Caffeine Kinetics and CrossFit®-Specific Performance

"CAFMONO supplementation - random blind acute intake of in individual dose providing 3mg/kg BM of CAF.~CAFMONO - Caffeine (anhydrous caffeine), Ostrovit Sp. z o.o., Zambrów, POLAND"

"CAFMIPS\_1 supplementation - random blind acute intake of in individual dose providing 3mg/kg BM of CAF.~CAFMIPS\_1 - Olimp Redweiler, Olimp Laboratories Sp. z o.o., Dębica, POLAND~CAFMIPS\_1 - Olimp Redweiler, Olimp Laboratories Sp. z o.o., Dębica, POLAND"

"CAFMIPS\_2 supplementation - random blind acute intake of in individual dose providing 3mg/kg BM of CAF.~CAFMIPS\_2 - Muscle Clinic Furious, Noblepharma UG, BerlinVertrieb, GERMANY."

Placebo treatment - random blind acute intake of placebo preparation. Placebo will match the remaining test preparations with taste, colour and consistency, however it will be free of caffeine and any other substances possessing ergogenic potential.