[Individual differences in heart and respiration rate of subjects exposed to various sensomotor loads]

Three groups were established according to the reactivity of the heart and respiration rates in sensomotor tasks: Group 1: especially reacting by changes in heart rate during performance of the tasks; group 2: especially reacting by changes of the respiration rate during the tasks; group 3: subjects without differences in the changes of the heart and respiration rates. The group 1 (heart-rate-type) shows a significantly higher level of the heart rate already during the "rest" in comparison with the other groups and presents a larger increase during the sensomotor tasks, too. The respiration rate corresponds to group 3. In contrast to group 1, group 2 (respiration-rate-type) shows no differences in the level of the respiration rate during "rest", however, the increase in respiration rate is significantly greater than in the other groups during sensomotor tasks. In this group the heart rate corresponds to group 3. No significant differences between the groups were noted in the heart rate variability, in the results of the sensomotor tasks and the filling in of the INR- and VELA-questionnaires.