Changes in the oxygen transport system of erythrocytes in testing the general endurance of students

N. Neporadna, S. Popel
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引用次数: 1

Abstract

The aim of the study: to reveal morpho-functional changes in erythrocytes in students with different levels of general endurance. Material and methods: It was examined 80 students (17-19 years old). The students performed a 12-min shuttle run (20m endurance shuttle-run - bleep test). The ventilation function of the lungs was estimated according to the forced exhalation data. The gas composition of the blood was determined by the gas analyzer ОРТІ ССА-TS. Results. It was determined that in students with lower than average and low levels of general endurance, the increase of lungs ventilation is stipulated by the increase in the frequency of respiration. This leads to rapid tiredness of the respiratory muscles, reduces ventilation of the lungs and gas exchange. Low levels of blood oxygenation, intensity of oxidative phosphorylation and ATP resynthesis lead to the appearance of atypical forms of erythrocytes. It is established that at the low level of cardiorespiratory endurance there is an increase in the concentration of acidic metabolism products in arterial blood and reduce in its alkaline reserves. Conclusions. Students with below average and low levels of physical fitness are characterized by: increased respiratory rate, reduced ventilation of the lungs and gas exchange. This leads to the formation of a hypoxic condition in the peripheral blood: a reduce of pO2, pCO2 level and the appearance of metabolic acidosis symptoms. For students with below average and low level of physical fitness hypoxic condition leads to violation of bioenergetic processes in peripheral blood erythrocytes, reduction of ATP product, increase in the content of intra-erythrocytic 2,3-BPG.
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学生综合耐力测试中红细胞氧转运系统的变化
本研究的目的:揭示不同综合耐力水平学生红细胞形态功能的变化。材料和方法:对80名学生(17-19岁)进行调查。学生们进行了12分钟的穿梭跑(20米耐力穿梭跑-哔哔声测试)。肺的通气功能是根据强迫呼气数据估计的。通过气体分析仪ОРТССА-TS测定血液中的气体成分。后果研究表明,在总体耐力低于平均水平和较低水平的学生中,呼吸频率的增加决定了肺部通气量的增加。这会导致呼吸肌肉快速疲劳,减少肺部通气和气体交换。低水平的血氧、氧化磷酸化和ATP再合成导致非典型红细胞的出现。已经证实,在心肺耐力较低的情况下,动脉血液中酸性代谢产物的浓度会增加,碱性储备会减少。结论。身体素质低于平均水平和低水平的学生的特点是:呼吸频率增加,肺部通气和气体交换减少。这导致外周血中缺氧状态的形成:pO2、pCO2水平降低,并出现代谢性酸中毒症状。对于身体素质低于平均水平和低水平的学生,缺氧会导致外周血红细胞生物能量过程的破坏、ATP产物的减少、红细胞内2,3-BPG含量的增加。
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