| Objective: During the winter training period,the young men 's middle-distance race runners were monitored in order to analyze the changes of their body' s functional status and then to master its laws,which provided the necessary basis for the training coaches had organised.Methods: There are 10 Men's middle-distance race athletes in Suchow City Youth Sports School,their age are 16-17 years old.Winter training period is divided into three stages,including winter training early period(November 1st – December 15th),winter training middle period(December 16th-January 26th)and winter training late period(February 4th-March 15th).The RPE values of the athletes' training sessions were respectively recorded on December 13 th,January 24 th and March 14 th.The middle-distance race athletes are divided into two batches for collecting venous blood at 7:00am On December 14 th,January 25 th,March 15 th,and then venous blood is put into the corresponding EP tube.The levels of white blood cells and hemoglobin were measured with blood rountine test.The levels of serum creatine kinase and blood urea were measured with Biochemical tester.The levels of Serum Testosterone and Cortisol were measured with chemiluminiscence tester;After athelets try their best to run 400 m,the highest blood lactate concentration were measured with a portable blood lactic acid analyzer in the December 15 th,January 26 th,March 16 th afternoon.Results:1.Blood routine test results:The number of white blood cells of middle-distance race atheletes in winter training early period was significantly higher than those in winter training middle period(P<0.05),and the distribution of white blood cells of middle-distance race runners in winter training late period was significantly higher than those in winter training middle period(P<0.05).The level of hemoglobins of middle-distance race runners in winter training early period was significantly higher than those in winter training middle period(P<0.05),and the level of hemoglobins of middle-distance race runners in winter training early and middle period was significantly lower than those in winter training late period(P<0.05,P<0.01).2.Biochemical test results:The content of creatine kinase of middle-distance race atheletes in winter training early period was significantly lower than those in winter training middle and late period(P<0.01).The content of creatine kinase of middle-distance race atheletes in winter training middle period was significantly higher than those in winter training late period(P<0.01).The level of blood urea of middle-distance race atheletes in winter training early period was significantly lower than those in winter training middle period(P<0.05),The content of blood urea of middle-distance race atheletes in winter training early and middle period was significantly lower than those in winter training late period(P<0.01,P<0.01).The ratio of serum testosterone / cortisol of middle-distance race atheletes in winter training early period was significantly higher than those in winter training middle period(P<0.05),The ratio of T / C of middle-distance race atheletes in winter training middle period was significantly lower than those in winter training late period(P<0.05)3.Chemical luminometer test results:There was no significant difference between winter training early period and winter training middle period in the level of serum testosterone of middle-distance race atheletes(P> 0.05),The content of serum testosterone of middle-distance race atheletes in winter training early and middle period was significantly lower than those in winter training late period(P<0.05).The content of cortisol of middle-distance race atheletes in winter training early period was significantly lower than those in winter training middle period(P<0.05),The contibution of cortisol of middle-distance race atheletes in winter training late period was significantly higher than those in winter training early period(P<0.05).4.Portable blood lactate test results: The content of blood lactate of middle-distance race atheletes in winter training early period was significantly higher than those in winter training middle period(P<0.01).The contribution of blood lactate of middle-distance race atheletes in winter training late period was significantly higher than those in winter training early and middle period(P<0.01).5.RPE scale results:The value of RPE scale of middle-distance race atheletes in winter training early period was significantly lower than those in winter training middle and late period(P<0.01).The value of RPE scale of middle-distance race atheletes in winter training late period was significantly lower than those in winter training middle period(P<0.01).Conclusion: 1.During the winter training period,middle-distance race atheletes are monitored by the blood routine test.white blood cells and red blood cells are used to react the exercise intensity,its content decreases with the increase of exercise intensity,and increases with the decrease of load capacity.2.In the assessment of Endocrine system function,testosterone and cortisol both manifest a phenomena: hysteresis quality,which is occured in winter training middle and late period.The ratio of T/C accurately reflects the functional status of middle-distance race atheletes.3.Creatine kinase can accurately assess the exercise intensity of middle-distance race atheletes,however,blood urea manifests a “lag” in the assessment of load.Suggestions:1.Establish the file which the personal physiological and biochemical indicators are monitored.Considering that the large differences of biochemical indicators of individual and the time change of some indicators is short,we should strictly follow the requirements of indicator collection.2.The changes of the blood testosterone,cortisol,blood urea indicators and body function have a certain degree of delay in middle-distance race athletes,we should make adjustments combined with the athletes' RPE value and training performance,if it is necessary,we should ready to add nutritional supplements. |
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