Jump 트레이닝이 쥐(RAT)의 뼈 형태 및 강도에 미치는 영향

이신언,유덕수,임정일 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.2

Structural and mechanical adaptations of the femur and tibia to jump and run training were investigated in female Fischer 344 rats. Rats aged 4 week were trained for 8 weeks after 1 week of stabilization. In experiment A, the forced run-trained (speed : 30m/min, duration : lh/day)group was compared with the control group. In experiment B, voluntary run and jump-trained (height : 40㎝, 100 times/day) group were compared with the control group. The limb bones of the jump-trained group had greater cross-sectional areas and greater maximum load in a fracture test than the limb bones of the control group, but there was no significant difference in bone length between the jump-trained group and the controls. The bone adaptations to forced running and voluntary running were similar. The limb bones of both run groups were longer than those of each control group. The cross-sectional areas and the maximum load in the run-trained groups were greater than those in each control group but less than those in the jump-trained group. The present results indicate that bone adaptations to jump training and run training differ and that jump training is more effective for building stronger bones.

건강여성의 최대산소섭취량, 혈청지질, 체조성, 골밀도의 가령변화 및 습관적 운동의 영향

이신언,김대경,육조영 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.1

The results were as follows: 1. VO₂max(r=-0.590) and HRmax(r= -0.632) decrease significantly with age. The VO₂ max of the EX group was significantly higher than that of the Cont group in all each groups. However no differences in the aging process in terms of HRmax were found between the two groups. 2. Resting SBP(r=-0.391) and DBP(r=0.315) increase significantly with age. However no hypertensive individuals(160/95mmHg~) were found among the 165 subjects. 3. Only serum TC(r=0.346) and L㎗-C(r=0.339) among the blood constituents measured changed with age. No changes in serum H㎗-C were detected with age. Lower TC (189.2±23.3mg/㎗) and higher H㎗-C(72.2±10.9mg/㎗) were observed in eleven runners (49.7±7.7years) among the subjects who participated frequently in official races than in subjects of the same ages in the Cont group. The highest serum H㎗-C(75.8±15.8mg/㎗) and H㎗-C/TC ratios(0.362) were noticed among the subjects(n=26) who both regularly exercised and consumed alcoholic beverages. 4. A tendercy for FTM to increase and LTM to decrease with age were observed in both groups, and a lower %FTM(percentage of FTM to body weight) and higher %LTM were evident in the Ex group. Differences in %FTM and %LTM between the Ex and Cont groups at 40~45 years were significant. 5. Partial and whole BMDs decreased significant with age(TBMD-Age: r=-0.527). Significantly higher leg BMDs in both the 20~39-year and 40~45-year groups, and spine and TBMD in the 20~39 years in the Ex group, who were premenopausal women, were shown. No significant differences in BMDs between the two groups were observed in postmenopausal women, but the Ex group tended to have higher partial and whole BMDs. The postmenopausal official race runners (n=5,52.6±1.5 years) also had higher TBMD and leg BMD values than subjects of the same ages in the Cont group. 6. Investigation of correlations between V02max, LTM, FTM, BMDs and serum lipid concentrations, yielded a significantly higher correlation(r=0.669) between LTM(㎏) and absolute V0₂max(l/min). Although VO₂max per LTM(VO₂max/LTM) decreased with age(r=-0.595), VO₂max/LTM in the Ex group significantly higher than in the Cont group in each age group. The VO₂max per body weight(㎖/㎏/min) was negatively correlated with %FTM(r=-0.442) and positively correlated with %LTM(r=0.422). There were no correlations between VO₂max and serum TC levels or H㎗-C concentrations. BMD was strongly correlated with body weight, especially LTM, in addition to the aging process. VO₂max per body weight was not always highly correlated with TBMD(r=0.354, p<0.001). Stepwise multiple regression analysis yielded the following regression equations: TBMD(g·cm^-2)=0.9525-0.0045xAge+0.0059×FTM(㎏)+0.0072xLTM(㎏) VO₂max(㎖· ㎏^-1· min^-1)=47.97-0.391×Age+0.175xLeg BMD-0.531×%FTM(%)

