여자유도선수들의 무산소성 운동능력과 경기 시 혈중젖산농도 변화의 특성
Characteristic of anaerobic power and blood lactate concentration immediately after judo competition in female judoka
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초록
이 연구는 여자유도선수 15명을 대상으로 무산소성운동능력과 경기 시 변화되는 혈중젖산농도의 특성을 운동생리학적 관점에서 분석하였다. 본 연구 참여자는 대한유도회에 등록되어 있는 Y대학 유도선수(경력, 6.27±1.28년; 나이, 20.27±0.96세; 체중, 59.33±6.56kg; 체지방률, 18.11±1.79%)들을 대상으로 하였으며, 임피던스 방법을 이용한 신체구성, 30초 Wingate 무산소성 검사, Wingate와 유도경기 전후에 따른 혈중젖산농도 변화를 분석하였다. 무산소성 운동능력관련 체력검사로 배근력과 악력을 추가적으로 분석하였다. 무산소성 운동능력의 종합평가를 위해 각 체력요인의 표준점수(Z_score)를 산출하여 표준점수 합을 이용하였다. 유도선수들의 배근력 94.25±13.82kg, 오른손 악력 32.86±3.46kg, Wingate 무산소성 피크파워와 평균파워는 각각 6.34±0.43watt/kg, 5.19±0.40watt/kg의 결과를 보여주었다. 무산소성 운동능력과 경기 후 혈중젖산농도 변화와 관련성은 평균파워가 r= -0.21에서 –0.42(p<0.05)로 유의한 상관관계를 나타내었다. Winagate 무산소성파워검사 후 젖산변화와 경기 후 젖산변화의 경향분석에서 회복 3분, 5분, 15분에 유의한 차이를 나타내었다(p<0.05). 무산소성 운동능력에 의한 경기 후 젖산농도변화는 회귀분석결과 유의한 관련성은 없었다. 이 연구를 통해 여자유도선수들의 신체구성과 무산소운동 능력의 특성을 알 수 있었다. 더욱이 무산소성 운동능력 특성 중 피크파워 향상을 위한 훈련방법이 조속히 도입되어야 함을 알 수 있었다.
Abstract
This study determined physiological characteristics of 15 female Judoists by analyzing anaerobic performance capacity and blood lactate concentration during games. Fifteen female Judo athletes from Y university participated in this study and all of them were registered by Korea Judo Federation (career, 6.27±1.28yrs; age, 20.27±0.96yrs; weight, 59.33±6.56kg; percent body fat, 18.11±1.79%). Body composition using impedance method, 30 sec Wingate anaerobic test, and blood lactate concentration changes before and after Wingate test and Judo games were measured. Back strength test and hand grip test were also conducted for measuring skill related physical fitness. To analyze anaerobic performance capacity assessment, Z_score of each physical fitness factor was calculated and total added Z_score was used. We found that back strength was 94.25±13.82kg, domain arm hand grip was 32.86±3.46kg, and Wingate anaerobic peak power and mean power were 6.34±0.43watt/kg and 5.19±0.40watt/kg, respectively. There was a significant relationship in anaerobic performance capacity and blood lactate concentration changes after games (r= -0.21 ~ –0.42(p<0.05)). After Wingate test and Judo games, there were significant blood lactate concentration changes in resting 3 min, 5min, and 15min phases (p<0.05). There was no significant relationship in blood lactate concentration changes before and after Wingate test and Judo games. Based upon this study results, this study determined physiological characteristics of female Judoists by recognizing body composition and anaerobic performance capacity. Moreover, it seems be needed to apply new training method for improving anaerobic peak power.
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