Recovery of heart rate, heart rate variability, and blood pressure during the break after each bout of physical work (WB1-WB6), stratified by mental task (MT1, MT2, MT3); mean (SD between subjects)^a.

a: scores were calculated by subtracting the value during work from the value during the subsequent break. IBI, inter-beat interval. For Heart rate variability metrics, see methods section. MT1, MT2, MT3; easy, medium and difficult mental task. Recovery of heart rate, heart rate variability, and blood pressure during the break after each bout of physical work (WB1-WB6), stratified by mental task (MT1, MT2, MT3); mean (SD between subjects)a.