Evaluation Of Plateau Training Effect Of Male Kaykathletes

Objective:to analyze the athletes'high altitude training by observing the red blood cell?RBC?,hemoglobin?Hb?,red blood cell pressure product?Hct?,creatine kinase?CK?,blood urea nitrogen?BUN?and the aerobic and anaerobic capacity before and after the plateau training during the training of Shaanxi Kayak.The purpose of this study is to explore the rationality of the plateau training program and its causes,so as to provide references for formulating training plans and implementing scientific training.Methods:8 men's kayak sportsmen of Shaanxi kayak were studied.The changes of erythrocyte?RBC?,hemoglobin?Hb?,hematocrit?Ht?,creatine kinase?CK?,blood urea nitrogen?BUN?and the changes of aerobic and anaerobic capacity before and after high altitude training were observed during the plateau training.The blood routine indexes were tested by whole blood cell instrument,CK and BUN were tested by semi automatic biochemical analyzer.The aerobic capacity was tested by Cosmed3 cardiopulmonary tester.The anaerobic ability was tested by Concept II boating dynamometer.Blood lactic acid was tested by blood lactic acid meter.The data were statistically processed by SPSS12.0 software package,and X±SDwas used to express the data.The paired sample t test was used in the group before and after the group,and P<0.05 was used as the difference significant level.Results:?1?TV,VO₂,VCO₂,VO₂/kg,VO2/HR and PetCO₂ were significantly greater than those before plateau training?P<0.05?.RR,VEO₂ and VD/TV were significantly less than before altitude training?P<0.05,0.01?.VE,VE,and VD/TV were slightly less than before altitude training?0.05?.After altitude training,TV and PetCO₂ were significantly greater than before altitude training?P<0.05?,VD/TV was significantly less than before altitude training?P<0.01?,RR and PetO₂were slightly smaller than before altitude training?P>0.05?,VE,VO₂,VCO₂,VO₂/kg,and prior to plateau training?0.05?.VO₂,VCO₂,VO₂/kg,VO₂/HR and PetCO₂ were significantly greater than those before altitude training?P<0.05?,VD/TV was significantly smaller than before altitude training?P<0.01?,TV and VE were slightly larger than before altitude training?P>0.05?.?2?during the ventilation threshold exercise,VO₂before altitude training had moderate positive correlation with TV,RR,VE and VO₂/HR,and had a moderate negative correlation with VEO₂.The correlation with VD/TV,PetO₂and PetCO₂was relatively low.After altitude training,VO₂was moderately positively correlated with TV,RR,RR,etc.when the aeration threshold exercise of the athletes was higher.Positive correlation was positively correlated with VD/TV and VEO₂,but negatively correlated with PetO₂.After altitude training,the correlation between athletes'VO₂and TV,VO₂/HR,VD/TV,VEO₂ and Pet CO₂ is higher than that before altitude training,and the correlation with RR and VE is lower than that before altitude training.When the maximum oxygen uptake critical load intensity movement,VO₂ and TV,VE and VO₂/HR were positively correlated with RR and PetCO₂ before altitude training,and were negatively correlated with PetO₂,VD/TV,VEO₂.After altitude training,VO₂ was positively correlated with TV,RR,RR,and VO₂/HR.Moderate negative correlation was found in O₂,VD/TV and VEO2.After altitude training,the correlation between athletes'VO₂ and TV,VO₂/HR,PetO₂,VD/TV and VEO₂ is higher than that before altitude training,and the correlation with RR,VE and PetCO₂is lower than that before altitude training.?3?after high altitude training,the maximum power,average power,dynamometer performance,pulp frequency and BLamax were slightly greater than before the plateau training,but there was no significant difference?P>0.05?.The recovery of blood lactic acid after plateau training was faster than before the plateau training,and the blood lactic acid was significant after the plateau training to 13min.It was less than before high altitude training?P<0.05?.?4?the indexes of RBC,Hb,Hct,BUN and CK were wavy change during the period of 8 weeks of plateau training,and the index of RBC,Hb and Hct reached the peak at the end of the fourth week,but there was no significant difference from that before the plateau training?P>0.05?.The eighth weekend,RBC,Hb,and Hct index were respectively increased than before the plateau training.?P>0.05?.The peak value of BUN and CK reached a peak at the end of third weeks,then slightly decreased.The eighth weekend increased significantly compared with that before altitude training?P>0.05?.During the plateau training,except for the high CK index at the end of third weeks,BUN and CK indexes were all within normal range at other times.Conclusion:?1?the design of altitude training load is reasonable,reaching the training target and no accumulation of fatigue.?2?high altitude training can improve the aerobic capacity of the kayak by improving the blood capacity of the heart pump,lung ventilation efficiency,air exchange efficiency and oxygen utilization ability.?3?high altitude training can improve the ability of excellent kayak athletes in glycolysis,but there is still room for rise,which suggests that the coach should strengthen the maximum lactic acid tolerance training.?4?the maximum oxygen uptake ability of the elite kayak athletes in our province and the international men's canoeing athletes still have a certain gap.The coach should further strengthen the training of the maximum aerobic ability of the athletes.