| For a long time,altitude hypoxic training has been paid attention to by sports teams and scientific researchers from all over the world.The plateau area is high in altitude,low in atmospheric pressure,low partial pressure of oxygen,dry climate,and low in oxygen content.Therefore,when training in a specific environment in the plateau,athletes have to bear the double stimulation of environmental hypoxia and exercise hypoxia.These stimulating effects For athletes,it will prompt the athletes to produce a strong stress response to mobilize the body's functional potential,which will cause the body to respond to hypoxic stimulation through a series of adaptive physiological reactions.Purpose: Through the exercise training of 14 high-level endurance athletes aged 18-28 years old living in the high and plains in the high altitude and low-oxygen environment,the lungs of the low-oxygen training process after going up to the high altitude Functional indicators are tracked and monitored to understand the changing laws and characteristics of cardiopulmonary function during altitude training of athletes who live in the world and the original endurance event,and provide a certain theoretical basis for the altitude hypoxia adaptation and training of endurance athletes.According to the needs of the experiment,they were divided into plateau group(7 persons)and plain group(7 persons).They came to Qinghai Dopa(2366m)plateau training base for 28 days of altitude hypoxic training and tracked and monitored the following indicators on time: including maximum shooting Oxygen volume(VO2max),oxygen uptake(VO2),minute ventilation(VE),exercise heart rate(HR),oxygen pulse(O2/HR),heart rate reserve(HRR),oxygen ventilation equivalent(Eq O2),etc.Result: The experimental results show that after four weeks of altitude training,(1)The value of ventilation per minute of athletes in the plateau group decreased from the initial 157.9±18.2 L/min to 146.0±23.6 L/min,an average decrease of 11.9 L/min,the decrease rate reached 7.5%,but there was no significant difference(P>0.05).However,the plain group remained at about 163.9±20.4L/min?164.3±21.6 L/min during the entire altitude training period,and there was no significant change(P>0.05).(2)The oxygen uptake values ??of the plateau and plain groups both showed a downward trend,but there was no significant difference(P>0.05).In comparison between groups,the oxygen uptake value of the plateau group was lower than that of the plain group during the entire altitude training period,but there was no significant difference(P>0.05).(3)The maximum oxygen uptake value of the plateau and plain groups both showed a downward trend,but there was no significant difference compared with the initial value(P>0.05).The maximum oxygen uptake of the plateau group was compared with the plain group.The value is at a consistent level during altitude training,and there is no significant difference(P>0.05).(4)The exercise heart rate value of athletes in the plateau group dropped from the initial 185.6±8.4 beat/min to 167.7±22.9 beat/min,an average decrease of17.9 beat/min,a decrease of 9.6%,and no significant difference(P>0.05).However,the plain group increased slightly,from 178.4±9.5 at the initial stage to 179.3±10.4beat/min,with an average increase of 0.9 beat/min,an increase of 0.5%,with no significant difference(P>0.05).(5)The oxygen pulse value of the athletes in the plateau group increased and the plain athletes decreased slightly,but there was no significant difference compared with the initial value(P>0.05).(6)The heart rate reserve value of the athletes in the plateau group increased,and there was no change in the plain athletes,but there was no significant difference compared with the initial value(P>0.05).(7)The oxygen ventilation equivalent values of athletes living in plateau and plains both increased,but there was no significant difference(P>0.05).Compared with the plain group,the plateau group has no significant difference in the same period(P>0.05). |
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