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MODERN TUNNELLING TECHNOLOGY 2021, Vol. 58 Issue (6) :38-45    DOI:
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Study on Relationship between Relative Maximum Oxygen Uptake and Personnel Evacuation Capacity Based on the Step Test
(1 School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031; 2 Key Laboratory of Transportation Tunnel Engineering of Ministry of Education, Southwest Jiaotong University, Chengdu 610031; 3 Qingdao transportation management center of Shandong Expressway Co., Ltd.,Qingdao 266041)
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Abstract The relationship between relative maximum oxygen uptake and personnel evacuation exercise ability is obtained according to the completion time of different subjects in the 500 m evacuation test and in combination with the relative maximum oxygen uptake in the step test. The subjects participating in the test are between 20 and 25 years old and a total of 13 subjects are selected for the step test and evacuation test, respectively. In the step test,physiological parameters, e.g. blood oxygen saturation and heart rate of the subjects at different stages, are tested and the relative comprehensive heart rate is proposed to evaluate the exercise ability. The maximum oxygen uptake of the subjects is indirectly converted by the A-R nomogram method, and the relative maximum oxygen uptake is used to eliminate individual differences. 48 hours after the step test, the same subjects are asked to conduct a 500 m evacuation test, of which the completion time is recorded accordingly. Then, the fitting analysis is carried out for relative maximum oxygen uptake obtained from the step test and completion time of the evacuation test. It is found that there is an inverse relationship between the completion time of the evacuation test and the relative maximum oxygen uptake. So, the relative maximum oxygen uptake can be used to indirectly express the evacuation exercise ability.
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WANG Mingnian1
2 CUI Peng1
2 YU Li1
2 LU Xudong3 HU Xiaoyue1
2 XIA Pengxi1
2
KeywordsRailway tunnel   Step test   Relative maximum oxygen uptake   Evacuation capacity     
Abstract: The relationship between relative maximum oxygen uptake and personnel evacuation exercise ability is obtained according to the completion time of different subjects in the 500 m evacuation test and in combination with the relative maximum oxygen uptake in the step test. The subjects participating in the test are between 20 and 25 years old and a total of 13 subjects are selected for the step test and evacuation test, respectively. In the step test,physiological parameters, e.g. blood oxygen saturation and heart rate of the subjects at different stages, are tested and the relative comprehensive heart rate is proposed to evaluate the exercise ability. The maximum oxygen uptake of the subjects is indirectly converted by the A-R nomogram method, and the relative maximum oxygen uptake is used to eliminate individual differences. 48 hours after the step test, the same subjects are asked to conduct a 500 m evacuation test, of which the completion time is recorded accordingly. Then, the fitting analysis is carried out for relative maximum oxygen uptake obtained from the step test and completion time of the evacuation test. It is found that there is an inverse relationship between the completion time of the evacuation test and the relative maximum oxygen uptake. So, the relative maximum oxygen uptake can be used to indirectly express the evacuation exercise ability.
KeywordsRailway tunnel,   Step test,   Relative maximum oxygen uptake,   Evacuation capacity     
Cite this article:   
WANG Mingnian1, 2 CUI Peng1, 2 YU Li1 etc .Study on Relationship between Relative Maximum Oxygen Uptake and Personnel Evacuation Capacity Based on the Step Test[J]  MODERN TUNNELLING TECHNOLOGY, 2021,V58(6): 38-45
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