유산소성 트레이닝이 발레무용수의 심폐기능, 혈중피로요인 및 신체적 자기효능감에 미치는 영향
The Effect of Aerobic Training on Cardiorespiratory Function, Fatigue Factor in Blood and Physical Self-Efficacy in Ballet Dancers
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The aim of this study is to investigate the necessity and efficiency of the aerobic training via analysis of the change of cardio-respiratory function, fatigue factor in blood and physical self-efficacy in ballet dancers after 12 weeks of aerobic fitness training composed of ballet movement. The aerobic fitness training program was composed of basic ballet movement based on center enchaînement composition. 14 dancers majoring ballet were selected as subject who met the criteria of this study and experimental group(n=7) had 12 weeks of aerobic fitness training and the control group(n=7) had no training. To evaluate the change of the cardiorespiratory function of experimental group and control group, DAFT(Dance Aerobic Fitness Test) was performed before and after the training. During the test, heart rate, duration of movement, blood lactic acid concentration, blood glucose concentration were measured by factor analysis during the test. In addition, investigation using reliable physical-efficacy questionnaires was performed for measuring the physical self-efficacy. Statistical analysis of the data was performed using SPSS 12.0, between the groups and within the groups, and time series study. The results were as in the following. Firstly, when conducting DAFT after the aerobic training, the heart rate of experimental group in the stage2(p <0.05) and stage3(p <0.001) showed a significant decrease. In addition, at stage 3, the heart rate changes showed a significant difference between the groups after the training(p<0.01). Secondly, when conducting DAFT after the aerobic training, the duration of movement in experimental group has significantly increased (p <0.001), and these changes showed a significant differences between the groups as well(p<0.01). Thirdly, when conducting DAFT after the aerobic training, the blood lactic acid concentration of experimental group in the stage 2 showed a significant decrease(p<0.05). In addition, there was significant increase of blood lactic acid concentration at all-out period,recovering 15minutes(p<0.05), and recovering 30minutes(p<0.001). Fourthly, when conducting DAFT after the aerobic training, the blood glucose concentration of experimental group at recovering 15 minutes showed a significant increase(p<0.01). Fifthly, after the aerobic fitness training, there was significant improvement of perceived physical ability within the experimental group(p<0.05). In addition, as to the change of the physical self-efficacy, there was greater improvement after training in the experimental group than the control group, even though there was no statistical significance. To sum up the studies above, the 12weeks of aerobic training composed of ballet movement had positive effects during the dance performance of the ballet dancers via decreasing the heart rate and improving the duration of movement. In addition, the aerobic training had effect of lowering the blood lactic acid concentration and delaying the fatigue via retarding the timing of the abrupt increase of lactic acid. As the aerobic training increases the blood glucose concentration, it showed the positive effects on continuing the movement to assist the recovery of lactic acid. And it also improved the perceived physical ability among the physical self-efficacy factors of dancer and resulted the improvement of physical self-efficacy.
Abstract
The aim of this study is to investigate the necessity and efficiency of the aerobic training via analysis of the change of cardio-respiratory function, fatigue factor in blood and physical self-efficacy in ballet dancers after 12 weeks of aerobic fitness training composed of ballet movement. The aerobic fitness training program was composed of basic ballet movement based on center enchaînement composition. 14 dancers majoring ballet were selected as subject who met the criteria of this study and experimental group(n=7) had 12 weeks of aerobic fitness training and the control group(n=7) had no training. To evaluate the change of the cardiorespiratory function of experimental group and control group, DAFT(Dance Aerobic Fitness Test) was performed before and after the training. During the test, heart rate, duration of movement, blood lactic acid concentration, blood glucose concentration were measured by factor analysis during the test. In addition, investigation using reliable physical-efficacy questionnaires was performed for measuring the physical self-efficacy. Statistical analysis of the data was performed using SPSS 12.0, between the groups and within the groups, and time series study. The results were as in the following. Firstly, when conducting DAFT after the aerobic training, the heart rate of experimental group in the stage2(p <0.05) and stage3(p <0.001) showed a significant decrease. In addition, at stage 3, the heart rate changes showed a significant difference between the groups after the training(p<0.01). Secondly, when conducting DAFT after the aerobic training, the duration of movement in experimental group has significantly increased (p <0.001), and these changes showed a significant differences between the groups as well(p<0.01). Thirdly, when conducting DAFT after the aerobic training, the blood lactic acid concentration of experimental group in the stage 2 showed a significant decrease(p<0.05). In addition, there was significant increase of blood lactic acid concentration at all-out period,recovering 15minutes(p<0.05), and recovering 30minutes(p<0.001). Fourthly, when conducting DAFT after the aerobic training, the blood glucose concentration of experimental group at recovering 15 minutes showed a significant increase(p<0.01). Fifthly, after the aerobic fitness training, there was significant improvement of perceived physical ability within the experimental group(p<0.05). In addition, as to the change of the physical self-efficacy, there was greater improvement after training in the experimental group than the control group, even though there was no statistical significance. To sum up the studies above, the 12weeks of aerobic training composed of ballet movement had positive effects during the dance performance of the ballet dancers via decreasing the heart rate and improving the duration of movement. In addition, the aerobic training had effect of lowering the blood lactic acid concentration and delaying the fatigue via retarding the timing of the abrupt increase of lactic acid. As the aerobic training increases the blood glucose concentration, it showed the positive effects on continuing the movement to assist the recovery of lactic acid. And it also improved the perceived physical ability among the physical self-efficacy factors of dancer and resulted the improvement of physical self-efficacy.
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