Biochemical and haemodynamic indicators of stress in truck drivers

The study analyses stress reaction in 3 long-distance drivers by examining the level of neuroendocrine and haemodynamic activity by taking urine samples and evaluating cardiac and blood pressure levels. Epinephrine, norepinephrine and cortisol levels found in the urine samples were recorded. The results show that epinephrine levels were high when traffic conditions were bad and that norepinephrine levels peaked in the afternoon due to work-strain. Maximum heart rate levels were recorded during the highest physical and mental periods.