ABSTRACT
Apexcardiogram (ACG) was applied clinically to evaluation of hemodynamics and cardiac functicn. especially diastolic function. So far no information in this field is available. 193 athletes engaged in different types of training --- including 118 males with an average age of 22.4 and training period of 4.5 years and 75 females with an average age of 21.4 years and training period of 5.2 years --- were examined with ACG in left lateral decubitus position. A/H ratio, rapid filling wave (RFW), slow filling wave (SFW) and SFW/RFW ratio were calculated.1. The sex difference was significant in RFW (P
ABSTRACT
In order to determine the pathophysiologic significance of electrocardiographic ventricular hypertrophy in athletes (LVH ath), echocardiographic measurements of left ventricular mass (LVM) were performed on 50 LVH ath. and 50 non-LVH matched ath. They were members of National Teams of track and field, swimming, football and cycling, with an average age of 20.74?3.3 years. Anatomic validation of the method was used for calculation of LVM in this study. Comparisons of LVM were made between LVH ath. and non-LVH ath., and between non-LVH ath. and the untrained:LVM=1.04?[(LVID+PWT+IVST)~3-(LVID)~3]-14Results showed no significant difference of LVM between LVH ath. and non-LVH ath. while LVM of non-LVH ath. were considerably greater than that of the untrained (P
ABSTRACT
The purpose of this study is to investagate the meaning of systolic time intervals (STI) in evaluating cardiac functional condition of athletes.1. STI and step test were examined on 13 sprinters, 8 jumpers, 5 throwers and 5 distance runners during early, middle and the last phases in summer training season.No significant changes of the left ventricular ejection time (LVET), the pre-ejection period (PEP) and PEP/LVET ratio were found from examinations on athletes in the three different phases.The cases were divided into two groups of PEP/LVET ratio increased more than 0.05 (N=8) and PEP/LVET ratio decreased more than 0.05 (N=10) by the different of PEP/LVET ratio between linked phases examinations. Athough two of PEP/LVET ratio of each group were different evidently (P
ABSTRACT
In this study, the cardiac structure and function in 102 athletes with high voltage of left ventricle inECG were examined by echocardiogtaphy, apexcardiography, systolic time intervals, X-ray cardiac measure-ment and physical work capacity tests. The parameters obtained were compared with those of 110 athletes withnormal voltage of left ventricle. Results showed no significant difference between these two groups either in cardiac structure (LYID,PWT, IYST) or in catdiac function (STI's, SV, EF, Vcf, PWV). The results of this study may be ofpractical value to the work of medical supervision and physical training.