The Main Influencing Factors Of VO2max On Different Disciplines

Objective:The main factors affecting the VO_2max include the central system?oxygen transport?and the peripheral system?oxygen utilization?.By analyzing the related indexes and VO_2max in athletes of different disciplines,we are supposed to determine whether athletes of different disciplines are characterized by VO_2max?VC?tHb?SV and D_eff;and explore differences of the main limiting factors of VO_2max in different range.Methods:55 college volunteered to participate in this study,they are divided into 3 groups:weight lifting?WL??wrestling?WR??Triathlon?TA?.VO_2max was obtained by Graded Exercise Test;VC?MVV?SV?CO?D_eff?tHb and BV were measured and recorded by the different methods.Results:1)All indexes show special training characteristics,in comparison to UT,VO_2max are about40%-50%higher in the group TA,and 15%higher in the group WL,while the VO_2max in group WL show the same value with UT.We can see the familiar changes in the indexes of tHb?VC and D_eff.For the SV/CO,group WR shows70%-80%higher than that in group UT,group WL shows 30%than that in group UT,group TA is 20%-34%higher than that in group UT.2)The main influencing factors of VO_2max in different disciplines show difference.In all disciplines,tHb show a significant influence on VO_2max,in group WL,CO and D_effff play a more important role in limiting VO_2max than VC;in group WR,D_eff and tHb exert a greater limitation on VO_2max,while in group TA,the main limiting factor is D_eff,then the tHb?VC?CO.3)According to the correlational analysis of VO_2max and its influencing factors,regression models of VO_2max are established:Y=549.793+0.276*VC+0.047*D_eff+1.198*tHb(Y-VO_2max,R²=0.86,R²=0.84,P<0.00)Conclusions:VO_2max?VC?tHb?CO and D_eff have special training characteristics,these indexes and VO_2max are highly correlated,the main factors affecting the VO_2max in different ranges are different,In group WR,tHb and SV/CO play a more important role on limiting VO_2max,while in group WR and TA,tHb and D_eff are the most important influencing factors.