Am J Physiol 1998,274(6 Pt 1):E1067–1074.PubMed 22. Slater G, Phillips SM: Nutrition guidelines for strength sports: sprinting, weightlifting, throwing events, and bodybuilding. J Sports Sci 2011,29(1):S67–77.PubMedCrossRef Competing interests The authors declare that they have no competing Selleckchem R406 interests. Authors’ contributions VCF and DCS wrote the manuscript. Both authors read and approved the final version.”
“Background It is well established that carbohydrate (CHO) ingestion improves prolonged (> 2 hours) steady-state [1] and intermittent endurance performance [2]. The proposed mechanisms for this ergogenic effect include a

sparing of endogenous glycogen stores, an enhanced oxidation of exogenous CHO and the maintenance of high CHO oxidation rates PI3K inhibitor during the later stages of exercise [3]. The ingestion of CHO before and during high intensity exercise over shorter durations (~ 1 hour) has also been found to enhance performance [4]. However, check details under these conditions, CHO ingestion exerts no influence on exogenous glucose uptake and total CHO oxidation [4]. To explain these findings, some authors hypothesize that CHO ingestion facilitates ergogenesis via the central nervous system, mediated by receptors in the oral cavity [5]. To investigate this theory, Carter et al. [5] examined the influence of mouth rinsing a CHO drink solution on time trial performance

in nine cyclists. Interestingly, when compared to a placebo solution, mouth rinsing with a CHO solution resulted in a 2.9% improvement in performance [5]. Subsequent research has further demonstrated that carbohydrate mouth rinsing (CMR) enhances endurance performance during cycling [6] and running [7]. While others have reported contrary findings [8], research examining different exercise modes has indicated that CMR has no influence on maximal 30 sec sprint performance [9] or maximal strength [10]. Although the precise ergogenic mechanisms of CMR are not fully understood, Gant et al. [11] reported that mouth rinsing both sweet and non-sweet CHO enhanced motor evoked potentials to fresh and fatigued muscle by 9 and 30%, respectively. Other studies also

suggest that CMR stimulates Bacterial neuraminidase receptors in the mouth, which activate neural pathways to lower the perceptions of effort and improve subjective experiences during exercise [5]. Chambers et al. [6] provided support for this notion by demonstrating that CMR activates areas of the brain associated with reward and motivation using functional MRI. Collectively, these findings raise the possibility that CMR may improve performance during multiple sprint exercise. To our knowledge, only one study has examined the influence of CMR on multiple sprint performance on a cycle ergometer [12]. Interestingly, Beaven and colleagues reported that CMR enhanced initial sprint performance, but also resulted in a greater performance decrement over their repeated sprint protocol [12].