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探讨不同海拔高原低氧环境对重体力劳动者劳动能力的影响,研究以工地筑路民工为对象。采用荧光技术测定海拔2260m移居3600m、5050m筑路民工在重体力劳动负荷下全血5-羟色胺的变化。随着海拔的升高,氧分压下降,筑路工劳动时间和劳动强度均与2260m筑路工相等。但劳动效率明显降低,全血5-羟色胺含量梯度增高。移居3600m、5050m筑路工二组与2260m比较t分别为2.38和3.18,P<0.01。结论:高原低氧加之重体力劳动是导致全血5-羟色胺单胺递质变化的主要因素。
To explore the impact of different altitude hypoxia on the labor ability of heavy manual workers, the study of road construction workers for the target. Fluorescence technique was used to determine the changes of serotonin in whole blood of migrant workers at 5050m under heavy manual labor load at a altitude of 2260m and 3600m. As the altitude increases, the partial pressure of oxygen drops, the time and labor intensity of road workers are equal to that of 2260m road workers. However, labor efficiency was significantly reduced, the whole blood 5-HT increased gradient. Migration 3600m, 5050m road construction workers two groups and 2260m compared t were 2.38 and 3.18, P <0.01. Conclusions: High altitude hypoxia plus heavy manual labor are the main factors leading to the change of serotonin monoamine neurotransmitters in whole blood.