Study of the Windward Area in the Long-distance Track Cyclists
In the long-distance cycling competition,when the athletes output power was similar,air resistance was the main factor affecting the performance.Determination athletes'windward area was the key to air resistance re-search.In order to determine the windward area of different shape athletes in different cycling poses accurately,this study tested by the plane measurement method.Methods:This method collected frontal image information of athletes using a digital camera,and then used CAD grid-corrected image distortion to obtain relatively accurate windward ar-ea results for four athletes.Conclusions:①The value of the windward area was between 0.32 and 0.35 m2,Athletes 2 has the largest value at 8°and 16°,and the largest proportion of trunk feature parameters;②The windward area was more sensitive to cycling posture changes when the trunk area was large.The estimation model of the windward area was analyzed,which can provide more accurate data reference for the training and competition of coaches and athletes.
windward area measurementtrack cyclingair resistanceplane measurement methodestimation model of windward area
NETL
NSTL
万方数据
维普