레지스탕스 트레이닝에서 고속도 운동이 근횡단 면적 및 운동속도에 미치는 영향

이신언,조규상,한권상 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.2

A conducted to determine 1) the effect of high-velocity mowement in resistance training with a constant load on the velocity of movement after training and 2) the differences in the effect on muscle hypertrophy according to training velocity. Fourteen of the total subjects (male ; n=10, female ; n=7) were placed in the experimental group and agreed to participate in 8 weeks of training sessions(4 times a week). Five of the 17 subjects were in control a group before the training session. Subjects perfrmed elbow extension and flexion exercise using 50% of one repetitions and 30s of rest was taken between the sets. The subjects in the experimental group trained their arms using two different protocols ; one was high-velocity movement performed as rapidly as possibl(Type R), the other was low-velocity movement performed at a constant and slow velocity(Type R), the other was low-velocity movement performed at a constant and slow velocity(Type R), the other was low-velocity movement performed at a constant and slow velocity(Type S). Isokinetic torque in elbow flexion was measured at angular velocities of 60, 180, 300 deg/s, respectively, during elbow flexion performed under different constant loads of 0, 30, 50% 1 RM, and the muscle cross-sectional area(CSA) of the elbow flexor was determined before and after training. It was found that Type R did not increased isokinetic torque at 300 deg/s significantly after training. However, the increase in angular velocity of elbow flexion in Type R exercise tended to be higher than in Type S exercise. The increased in CSA [Type S ; 11.2%, Type R ; 14.2%] was significantly higher in Type R exercise(p<.05). These results suggest that high-velocity movement with a constant load in resistance training might increase the angular velocity of movement in the same mode, but might not produce a change in isokinetic strength, which involves a different mode of muscle contraction. Muscle hypertrophy would be induced to a greater extent by. high-velocity movement than by low-velocity movement in resistance training with a constant load.

지구운동 후의 식사조성이 근중성지방과 지구운동의 성과에 미치는 효과

이신언,오이표,김한수 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.5

This study was carried out for the purpose of examining the effect of eating on muscular neutral fat and outcome of persistent exercise. Seven men who were taking persistent training had 2 hours of cyclying exercise at an intensity of 65%VO₂max, Thereafter the examinees took meals containing high level of sugars and fats and then carried out 1600kJ by self pace after fasting 12 hours. In the Performance taken 2 hours before starting cycling training (33.0+/- 2.3 vs. 37.0 +/- 2.1mmol/㎏ dry weight ) and in the Performance taken thereafter (30.9+/- 2.4 vs. 32.8+/- 1.6 mmol/㎏ weight) there was no difference in muscular neutral fat. However eating more fatty food showed higher value of muscular neutral fat prior to 2nd self paced exercise in comparison with taking more sugary food. (44.7+/- 2.4 vs. 27.5+/- 2.1 mmol/㎏ dry weight). In terms of outcome of self-paced cycling training Performance where highly fatty food was taken showed significant decline, This outcome did not show any significant change in muscular neutral fat before and after cycling training of medium level intensity but it was observed that absorption of highly fatty food heightened accumulation of muscular neutral fat rather than taking highly sugary food.

고령자의 근력 및 전신이동능력과 일상생활의 주관적인 활동능력과의 관련성 분석

이신언,조병섭,한권상 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.6

The purpose of this study were (1) to determine the changes in functional fitness with aging, and (2) to assess the relationship of muscular strength and locomotion ability with subjective functional fitness. The subjects were 479 Korean women(65+ years) living in Seoul, Taegu, and Jinju cities. Korea. The average age was 72.0±4.8. Thirteen objective functional fitness items and 11 subjective functional fitness questionnaire items associated with their daily living were measured. Results of data analysis indicated that the muscular strength and locomotion ability decreased considerably with aging. The relationship between the objective functional fitness and the subjective functional fitness was significant in 10 items. It is suggested that maintenance and promotion of muscular strength and locomotion ability may be important in order to raise the level of independence in daily living of older Korean women.

