Before and after warm-up , and before exercise and every 5 km during exercise , athletes drank 190 mL of either aromatized ( i.e. , with 0.5 mL of menthol ( 5 gr/L ) ) or a non-aromatized beverage ( neutral temperature : 23C0 .1 C , cold : 3C0 .1 C , or ice-slush : -1 C0 .7 C ) .