운동선수의 심폐기능 및 혈중 혈당과 젖산에 관한 연구

A study about athletes’ cardiorespiratory function and blood glucose and lactate

&nbsp;&nbsp;The purposes of this study were to analyse and compare the changes of cardiorespiratory function and blood glucose and lactate in rest time and recovery period.<BR>&nbsp;&nbsp;The subject in this study were eight male gymnastic athletes(G1) and eight male soccer players(G2) of K University. During the study was measured, compared and analysed the cardiorespiratory function using treadmill and analysed the blood lactate and glucose using the YSI 2300(start plus). After all of the process we arrived to following conclusions:<BR>&nbsp;&nbsp;1. Cardiorespiratory function<BR>&nbsp;&nbsp;The maximum ventilation during exercise showed a very significant difference(p＜.01) and the predominant order of the mean value of this variable during exercise was G1 (103.4±8.41 l/min)and G2(121.9±11.36l/min). The respiratory rate in rest time showed a very significant difference(p＜.001) and the predominant values were G1(17.8±2.92n/min) and G2(13±1.07n/min). The oxygen uptake in rest time showed a significant difference(p＜.05) and the predominant values were G1(328.4±49.58ml/min) and G2(275.3±17.97ml/min), and the maximum oxygen uptake during exercise showed a very significant difference(p＜.001) and the predominant values were G1(2906.9±236.66ml/min) and G2(3814±251.37ml/min). The maximum carbon dioxide production during exercise showed a very significant difference(p＜.001) and the predominant values were G1(3827.9±418ml/min) and G2(5014.5±435.06ml/min). The oxygen uptake per weight in rest time showed a significant difference(p＜.001) and the predominant values were G1(4.7±.88ml/㎏/min) and G2(3.7±.36ml/㎏/min). The oxygen uptake per weight during exercise showed a very significant difference(p＜.001) and the predominant values were G1(45.1±2.93ml/㎏/min) and G2(54.1±4.8ml/㎏/min). The oxygen pulse in rest time showed a significant difference(p＜.05) and the predominant values were G1(4.8±.63ml/beats), G2(4.2±.39ml/beats) and the maximum oxygen pulse during exercise showed a very significant difference(p＜.001) and the predominant values were G1(15.3±1.13ml/beats) and G2(20.5±1.25ml/beats). The continuous exercise time showed a significant difference(p＜.05) and the predominant values were G1(16.24±1.67min), G2(19.98±4.16min).<BR>&nbsp;&nbsp;2. The changes of blood glucose and lactate of pre and post-excercise and recovery period: There was not significant difference of blood glucose between rest time and just after exercise and the predominant values after 10 minutes, were G1(4.3±.44mmol/1), G2(5.4±.73mmol/1) and after 20 minutes, were (4±.87mmol/1) and (5.1±.80mmol/1)respectively, and the blood glucose value showed a very significant difference(p＜.05). The blood lactate showed a very significant difference(p＜.05) and the predominant values in rest time were G1(4.5±1.42mmol/1), G2(3±.89mmol/1) and just after exercise, 10 and 20 minutes the lactate did not show significant differences.<BR>&nbsp;&nbsp;3. The systolic blood pressure showed a very significant difference(p＜.05) and the predominant values were, after 20 minutes, was G1(5.1±46㎜Hg), G2(4.2±1.69㎜Hg).