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중장거리 수영선수의 속도변화애 따른 지구성운동이 혈중젖산과 무산소성역치 수준, 심박수, 및 최대산소섭취량에 미치는 영향
남사웅,류재청 濟州大學敎 體育科學硏究所 1996 체육과학연구 Vol.2 No.-
The study was undertaken to analyls Effect of speed and endurance activitieson heart rate blood lactate. Vo₂max anaerobic(AT). OBLA and theircorelation in swimmer. Equipment for these consisted of bicycle ergometer forloading. YSI blood lactate analysis system for analysis of variables. 1. The effect to the OBLA by velocity change with endurance showed rather high correlation and negative relation to the blood lactate concentration. 2. The correlation of OBLA and blood lactate concentration showed almost linearity and rather the more stable result in heart rate, the more delay of OBLA. the correlation of Blood lactate concentraction and heart rate showed negative relation. and Vo₂ max and heart rate also.
3m 스프링보드 다이빙시 이륙동작과 이륙동작과 신체중심의 최고 도달점에 미치는 요인분석 ( I )
이창준,남사웅,류재청 濟州大學敎 體育科學硏究所 1995 체육과학연구 Vol.1 No.-
The study was undertaken to analysis takeoff motion and factor influencing to cog max height in flight phase in 3m springboard dive. for this subject participated in the study was 1 male national representive level diving athlete, was compared with "Greg Louganis" world champion in 3m spring board dive. 1. Temporal Total takeoff time was elapsed mean 0.486±0.049sec., of this 73.50±7.141% was in spring board depression with 61.75±8.05% in active push, 1.113 ± 0.0.56sec in hurdle. Depression Range of spring board was mean 66.75±4.66cm. When compared with Miller and Munro(1985), Total takeoff time wasn't difference rarely, but more elapsed in board flexion and active push, less flexion range of spring board. 2. Flexion and extension range of knee Flexion was continue to first 40% point of springboard depression, flexion range was max 120±5.77deg., max. extension of 13O± 14.14deg., 105±5.77deg. in max. springboard flexion, 171.25±7.5Odeg. at just before of board takeoff. When compared with result of Miller and Munro(1985), knee flexion degree was rather larger in springboard depression and touchdown, extension range was significantly larger than that of max depression phase of springboard and larger at Just before takeoff of board. 3. Flexion and extension range of hip Hip motion was extension of 101.25±6.29deg. in touchdown, 32.5O±15.54deg. in extension range, 133.75±17.96 deg. in last takeoff, felxion of 128.75±16.53deg. in board max. depression. when compared with result of Miller and Munro(1985), takeoff posture showed significantly unstable in overflexed trunk to vertical axis, 4. Stride length The stride length showed more length according to more sommersaulting, and more reduction in cog max height with Approach stride length of 120.50±8.42cm and max height of cog of 141.87cm, 5. Correlation of variables influencing cog rnax height Variables influencing cog max height showed active push, flexion ranges of springboard, elapsed time during hurdle, ankle, hip's extension, max ankle dorsiflexion, extension range of ankle, knee in max board depression, knee, hip extension in takeoff, trunk incline to vertical axis, projectile angle of cog., approach length as result of analysis of variables related
골프스윙에서 볼의 비행거리에 미치는 요인분석 : 1번 드라이브를 중심으로 Focused on 1st driver
김철원,오만원,류재청 濟州大學敎 體育科學硏究所 1995 체육과학연구 Vol.1 No.-
The purpose of the study was to investigate factors influencing ball flight distance in 1st golf driving, and utilize the available training data investigated. The experimental method for the purpose was cinematography with 2 camera equipped front direction(#l camera) and rear direction(#2 camera) using air-ballon synchronization method. 1. physical fitness The characteristics of physical fitness was classified Zgroup, one(OMW, KJI) was superior power, muscular strength, normal blood pressure, the other(LHJ, LHJ) was not. 2. Temporal The elapsed total time from address to full followthrough in all subjects was mean 0.321 sec., 3 phases centering on impact was elapsed 0.132 ±O.OOsec(7.29%), 0.151 ±O.O32sec (7.87%), 0.183±0.057sec.(10.67%) in order of OMW, LHJ, KJI, KJH. The acceleration analysed was transferred with adequately suited timing to ball momentum obtained during downswing in OMW, decelerated centering impact the acceleration obtained during downswing, and the other 2 subjects was mid-level timing of the former 2subjects. 3. The horizontal displacement of COG was rear direction from address to backtopswing and front direction from topswing to followthrough. On considering COG displacement in rear or front, the most stable driving was in order OMW, KJH, KJI, LHJ. 4. The cocking range of foream-shift angle, topswing was in order OMW, KJI, KJH, LHJ, continuing followthrough was performed to ball flight direction on condition of uncocking from impact to followthrough in OMW, the others pulled instantly in just later impact. The shoulder-trunk mean angle was 136±3.94deg. in topswing, 18.65±3.10deg. in just before impact, 143.00±20.04deg. in followthrough considering the resulting, OMW showed the smaller degree, but the larger trunk twist to vertical axis while LHJ, KJH showed the contrast phenomenon. The trunk-thigh mean angle was 167.20±19.80deg., characteristics analysed divided into overextended(l86±2.16deg.) in OMW, overflexed(l41± 19.49deg) in LHJ and elbow flexion was mean 126.85±21.96deg, the range was in order of OMW, LHJ, KJI, KJH.in topswing and 64.60±10.87 deg in followthrough, the, elbow flexion range was the largest but the smallest in shaft-forearm incline in OMW while shaft-forearm incline was largest but largest flexion in LHJ. 5. Trunk Incline to vertical axis showed flexible followthrough in 25.20cm, 28.40cm of OMW, LHJ, but the others almost was not. 6. The rather high relation with muscular strength and Power factor showed rather high,and negative relation(r=-.92) with elbow flexion, with trunk incline(r=.84) in followthrough in correlation between ball flight distance and variables related with driving.