ABSTRACT Position Statement: The International Society of Sports Nutrition (ISSN) bases
the following position stand on a critical analysis of the literature regarding the effects of …

Caffeine is consumed by over 80% of US adults. This review examines the effects caffeine
has on cognitive and physical function, since most real-world activities require complex …

Caffeine is a widely utilized performance-enhancing supplement used by athletes and non-
athletes alike. In recent years, a number of meta-analyses have demonstrated that caffeine's …

Fatigue is a complex state with multiple physiological and psychological origins. However,
fatigue in soccer has traditionally been investigated from a physiological perspective, with …

Purpose The aim of this study was to systematically review evidence on the prevalence and
magnitude of side effects associated with caffeine supplementation in athletes. Methods …

The aim of this investigation was to perform a systematic review and meta-analysis to
determine the efficacy of the acute ingestion of caffeine (from 3 to 6 mg/kg) to increase …

Purpose Caffeine-containing energy drinks (EDs) are currently used as ergogenic aids to
improve physical performance in a wide variety of sport disciplines. However, the outcomes …

Context Despite the progress toward gender equality in events like the Olympic Games and
other institutionalized competitions, and the rising number of women engaging in physical …

Soccer is a complex team sport and success in this discipline depends on different factors
such as physical fitness, player technique and team tactics, among others. In the last few …

Current sports nutrition guidelines recommend that athletes only take supplements following
an evidence-based analysis of their value in supporting training outcomes or competition …