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Physiological responses of walking on high obstacle
Zíková, Kateřina ; Baláš, Jiří (advisor) ; Bunc, Václav (referee)
Title: Physiological responses of walking on high obstacles Objectives: The aim of this thesis was to determine the effect of height on the physiological response of the organism when crossing an obstacle. Methods: In this experimental study, the energy demand of crossing an obstacle was assessed using the method of indirect calorimetry. 27 probands were crossing a low obstacle for 4 minutes and an high obstacle for 4 minutes, the monitored parameters were heart rate (HR), minute ventilation (VE), oxygen consumption (VO2), respiratory rate (RR), tidal volume (VT) Results: Crossing high obstacle raised physiological response compared to crossing low obstacle. VE parameter increased by an average of 87%. VO2 increased by 70%, RR by 39%, HR by 33%, VT by 27%. Conclusion: Walking high above the ground reflects the subjectively perceived risk with a physiological response. The height of the obstacle, which subjectively perceived risk, increases the metabolic demand of walking by 2/3. Kewords: balance, walking high above the ground, stress, energy expenditure
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