Importance of motivation in tolerability of increased breathing resistance

Cortical mechanisms play an important role in breathing control under increased breathing resistance (resistive loads). Cortical mechanisms determine the level of voluntary motivation, which significantly affects the tolerance of resistive breathing loads. The purpose of the paper is to determine the effect of voluntary motivation on the tolerance of additional breathing resistance. Materials and Methods. The authors formed procedural motivation by means of moral encouragement or financial rewards of the subjects. Simulation of increased breathing resistance was performed using increasing values of thresholdless inspiratory aerodynamic loads: 40, 60, 70, and 80 % from the maximum intraoral pressure. Results. The maximum level of tolerance of additional breathing resistance was observed in volunteers with a material and subsidiary procedural motivation of activity. Under respiratory loads, these subjects demonstrated the greatest deviations of the functional state indicators. Undefined motivation based on the mobilization of goal-oriented resources with moral stimulation showed less efficiency. Lack of specially formed procedural motivation led to minimal tolerance of resistive loads. Conclusion. Procedural motivation, aimed at overcoming additional breathing resistance, significantly increases the tolerance of individual protective means of respiratory organs, which maintains health of workers in a polluted technological environment.