MENTHOL-SPRAY induced improvements in TS ( up to 3 km of TT ) and TC ( up to 1 km ) with Tau showing a tendency to be higher than CONTROL-SPRAY ( +0.20 [ 0.29 ] C ) and CONTROL condition ( 0.30 [ 0.34 ] C ) ; this was not statistically significant and the rate of rise in Tau was linear .