Kaunas University of Medicine, Lithuania.
Medicina (Kaunas). 2010;46(6):421-8.
We consider the human body as an adaptable, complex, and dynamic system capable of organizing itself, though there is none, the only one, factor inside the system capable of doing this job. Making use of the computerized ECG analysis system "Kaunas-load" with parallel registration of ECG carrying out body motor characteristics, ABP, or other processes characterizing hemodynamics enable one to reveal and evaluate the synergistic aspects of essential systems of the human body what particularly extends the possibilities of functional diagnostics. The aim of the study was to determine the features of alterations in the functional condition of basketball and football players and nonathletes during the bicycle ergometry test by applying the model of evaluation of the functional condition of the human body.
The study population consisted of 266 healthy athletes and nonathletes. Groups of male basketball players, male football players, male nonathletes, female basketball players, and female nonathletes were studied. A computerized ECG analysis system "Kaunas-load" that is capable of both registering and analyzing the power developed by the subject and 12-lead ECG synchronically were used for evaluating the functional condition of the CVS. The subject did a computer-based bicycle ergometry test. The following ECG parameters at rest and throughout the load - HR, JT interval, and the deduced JT/RR ratio index that reflects the condition between regulatory and supplying systems - were evaluated. After measuring ABP, the pulse amplitude (S-D) was evaluated. The pulse blood pressure ratio amplitude (S-D)/S that depicts the connection between the periphery and regulatory systems was also evaluated. Speeds of changes in physiological parameters during physical load were evaluated too.
Heart rate and JT/RR ratio of athletes at the rest and during load were lower, and JT interval of rest was longer and became shorter more slowly during load, compared to that of healthy nonathletes. The pulse arterial blood pressure amplitude of men at rest and during load was higher than that of women. The pulse ABP amplitude of athletes was higher than that of nonathletes. The relative pulse ABP amplitude in the state of rest in the groups of men was higher than in groups of women. The relative pulse amplitude of female basketball players at rest and during load was higher than that of female nonathletes. Significant differences in the dynamics of speed of changes in HR, the pulse ABP amplitude, and the relative pulse ABP amplitude of male and female basketball players, male football players, as well as male and female nonathletes were observed.
The newly deduced parameters, namely, speeds of changes in the parameters with changes in the phase of the load reflect very well peculiarities of functional condition of the human body during bicycle ergometry test. The sum total of those newly deduced parameters and customary parameters reveals new functional peculiarities of the human body.
应用人体功能状态评价模型,确定篮球和足球运动员及非运动员在踏车运动试验中功能状态变化的特征。
研究人群由 266 名健康运动员和非运动员组成。研究了男性篮球运动员、男性足球运动员、男性非运动员、女性篮球运动员和女性非运动员 5 组。使用能够同步记录和分析受试者所产生的功率以及 12 导联心电图的计算机化心电图分析系统“Kaunas-load”评估心血管系统的功能状态。受试者进行基于计算机的踏车运动试验。评估静息和整个负荷期间的以下心电图参数:HR、JT 间期和反映调节和供应系统之间关系的推断 JT/RR 比值指数。测量动脉血压后,评估脉搏振幅(S-D)。还评估了反映周围和调节系统之间关系的脉搏血压比振幅(S-D)/S。还评估了生理参数在体力负荷期间的变化速度。
与健康非运动员相比,运动员在休息和负荷时的心率和 JT/RR 比值较低,休息时的 JT 间期较长,负荷时 JT 间期的缩短速度较慢。男性在休息和负荷时的脉搏动脉血压振幅高于女性。运动员的脉搏动脉血压振幅高于非运动员。男性组在休息时的相对脉搏动脉血压振幅高于女性组。女性篮球运动员在休息和负荷时的相对脉搏振幅高于女性非运动员。观察到男性和女性篮球运动员、男性足球运动员以及男性和女性非运动员的 HR、脉搏动脉血压振幅和相对脉搏动脉血压振幅变化速度的动力学有显著差异。
新推断的参数,即随负荷相位变化的参数变化速度,很好地反映了踏车运动试验期间人体功能状态的特点。这些新推断的参数和常规参数的总和揭示了人体的新功能特征。