Effects of Feedback on Motor Learning 인문·사회과학편 : 결과(結果)의 지식(智識)이 운동학습(運動學習)에 미치는 영향(影響)
전유섭YuSupJun
26(1) 5-13, 1987
Title
Effects of Feedback on Motor Learning 인문·사회과학편 : 결과(結果)의 지식(智識)이 운동학습(運動學習)에 미치는 영향(影響)
전유섭YuSupJun
DOI:
Abstract
The purpose of this study was to find out whether there is any effect of feedback on motor learning.
Upon total sixty male students of SANG GI COLLEGE were used as subjects and devided into three groups:
1. Knowledge of results I group
2. Knowledge of results II group
3. Control group
Each group practiced learning to hit the target by tennis ball.
Knowledge of results I, II groups was given knowledge of results.
But control group was not given it.
The statistical methods were used mean, standard deviation, pearson`s correlation, anova test.
Some of the major finding are as follows :
1. Knowledge of results I group showed a significant improvement in motor learing.
2. Knowledge of results II group showed a little improvement in motor learning.
3. Control group showed not improvement in motor learning.
Key Words
A Study of Proprioceptive Sensitivity for Motor Skills (According to classified skills for open versus closed dimension) 인문·사회과학편 : 운동기능유형별(運動技能類型別) 자기수용성(自己受容性) 민감도(敏感度)에 관한 연구(硏究)
김진환JinHwanKim
26(1) 15-21, 1987
Title
A Study of Proprioceptive Sensitivity for Motor Skills (According to classified skills for open versus closed dimension) 인문·사회과학편 : 운동기능유형별(運動技能類型別) 자기수용성(自己受容性) 민감도(敏感度)에 관한 연구(硏究)
김진환JinHwanKim
DOI:
Abstract
The purpose of this study was to know the individual differences of proprioceptive sensitivity for classified by using types of motor skills. The subjects divided into athletes of open-skill, closed-skills and non-athletes have been tested by provision of arm positioning test, hand resisting test and static balancing test.
The results were as follows;
1. The individual differences for proprioceptive sensitivity have been produced by learned sports experience
2. The differences for proprioceptive sensitivity for classified by events of sports depend on types of motor skills.
3. Total proprioceptive sensitivity could not simplified by using combination of each different test results.
Key Words
Study of Curriculum of Physical Education through the Historical Evidences 인문·사회과학편 : 사증(史證)을 통(通)한 체육교육과정(體育敎育課程)의 탐색(探索)
박종욱JongWookPark
26(1) 23-31, 1987
Title
Study of Curriculum of Physical Education through the Historical Evidences 인문·사회과학편 : 사증(史證)을 통(通)한 체육교육과정(體育敎育課程)의 탐색(探索)
박종욱JongWookPark
DOI:
Abstract
1. Purpose
The purpose of this study is to understand the phrases of the times on the change of the curriculum at the middle school through the historical survey and to represent the future-oriented materials of physical education
2. Method
The main study analysis and examimes the changing process of the physical education curriculum through the docmental investigations based in the contents of curriculum showed on the basis of each time since 1945 by the following methods.
3. Results
As a result of analyzing and comparing the organization and contents of each curriclum by classifying our nations changing process of athetics department curriculum on the basis for each times, I obtained the following conclusions.
Key Words
Changes of the Heart Rate and Blood Pressure in Recovery Period by Circuit Training 자연과학편 : Circuit Training에 의(依)한 회복기(恢復期)의 심박수(心搏數)와 혈압(血壓)의 변화(變化)
이이재IeJaeLee
26(1) 35-45, 1987
Title
Changes of the Heart Rate and Blood Pressure in Recovery Period by Circuit Training 자연과학편 : Circuit Training에 의(依)한 회복기(恢復期)의 심박수(心搏數)와 혈압(血壓)의 변화(變化)
이이재IeJaeLee
DOI:
Abstract
Making 61 players of man-colleger and31 non-player off sports exercise by event an object of the heart rate and blood pressure in rest, examing and also putting on maximal burden by circuit training and examing the heart rate and blood pressure, the result of comparative analysis indicates as follows.
1) In case of rest, the heart rate indicates 69±7.1 beats/min. the highest for a group of shooting players.
2) In case of burdening by circuit training, recovery ratio of the heart rate indicates 90.0% the fastest for a group of track player and indicates 73.6% the slowest for a group of non-trained collegers.
3) Recovery of blood pressure shows rapid decrease in systolic blood pressure of all groups soon after exercise burbening, on the other side, in diastolic blood pressure shows momentary decrease right beforem the end of exercise and at the same time shows rapid increase soon after and of exercise.
4) Recovery pace of blood pressure shows normal recovery the fastest from 3 minutes after end of exercise in group of track, foot-ball, boxing and shows normal recovery the slowest form 20 minutes after and of exercise in student groups of non-players respectively.
