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운동부하 방법에 따른 수영선수들의 LT 및 OBLA에서의 심박수 반응 분석
류경화 ( Kyoung Hwa Ryu ),박동호 ( Dong Ho Park ),윤성원 ( Sung Won Youn ),정동식 ( Dong Sik Chung ) 한국스포츠정책과학원(구 한국스포츠개발원) 2003 체육과학연구 Vol.14 No.2
본 연구는 수영과 트레드밀에서 각각 최대 점증부하 테스트를 실시하여 두 가지 각기 다른 형태의 테스트에서 얻은 LT와 OBLA(2.0mM/L, 4.0mM/L) 지점에서의 심박수 범위를 산출, 비교함으로서 트레드밀에서 얻은 LT 혹은 OBLA를 실제 수영 훈련의 운동강도 설정에 이용할 수 있는지를 규명하고자 7명의 고등학교 수영 선수를 대상으로 점증적 운동부하 검사를 실시하였다. 수영에서는 200m 구간의 최고 속도에서 얻은 기록에 35초를 더한 기록을 1단계로 설정한 후, 다음 단계부터는 5초씩 줄여가며 속도를 증가하여 총 7단계를 마쳤고, 트레드밀에서는 경사도를 0˚로 고정한 상태에서 초기속도는 150m/min으로 각 단계마다 20m/min의 속도를 증가시켜 총 7단계를 실시하였다. LT와 OBLA에 상응하는 심박수와 운동부하 방법간의 속도의 범위차를 검증하기 위해 paired t-test를 이용하였다. 연구 결과로서 LT점에서의 심박수는 수영과 트레드밀간에 유의한 차이를 보였고(수영=123.29bpm, 트레드밀=137.00bpm), 2.0mM/L에서의 심박수도 수영과 트레드밀간에 통계적으로 유의한 차이를 보였으나(수영=118.86bpm, 트레드밀=130.00bpm), 4.0mM/L에서의 심박수는 통계적으로 유의한 차이가 나타나지 않았으며(수영=145.10bpm, 트레드밀=151.43bpm, 3.62%차이), 심박수의 반응이 두 개의 각기 다른 형태의 테스트(트레드밀 vs 수영 테스트)에서 비슷하게 나타났다. 따라서 점증부하 테스트 방법이 다르더라도 수영선수들의 유산소성 운동능력을 향상시키기 위해 트레드밀에서 얻은 특정 혈중 젖산농도(4.0mM/L)를 운동강도 기준으로 설정하여 그에 상응하는 심박수를 산출하여 적용함으로써 수영선수에게 수중에서의 트레이닝뿐만 아니라 지상에서의 트레이닝에 적용하여 활용할 수 있을 것이다. The purpose of this study to identify whether the lactate threshold(LT) or onset of blood lactate accumulation (OBLA: 2.0mM/L and 4.0mM/L of lactate concentrations) obtained from the graded exercise test(GXT) of treadmill as the use of a training intensity for swimming or not. Seven swimming players in "S" high school were recruited and conducted GXT both on the treadmill and in the swimming pool: 1) swimming test (SW): the stage I of swimming protocol was determined by adding 35 seconds(s) to a record obtained from 200 meter` top velocity. The velocity of swimming continuously was increased by subtracting 5 s from each subsequent stage until 7 stages. 2) treadmill test (TM): treadmill protocol was a continuous, graded, horizontal run test. Each stage was 2min in duration, with an initial velocity of 150mㆍmin-l which increased 20mㆍmin-l for each subsequent stage. The grade of the treadmill remained unaltered during the test. The paired t-test was used to identify the differences of heart rates per min at the intensities of LT and OBLA obtained from both GXT of treadmill and swimming pool. Significant differences existed between exercise modalities(SW vs. TM) for heart rates per minute values at LT (SW: 123.29bpm vs. TM: 137.00bpm, p<.05), 2.omM(SW: 118.86bpm vs. TM: 130.00bpm, p<.05) and maximal exercise(SW: 183.l0bpm vs. TM: 195.70bpm, p<.001), respectively. However, no significant difference was found between exercise modalities(SW vs. TM) for heart rates per minute values at 4.0mM/L(SW: 145.lbpm vs. TM: I 51.43bpm, 3.62% difference). It was concluded that exercise modality may do not affect the heart rate per min at 4.0mM/L and that a similar heart rate response exists between the two modalities. Therefore, the heart rate value at 4.0mM/L obtained from the TM could be applied to a criterion of swimming players` exercise intensity for improving their performance.
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조깅의 형태가 에너지 소비량 및 호흡순환계에 미치는 영향
김원중 ( Won Jung Kim ),류경화 ( Kyoung Hwa Ryu ) 건국대학교 교육연구소 2002 교사와 교육(구 교육논집) Vol.26 No.-
The purpose of this study was to investigato the effect of forwad, backward and lateral jogging on the change in energy exoenditure and cardiovascular function(HR, VE, RR, VO2). twelve male students majoring in physical deucation were selected as subjects and performed forward jogging(FJ), Backward jogging(BJ), and lateral jogging(LJ) at 134.04M·min-1 for 3 minutes. The result were as follows: 1. Energy during 134.08M·min-1 BJ and LJ were significantly higher than FJ. 2. HR during 134.08M·min-1, LJ was significantly higher than FJ. 3. VE during 134.08M·min-1, there was no significantly different among FJ, BJ and LJ. 4. RR during 134.08M·min-1, BJ and LJ were significantly higher than FJ. 5. VO2 during 134.08M·min-1, BJ and LJ were sinificantly higher than FJ. 6. R during 134.08M·min-BJ and LJ were significantly higher than FJ. 7. RPE during 134.08M·min-1, BJ and LJ were significantly higher than FJ. In conclusion, it was speculated that energy enpenditure was higher during backward and lateral jogging than during forward jogging at the same speed of treadmill.
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전면, 후면, 측면 보행에 따른 에너지 소비와 호흡순환기능의 변화
김원중(Kim Won-jung),류경화(Ryu Kyoung-hwa) 한국체육과학회 2002 한국체육과학회지 Vol.11 No.1
This investigation was designed to examine the effect of forward, backward and lateral walking on the change in energy expenditure and cardiovascular function. Twelve physically active males performed Forward walking(FW), Backward Walking(BW) and Lateral Walking(LW) at 3.0mph for 3 minutes. A repeated measured ANOVA was used for statistical analysis(P<.05) The results were as follows: Energy expenditure during LW was significantly higher than FW and BW(P<.01). VO₂ during LW was significantly higher than FW and BW(P<.01). VE during LW was significantly higher than FW and BW(P<.05). HR during LW was significantly higher than FW(P<.01). RR during BW and LW were significantly higher than FW(P<.01). RPE during BW and LW were significantly higher than FW(P<.01). In conclusion, it was speculated that energy expenditure was higher during backward and lateral walking than forward walking of treadmill.
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