Primary outcome measure: difference in skin temperature measure by infrared-thermography,,,,,,,,,,,,,,,,,,,,,,,, Full details below,,,,,,,,,,,,,,,,,,,,,,,, ,,? Relative Tsk (°C),,,,,,,,,,,,,,,,,,,,,, ,Participant,Beetroot,Placebo,,,,,,,,,,,,,,,,,,,,, ,1,0.0,0.2,,,,,,,,,,,,,,,,,,,,, ,2,0.3,0.0,,,,,,,,,,,,,,,,,,,,, ,3,0.4,0.6,,,,,,,,,,,,,,,,,,,,, ,4,0.0,0.7,,,,,,,,,,,,,,,,,,,,, ,5,-0.4,0.9,,,,,,,,,,,,,,,,,,,,, ,6,0.3,0.3,,,,,,,,,,,,,,,,,,,,, ,7,1.0,0.6,,,,,,,,,,,,,,,,,,,,, ,8,0.2,0.3,,,,,,,,,,,,,,,,,,,,, ,9,-0.2,0.7,,,,,,,,,,,,,,,,,,,,, ,10,-0.5,-0.3,,,,,,,,,,,,,,,,,,,,, ,11,0.0,0.1,,,,,,,,,,,,,,,,,,,,, ,12,-0.7,-0.9,,,,,,,,,,,,,,,,,,,,, ,13,0.4,0.3,,,,,,,,,,,,,,,,,,,,, ,Mean,0.1,0.3,,,,,,,,,,,,,,,,,,,,, ,SD,0.5,0.5,,,,,,,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,,,,,,,,,,, ,,,Beetroot juice,,,,,,,,,,,Placebo ,,,,,,,,,, ,,,Pre-cooling,,,,,Post-cooling,,,,,Pre-post,Pre-cooling,,,,,Post-cooling,,,,,Pre-post ,,,Supraclavicular BAT,,Sternum control,,(Location),Supraclavicular BAT,,Sternum control,,(Location),(Time/location),Supraclavicular BAT,,Sternum control,,(Location),Supraclavicular BAT,,Sternum control,,(Location),(Time/location) ,,Participant ,Mean Tsk,SD Tsk,Mean Tsk,SD Tsk,Delta,Mean Tsk,SD Tsk,Mean Tsk,SD Tsk,Delta,Delta-Delta,Mean Tsk,SD Tsk,Mean Tsk,SD Tsk,Delta,Mean Tsk,SD Tsk,Mean Tsk,SD Tsk,Delta,Delta-Delta ,,1,34.8,0.2,34.0,0.2,0.8,34.3,0.4,33.5,0.1,0.8,0.0,34.8,0.3,34.0,0.1,0.8,34.9,0.3,33.9,0.2,1.0,0.2 ,,2,34.4,0.3,32.9,0.1,1.5,34.3,0.3,32.5,0.4,1.8,0.3,34.1,0.2,32.4,0.2,1.7,33.4,0.3,31.7,0.1,1.7,0.0 ,,3,34.1,0.2,32.7,0.2,1.4,33.6,0.2,31.8,0.2,1.8,0.4,34.1,0.3,32.1,0.2,2.0,34.0,0.2,31.4,0.2,2.6,0.6 ,,4,34.3,0.1,32.0,0.1,2.3,34.1,0.1,31.8,0.1,2.3,0.0,34.8,0.2,33.1,0.1,1.7,34.3,0.2,31.9,0.2,2.4,0.7 ,,5,34.6,0.2,31.6,0.2,3.0,34.2,0.3,31.6,0.1,2.6,-0.4,34.5,0.2,32.6,0.4,1.9,34.5,0.3,31.7,0.2,2.8,0.9 ,,6,34.1,0.2,31.5,0.2,2.6,34.3,0.3,31.4,0.2,2.9,0.3,34.0,0.3,31.6,0.1,2.4,33.7,0.3,31.0,0.2,2.7,0.3 ,,7,33.6,0.2,32.1,0.1,1.5,34.0,0.3,31.5,0.2,2.5,1.0,33.8,0.1,32.2,0.1,1.6,33.6,0.2,31.4,0.2,2.2,0.6 ,,8,34.5,0.1,32.8,0.1,1.7,35.2,0.1,33.3,0.1,1.9,0.2,34.6,0.2,33.2,0.2,1.4,34.3,0.2,32.6,0.3,1.7,0.3 ,,9,34.7,0.1,33.8,0.2,0.9,34.8,0.2,34.1,0.2,0.7,-0.2,34.1,0.2,33.2,0.3,0.9,35.0,0.3,33.4,0.2,1.6,0.7 ,,10,34.9,0.2,33.2,0.3,1.7,34.4,0.2,33.2,0.3,1.2,-0.5,34.6,0.2,33.5,0.4,1.1,34.3,0.3,33.5,0.5,0.8,-0.3 ,,11,33.8,0.3,31.8,0.5,2.0,33.9,0.2,31.9,0.4,2.0,0.0,34.1,0.2,32.5,0.4,1.6,34.3,0.2,32.6,0.3,1.7,0.1 ,,12,34.4,0.2,32.3,0.2,2.1,33.8,0.3,32.4,0.2,1.4,-0.7,34.6,0.1,32.4,0.2,2.2,34.5,0.2,33.2,0.2,1.3,-0.9 ,,13,33.5,0.2,31.8,0.2,1.7,33.5,0.2,31.4,0.4,2.1,0.4,33.9,0.2,32.5,0.2,1.4,34.0,0.2,32.3,0.1,1.7,0.3 ,,Mean,34.3,0.2,32.5,0.2,1.8,34.2,0.2,32.3,0.2,1.8,0.1,34.3,0.2,32.7,0.2,1.6,34.2,0.2,32.4,0.2,1.9,0.3 ,,SD,0.4,0.1,0.8,0.1,0.6,0.5,0.1,0.9,0.1,0.7,0.5,0.3,0.1,0.7,0.1,0.5,0.5,0.1,0.9,0.1,0.6,0.5 ,,,,,,,,,,,,,,,,,,,,,,,,