Fig. 2
From: Intermittent face cooling reduces perceived exertion during exercise in a hot environment
Time course of Tear, Tsk, HR, and RPE in the CONT (white circle), FC4 (gray triangle), and FC2 trials (black quadrangle). Values are presented as the mean ± SD for 10 participants. #P < 0.05 and ##P < 0.01, significant difference between the CONT and FC4 trials. *P < 0.05 and **P < 0.01, significant difference between the CONT and FC2 trials. Tear: ear temperature; Tsk: skin temperature, HR: heart rate; RPE: ratings of perceived exertion; CONT, control exercise trial; FC4: facial cooling with 0 °C packs at 4-min intervals; FC2: facial cooling with 0 °C packs at 2-min intervals