength and performance. Doping agents and manipulation of any kind are undesirable companions of professional and amateur sports. Nutraceuticals have advantage over medicines because they avoid side effects and naturally supplement the diet. In this chapter, experimental investigations and practical applications of some nutraceuticals are analyzed, firstly with regards to their capacity to enhance physical performance and reduce fatigue, but also their mechanistic properties that are important for physiological and biochemical adaptation