Discussion
fatigue
It was hypothesized that a supplement containing BCAAs, L-citrulline, and A-GPC would result in improved performance by increasing peak and average power, reducing time to completion, and reducing measures of perceived exertion in a 20 km TT test and increasing time to fatigue and reducing measures of perceived exertion in a follow-on HIEC test. To date, this is the first study examining the potential effects of this specific combination of ingredients. This study also intended to fill gaps in the scientific literature concerning the efficacy of supplementation of amino acids for enhancing performance in trained cyclists by investigating multiple measures of performance with a 20 km cycling TT test and a HIEC, as well as using a chronic loading protocol for administration of the supplement.