Introduction: Long-term exercise can make the heart remodel its structure and adapt its function. However, this adaptation may be different in athletes. The occurrence of this mechanism is not clear. This experiment observed the reaction of heart pump function of Taekwondo (T-K-D) athletes during different exercises, by analyzes of blood dynamic indexes. Methods Sixteen professional T-K-D athletes underwent peak aerobic power tests (subjects cranked against an initial workload of 80W that was increased by 40W every three minutes until the subject could no longer continue at the predetermined pace) and a 30s peak anaerobic power test to measure the heart pump function blood dynamics before and after the test. Results During the aerobic test, CO, CWI, C, CI, and MAP rose markedly, while TPR lowered. The SV had little variety. During the 30s anaerobic peak effort, the TPR decreased less and MAP ascended higher. CO, CI did not change. SV was slightly higher than the results of the aerobic peak test Discussion / Conclusions The heart must withstand lower after-load and higher pre-load aerobic peak effort while during an anaerobic peak test, the heart must withstand higher after-load. This may be the reason that two different types of exercise can make the heart have different adaptations in structure and function. It was also implied that during all anaerobic exercises, TPR reduced slightly while MAP ascended higher and after-load was higher. This anaerobic-type exercise must be performed with great caution.
© Copyright 2008 2008 International Convention on Science, Education and Medicine in Sport: Proceedings, Vol. III. Published by People´s Sports Publishing House. All rights reserved.