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RISS 인기검색어
- 검색키워드
- 저자 : 장명재(MyungJaeJang) (검색결과 2 건)
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운동생리학: 남자대학생의 최대산소섭취량 측정을 위한 최대운동검사 부하방법의 비교분석
장명재(MyungJaeJang),이상원(SangWonLee),이만균(ManGyoonLee),공성아(SungAhKong) 한국체육학회 2002 한국체육학회지 Vol.41 No.5
The purpose of this study was to compare with the GXT protocol for maximal oxygen uptake. This study was conducted from March to April in 2002. Eight collegiate students were volunteered to participate in the study as subjects. They performed maximal treadmill exercise test according to the three GXT protocols by turns in a counterbalanced order. Maximal treadmill exercise tests were conducted in the exercise physiology laboratory of Department of Physical Education at K-University, Seoul, Korea. The maximal oxygen consumption and other variables obtained from each protocol were compared utilizing one-way ANOVA with repeated measures. When the significance was detected, post hoc test was performed utilizing LSD at .05 level of significant. The results were obtained as follows: 1) There were a significant difference in the maximal oxygen uptake, exercise time, maximal METs, and lactic acid of post maximal exercise according to the three GXT protocols(Bruce, Modified Bruce, PDI) at the .05 level of significance. 2) There was a significant difference in the maximal ventilation between PDI and Modified Bruce GXT protocol at the .05 level of significance. 3) There were no significant difference in the maximal heart rate, RQ according to the three GXT protocols. It was concluded that the development and appropriate selection of GXT protocol for specific population was very important to measure aerobic power accurately and to save the duration of the test.
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운동생리학: 고등학교 태권도 선수와 일반 학생의 무릅관절 등속성 근력에 관한 비교 연구
장완성(WanSungJang),장명재(MyungJaeJang),최현희(HyunHeeChoi),이상민(SangMinYi),이택현(TaeckHyunLee),성기석(KiSukSung) 한국체육학회 2002 한국체육학회지 Vol.41 No.5
The Korean martial sports of full-contact taekwondo has become increasingly popular among adults and children alike. In the present study, isokinetic characteristics of hamstring and quadriceps high school taekwondo athletes ware investigated using Cybex NORM. Twenty four volunteers, who twelve high school taekwondo athletes and twelve high school non athletes were participated. Knee extension and flexion were assessed at angular velocities of 60, 80 and 240 degrees/sec. Taekwondo athletes`s peak torques were significantly higher than those of non athletes in flexion at all angular velocity and left knee extension at 60 degrees/sec. Average power of taekwondo athletes were significantly higher than those of non athletes in flexion at all angular velocity. Average power percent body weight of taekwondo athletes were significantly higher than those of non athletes in flexion at all angular velocity and extension at 60 degrees/sec. Flexor/Extensor ratio of taekwondo athletes were significantly higher than those of normal student in both of flexion and extension at all angular velocity. Angle of peak torque of taekwondo athletes were significantly higher than those of non athletes in right flexion at 180 and 240 degrees/sec. Base on the results of present study, it is suggested that taekwondo athletes must strengthening their extensor for preventing injuries and progressing performance.
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