최대운동시 농구선수의 무산소성 역치, 혈액성분 및 적혈구의 조직학적 변화에 미치는 영향

Abstract

This study was to investigate the effects of maximal exercise on anaerobic threshold, blood components and hematological change of RBC (red blood cell) at pre, post-exercise and recovery stage between basketball players and non-athletics players. Fifteen university basketball players and fifteen collegians were completed 3-min stage graded maximal treadmill exercise with bruce protocol. Bruce protocol was applied to collect the data for the anaerobic threshold. The measurement in this study was pre-exercise, post-exercise and recovery stage. Blood samples were collected at prior, immediately after exercise and recovery 30 min stage. Red blood cell count and hemoglobin were measured by an automatic blood cell counter(Abx Micros 60). Also, Blood cell morphological erythrocyte were evaluated in Wright`s stained blood films and SEM. The numbers of total abnormal erythrocyte in the blood were measured by the direct smear made from light microscope with wright`s staining and screen electron microscope (SEM) and analyzed with image analysis system to make a morphological analysis of the effect of maximal exercise. Statistical analysis was performed with SPSS ver 12.0. All data were presented as means ± standard deviation. There was significant differences in anaerobic thresholds measured by AT/time, AT/VO2max, AT/VO2ml/kg·min. Based on the finding of the study, the following conclusion has been obtained. First, the change of blood lactate showed significantly difference between times and groups. Second, the change of RBC and hemoglobin non significantly difference between times and groups. Three, the change of ESR and abnormal erythrocyte showed significantly difference between times and groups. There was significant increase ESR and abnormal erythrocyte at post exercise compared to pre-exercise. Also, there was significant decrease ESR and abnormal erythrocyte at recovery stage compared to post-exercise. Specially, ESR and abnormal erythrocyte value at post-exercise were significantly higher non-basketball players compared to basketball players. In the present results, It can be suggested that acute maximal exercise can influence hematological variables and induce oxidative damage to erythrocyte at non-basketball players compared to basketball players. From the results of the study, maximal exercise influenced individual working ability and efficiency of exercise.