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- 저자 : 표재환(JaeHwanPyo) (검색결과 3 건)
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스포츠생리학 : 편마비 환자의 마비기간에 따른 골격근 섬유의 형태
표재환(JaeHwanPyo),오재근(JaeKeunOh),김창근(ChengKeunKim) 한국체육학회 1999 한국체육학회지 Vol.38 No.3
이 연구는 편마비 환자의 마비기간에 따른 골격근 형태 및 기능을 평가하기 위하여 마비기간이 1년에서 26년까지의 편마비 환자 8명을 대상으로 마비된 하지와 정상적인 하지를 대조하였다. 근육 샘플은 대퇴사두근의 팽대부에서 적출하여 분석하였다.편마비 환자의 마비된 하지와 정상하지의 근섬유 분포비율은 Type I 섬유에서 마비된 하지가 44%로 48%인 정상하지와 차이가 없었다. 그러나, 편마비 환자 개개인의 경우 마비된 하지와 정상하지의 근섬유 비율에서 마비기간에는 관계없이 마비된 하지의 Type I 섬유의 비율이 낮은 반면에 Type II 섬유는 높았다. 마비된 하지와 정상하지의 평균 횡단면적은 마비된 하지가 정상하지에 비해 작았다. 마비된 하지의 섬유당 모세혈관수는 정상하지에 비해 적었으나, 확산면적에는 차이가 없었다.근기능은 마비된 하지가 정상하지에 비해 굴근과 신근 모두에서 근력 및 근파워가 낮은 것으로 나타났다.이상의 결과를 요약하면, 편마비 환자들의 근섬유 특성과 기능에서 근섬유의 적응은 일정시기가 경과되면 마비기간보다는 개인의 신체활동의 정도와 보다 밀접한 관련이 있는 것으로 사료된다. The activity of motoneurons determines the properties of the muscle fibres. Muscle sample was obtained from vastus lateralis muscle. The paraplegic patients were volunteered as subject in the present study. Their paralytic period ranged from 1yr to 26yrs. Muscle strength and power was determined using Cybex. No difference was found in the proportion of Type I fibers between the paralytic and the normal thighs. However, the mean cross-sectional area was smaller in the paralytic thigh than the normal thigh, and no significant difference between two thighs. Capillary density was lower in the paralytic thigh than the normal thigh, thus smaller size of diffusional area in paralytic thigh.Muscle function was significantly lower in the paralytic thigh than the normal thigh. In conclusion, there was no clear relationship between the paralytic periods and the proportion of the muscle fiber types and it may rather be determined from the physical activity and age for muscle function and morphological characteristics.
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운동생리학 : 경기 전 훈련형태가 경영선수의 경기력과 leptin, insulin 및 free fatty acids 농도에 미치는 영향
김효식(HyoSikKim),표재환(JaeHwanPyo),최강진(KangJinChoi),이병두(ByungDooLee) 한국체육학회 2004 한국체육학회지 Vol.43 No.3
The purpose of this study was to determine the effects of training patters on serum leptin, insulin and plasma free fatty acids(FFA) as well as swim performance in highly competitive swimmers. Foruteen highly trained collegiate male swimmers were recruited and divided into two groups: either taper group (EXT: 19.86±1.57yrs: 175.86±4.10cm) or non-taper group (CON: 19.86±1.3Syrs 179.13±6.16cm). Subjects in EXT performed three training protocols which was 2 weeks de-training period, 8 weeks normal training period and 2 weeks taper period, while subjects in CON performed only two training protocols that consisted of 2 weeks de-training period and 10 weeks normal training period. Each training sessions were completed, all subjects undertook 100m sprint swimming and blood samples were taken for leptin, insulin and FFT concentration measurement.Following taper period, there was a not significantly faster 100m sprint swimming performance in EXT compared to CON. Sprint swimming record was also not significantly improved following taper period compared to normal exercise training period in EXT (56"70±2.03 second for normal training period vs. 55"99±2.11 second for taper period).The concentration of resting leptin, insulin and FFA from EXT was not significantly changed but FFA concentration was significantly altered in CON which did not have taper period. In conclusion, serum leptin and insulin concentration were not sensitive to prolonged intensity training and FFA was changed that training volume and duration these data suggest that leptin may not be useful in monitoring relative swim training stress in highly competitive swimmers.
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운동생리학 : 장시간의 운동이 노화에 따른 쥐 근육 내 pro- 및 macro-glycogen 동운에 미치는 영향
어수주(SuJuEo),이종삼(JongSamLee),조인호(InHoCho),표재환(JaeHwanPyo),박수연(SooYeonPark),김효식(HyoSikKim),이장규(JangKyuLee),김창근(ChangKeunKim) 한국체육학회 2005 한국체육학회지 Vol.44 No.5
The purpose of this study was to examine that the effect of one single bout of prolonged exercise on pro- and macro-glycogen mobilization in aging rat skeletal muscle. Forty eight rats were used and divided into three groups by age; 0 week (n=16), 16 weeks (n=16), 32 weeks (n=16). Each experimental group was further divided into two subgroups; either control (n=8) or exercise (n=8). All animals in exercise groups performed one bout of 3hr swimming exercise (30min × 6bouts). One week before the animals were sacrificed, oral glucose tolerance test (OGTT; 2 grams of glucoseㆍkg<sup>-1</sup> of body mass) was undertaken. At pre-determined time points, the animals were anesthetized by inhalation of ether, and red vastus lateralis muscle was rapidly dissected out and used for total glycogen content as well as pro- and macro-glycogen content measurement. Body mass was significantly heavier in 16wk (302.0±11.1 g) and 32wk (325.7±10.1 g) compared to 0wk (117.8±0.9g), but it was not statistically different between 16wk and 32wk. Three hours of swimming exercise significantly lowered plasma glucose concentration in all experimental groups (p<.001). Resting insulin concentration was only significantly different between 0wk and 32wk (not 16 wk). In aspects of serum insulin concentration, it was the highest in 32wk, and was the lowest in 0wk after 3hr swim exercise. Although resting total glycogen concentration was not significantly different among experimental groups, proglycogen concentration was significantly increased and macroglycogen concentration was significantly decreased in aged muscle. Although 3hr of swim exercise significantly lowered muscle PG content, MG level was not significantly altered. In summary, as aging process continued, PG concentration was increased and the degree of mobilization was continuously increased. This implies that PG may play a major role for energy production during prolonged exercise in aged rat skeletal muscles.
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