关键词: 体育木地板, 运动生理生化, 血乳酸, 血清肌酸激酶, 功能性

Abstract:

Objective: The relativity between physiology and biochemistry indexes of athletes and functional property of wooden sports flooring was carried out on the basis of the interactions between athletes and wooden sports flooring. A method has been established about comparing the functional property of wooden sports flooring through sports physiology and biochemistry indexes. Method: Three typical different samples of wooden sports flooring with different structures (the structure with double keels, the structure of single keel and the removable structure) were chosen as the tested objects. The exercising process was carried out under the same exercise pattern and two levels of exercise intensity (low exercise intensity when heart rate arriving 110-120 beats per minute, and high exercise intensity when heart rate arriving 170-180 beats per minute). The relative physiology and biochemistry indexes of the athletes were tested, including the immediate blood lactate concentration(BLC), Borg ratings of perceived exertion(RPE) and serum creatine kinase(CK). Then, the ANOVA analysis and non parametric analysis were used to judge whether there is a significant difference between the test values or not. Result: 1) Under the conditions of fixed exercise pattern, the structure of wooden sports flooring and the exercise intensity both have significant influences on BLC of the athletes. The BLC values of the athletes completing the fixed exercise on the wooden sports flooring of the structure with double keels are significantly higher than the values gathering from the other two samples, under the low exercise intensity. 2) The Borg ratings of perceived exertion(RPE)method is used to evaluate the status of athletes after completing the fixed exercises. The results showed that the athletes on the structure with double keels subjectively feel most tired under the low exercise intensity. The RPE results of this structure are obviously higher than those of the other two samples. 3) Under the conditions of fixed exercise pattern, the structure of wooden sports flooring and the exercise intensity both have no significant influences on CK. Conclusion: There are correlations between physiology and biochemistry indexes of the athletes and the functional properties of wooden sports flooring. The method about comparing the functional property of wooden sports flooring through sports physiology and biochemistry indexes is feasible. The method is that under low exercise intensity, the athletes complete the same continuously hurdling on the wooden sports flooring with different structures. Then the BLC and RPE would be tested. The BLC values are analyzed through ANOVA method or non-parametric Kruskal-Wallis test in order to judge whether there is a significant difference between the BLC values of the athletes who completing the exercise on different structures of wooden sports flooring or not. Then the order of the functional property of wooden sports flooring from high to low could be decided according to the order of RPE values from high to low too.

Key words: wooden sports flooring, sports physiology and biochemistry, blood lactate concentration(BLC), creatine kinase(CK), functional properties