| （1.Department of Physical Education，Hunan Normal University，Changsha 410081，China；2.The Fourth Hospital of Changsha，Hunan Normal University，Changsha 410081，China） Abstract: By using Doppler ultrasonic cardiogram, the authors made a comparative study of the Tei index, maxi-mum speed of the jet stream in the outflow tract of the left ventricle during contraction and heart rate of athletes and ordinary colleges students with an identical body surface area, and revealed the following findings: the Tei index of athletes is relatively small; the maximum speed of the jet stream in outflow tract of their left ventricle during con-traction is relatively fast; their heart rate is relatively slow; all of which show a significant difference. The authors concluded that as compared with ordinary college students, the overall function of contraction and relaxation of the heart of athletes were significantly enhanced, and they had a higher level of cardiac stroke reverse and heart rate re-serve.
Key words: sports medicine；Tei index；cardiac function；college student majoring in physical education；ordinary college student |