Full mouth rehabilitation of severely worn dentition with implants and removable partial dentures

이신언,이원섭,이철원,이수영,Lee, Shin Eon,Lee, Won Sup,Lee, Cheol Won,Lee, Su Young The Korean Academy of Prosthodonitics 2018 대한치과보철학회지 Vol.56 No.1

과도한 치아 마모는 수직 고경 감소를 초래하고 구강 환경과 저작계의 병적 변화를 유발할 수 있다. 수직 고경과 교합을 회복시켜주기 위해서는 정확한 진단과 분석이 필수적이다. 본 증례에서는, 75세 여성환자로 구치부 지지 상실로 인한 치아 심한 마모가 관찰되었다. 따라서 수직 고경 거상을 동반한 전악 재건 수복을 계획하였다. 정확한 임상적 방사선학적 검사, 수직 고경 평가 후 진단 납형을 제작하였고 임시보철수복을 통해 환자의 적응여부를 평가하였다. 최종 수복은 환자의 경제적 상황을 고려하여 가철성 국소의치를 제작하였으며 하악 좌우측 구치부에 임플란트를 한 개씩 식립하여 국소의치의 지지와 유지를 보강하였다. 최종 수복물 장착 후 1년 간의 경과관찰 기간 동안 기능적, 심미적으로 만족할 만한 결과를 보였다. Excessive tooth wear can lead to decrease in occlusal vertical dimension and can cause pathological changes in the oral environment and masticatory system. When recovering occlusal vertical dimension and occlusion, accurate diagnosis and analysis are essential. This clinical case describes a 75-year-old woman with severely worn dentition due to loss of the posterior support. Full mouth rehabilitation with occlusal vertical dimension increment was planned. Clinical and radiographic examinations, occlusal vertical dimension evaluation, and diagnostic wax-up were performed and patient adaptability was evaluated using provisional restorations. As for definitive restoration, considering economic condition of the patient, removable partial denture was fabricated and solitary implants were placed in the mandibular left and right posterior region to increase support and retention of the removable partial denture. During one year of follow-up, functional and esthetic outcomes were observed satisfactory.

韓國 貧窮文學에 關한 연구 - 崔鶴松을 中心으로 -

申彦澈(신언철) 한국언어문학교육학회 1996 한어문교육 Vol.4 No.-

지구성 트레이닝이 하대정맥 횡단면적에 미치는 영향

이신언,주희철,윤찬호 한국스포츠리서치 2001 한국 스포츠 리서치 Vol.12 No.4

6주간 지구적 트레이닝에 의한 대정맥에 있어서 횡단면적의 증가와 같은 형태적 적응이 유발된다는 사실이 명백히 밝혀졌다. 그리고 이러한 지구적 트레이닝에 따른 대정맥 횡단면적의 증가율은 대동맥의 증가율보다 컸다. 이러한 지구적 트레이닝에 대한 대정맥형태의 적응은 운동중의 활동근과 심장사이에서의 혈액환류를 효율화하고 전신지구력의 향상에도 부분적으로 기여하는 것으로 생각된다. A study was conducted to determine non-invasively the effects of endurance training on the size of the inferior vena cava in humans. Twelve healthy male subjects were assigned to either and exercise-trained group(ET, n=14) or a sedentary control group(S, n=10). The ET group underwent cycle-endurance training for 8 weeks(80% Vo2max, 40min/day, 4days/week). The S group led normal lives during the 8-week period. Before and after the training period, cross-sectional areas(CSA) of the inferior vena cava and the ascending and abdominal aorta were measured by echography. The CSA of the inferior vena cava after training was no significant difference in the S group. hese results indicate that the inferior vena cava can be morphologically altered as an adaptive response to endurance training. We consider that this adaptation partly contributes to the improvement in the efficiency of venous the aorta, the degree of change was smaller than that seen in the inferior vena cava, implying that the factors of adaptation and adaptability to endurance training in the inferior vena differ from those in the aorta.

韓國 近代리얼리즘論 硏究(上)

申彦澈(신언철) 한국언어문학교육학회 1993 한어문교육 Vol.1 No.-

근력 트레이닝에서의 주기구조에 관한 연구

이신언,임완기 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.6

The purpose of this study was to investigate the influence of length of training cycle("bulk-up type" and "power-up type") on the development of muscle cross-sectional area, muscle strength, anaerobic power and anaerobic endurance. Ten male college stedents were divided into a long term group(n=5) and a short term group(n=5). Both groups performed squat, lunge walk and leg curl exercise twice a week for 8 weeks, with the long term group performing 4 weeks of bulk-up type training followed by 4 weeks of power-up type training and the short term group performing alternating 2 week periods of bulk-up type and power-up type training. A comparison between the long term group and the short term group after eight weeks showed: (1) There was no difference between groups in CSA. (2) The long term group improvee in muscle strength at low speeds. (3) The short term group improved in muscle strength at high speed. (4) The long term group showed greater improvement in anaerobic endurance.