| The performance of the 400-meter race mainly depends on speed and speed endurance.Its energy supply is mainly provided by anaerobic glycolysis.Therefore,the training of 400 meters should attach great importance to the training of athletes' anaerobic ability and lactic acid tolerance,so that good training results can be achieved.This paper selects the track and field specialized class as the experimental object,uses the literature method,the expert interview method,the training experiment method and so on research method,through the pressure blood flow block training under the physiological and biochemical data obtains carries on the comparative research.The effect of pressure blood flow block training on the performance of 400 m athletes was analyzed.The results show that:1.The pressure blood flow block training device is to delay the blood supply speed by exerting pressure on the upper and lower extremities of the human body to narrow the pressure of blood vessels,and to stimulate the body to produce stress response under anoxic environment.This is a special training equipment that accentuates the acid internal environment of the body.After training for a period of time,the body produces adaptive changes so as to effectively improve the adaptability of the body under hypoxia and enhance the ability of the body to resist lactic acid.Speed endurance ability,anaerobic ability,so that the body transport and use of oxygen efficiency has been improved,thereby improving athletes' physical function and sports ability,so as to improve the special sportsAchievements.2.The resting heart rate of the subjects was decreased 3.6 times per minute after four-week pressure blood flow block training.An increase in vital capacity of 370 ml.This indicates that the cardiac pumping capacity and cardiopulmonary capacity have been effectively improved.Judging from the recovery of the heart rate after exercise,the athletes trained under pressure recover more quickly.The results showed that compression blood flow block training enhanced muscle adaptability to high load intensity training.3.The blood lactic acid under the same load after four-week pressure blood flow block training was significantly lower than that before training.The maximum anaerobic power value and the average anaerobic power value were significantly increased,which indicated that the pressure blood flow block training could reduce the accumulation of blood lactic acid and increase the level of ATP-CP and glycolysis energy supply,and improve the burst power and speed endurance of muscle.Lactate tolerance and anaerobic metabolic ability were significantly increased.4.pressure around the blocked blood flow after training compression group score 50.31 + 0.380 seconds with a control group of 400 meters score 51.53 + 0.788 seconds compared to P=0.015 < 0.05,the difference was statistically significant.Therefore,according to the above analysis can be drawn using pressurized flow block training compared with the traditional training more to improve the 400 metre race athletes results prove that pressure flow rate.Block training device practical application effect is remarkable.5.There was no significant change in blood pressure after four-week pressure block training compared with that before training(p > 0.05).It is proved that blood flow block training is a safe and reliable training method without adverse effects on cardiovascular system,such as hypotension or hypertension.The pressure blood flow block training device developed by the author has the following advantages: 1.The equipment is simple and easy to obtain,high safety,easy to operate and use,and the pressure control is relatively accurate;second,the use of the equipment is not limited by the site and will not destroy the complete movement of the technology;third,this training method can also be used in other projects,such as in the space field.All submarine officers and men can obtain pressure trainingVery good effect. |
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