Key Words
A Study on the Attack Patterns of World's Top Volleyball Teams and the Korean National Team 자연과학편 : 세계(世界) 남자(男子) 배구(排球) 상위(上位) 팀과 한국(韓國) 국가대표(國家代表) 팀의 공격형태(攻擊形態)에 관(關)한 연구(硏究)
최희남HEENAMCHOI
26(1) 47-60, 1987
Title
A Study on the Attack Patterns of World's Top Volleyball Teams and the Korean National Team 자연과학편 : 세계(世界) 남자(男子) 배구(排球) 상위(上位) 팀과 한국(韓國) 국가대표(國家代表) 팀의 공격형태(攻擊形態)에 관(關)한 연구(硏究)
최희남HEENAMCHOI
DOI:
Abstract
The purpose of this study was to analyze the attack pattern of Korea with the U.S.A, U.S.S.R, and Bulgaria male national Volleyball teams, who are expected to be the top contenders in ‘88 Seoul Olympic games. To accomplish it, the researcher recoreded on V.T.R the 2nd FIVB International Cup and The 10th Asian games. The results were as follows:
1. Serve Receive Formation.
U.S.A
1) The serve was received by tow fixed receivers.
2) The serve receive formation is depicted in fig-2.
U.S.S.R
1) The serve receive formation was aimed setting up a quick spike.
2) The serve receive formation is depicted in fig-4.
Buigaria
1) The serve receive formation was aimed at receiving a strong serve.
2) The serve receive formation was similar to that of the U.S.S.R.
Korea
1) The serve receive formation was the traditional pattern called the 1.5(0.6) formation.
2) The serve receive accuracy was 79.9%.
2. Attack Pattern
U.S.A
1) The attack pattern is depicted in fig-3.
2) The attack pattern used individual skills effectively.
3) The quick spike frequency(54.1) was higher than that of the open spike.(45.9%).
4) The back-attack tactic was used frequently.
Bulgaria
1) The attack pattern was useful for the quick spike.
2) The left spike was used most frequently(36.9%) but the success rate was just 36.4%.
3) The back-attack was used only when the setter was a forward player.
Korea
1) The attack pattern was various. (fig-9).
2) The open spike frequency(55.7%) was higher then the quick spike but the success rate was low. (33.3%)
3) The pass and cross two-set spike and the back attack were seldom used.
Key Words
Biomechanical Analysis of the Effective Factors for the Performance in the Long Jump 자연과학편 : 멀리뛰기의 퍼포먼스에 영향을 미치는 요인(要因)에 대한 생체력학적(生體力學的) 분석(分析)
예종이JongE.Yhe
26(1) 61-70, 1987
Title
Biomechanical Analysis of the Effective Factors for the Performance in the Long Jump 자연과학편 : 멀리뛰기의 퍼포먼스에 영향을 미치는 요인(要因)에 대한 생체력학적(生體力學的) 분석(分析)
예종이JongE.Yhe
DOI:
Abstract
The purpose of this study was to identify the effects of the kinetic and kinematic variables on the performance in the Long Jump.
21 Long Jumpers were served as subjects. A single Force Platform was used to analyze kinetic variables and measured kinematic variables by using 16mm High-Speed Camera and Motion Analyzer.
The results and conclusion were as follow:
I. Kinetic Variables
1. The Force-Time curve of the Vertical Ground Reaction Force produced two peak points at the take-off.
2. The Maximum Vertical, Horizontal, and Sideward Ground Reaction Forces exerted 4.31 B.W., 1.25 B.W., and 0.25 B.W., at the Take-off, respectively.
3. The Maximum Vertical and Horizontal Ground Reaction Forces were significantly correlated with the Record, respectivly(r=0.40 ; P<0.05 for the former, r=0.67 ; P<0.05 for the latter).
4. The Vertical Impulse and Horizontal Impulse singificantly correlated with the Record, respectively(r=0.45 ; P<0.01 for the former, r=0.48;P<0.05 for the latter) and the Vertical Impulse was exerted 6 times larger than Horizontal Impulse and 12 times larger than sideward Impulse.
II. Kinematic Variables
1. The Approach Velocity of the last 1 stride before take-off was 8.4-9.4m/sec and the Resultant, Horizontal, and vertical velocities at the take-off were 7.3-7.8m/sec, and 2.0-2.6m/sec, respectively. Those 4 Velocity Variables significantly correlated with the Record (r=0.83 for the 1st, r=0.68 for the 2nd, r= 0.77 for the 3rd, and=0.77 for the 4th ; p<0.05)
2. The Approach Horizontal Velocity was decreased about 17-20% at the Take-off.
3. Nonsignificant correlations were found between the Height of C.G. at the Take-off or the Landing and the Record, respectively.
4. The Angle of C.G. at the Take-off was 18.4-21.0˚ and significantly correlated with the Record(r=0.48 ; P<0.05). But, Inclinations of Leg at the Contact, Take-off, and Landing were nonsignificantly correlated with the Record, respectively.
Key Words
A Study on the Motor Units Recruitment in the Biceps Brachii During Voluntary Contraction 자연과학편 : 상완이두근(上腕二頭筋)의 등척성(等尺性) 수축(收縮)시 운동단위(運動單位)의 동원체계(動員體系)에 관(關)한 연구(硏究)
주명덕MyungDuckJu
26(1) 71-77, 1987
Title
A Study on the Motor Units Recruitment in the Biceps Brachii During Voluntary Contraction 자연과학편 : 상완이두근(上腕二頭筋)의 등척성(等尺性) 수축(收縮)시 운동단위(運動單位)의 동원체계(動員體系)에 관(關)한 연구(硏究)
주명덕MyungDuckJu
DOI:
Abstract
The purpose of this study was to investigate the motor units recruitment and muscle fatigue of the Biceps Brachii during Voluntary Isometric Contractions by using Electromyogram.
Experiments have been performed for measuring and analyzing the changes of the Rectified EMG Amplitude and IEMG valuse during prolonged exertions at 75%, 50%, 25% MVC.
The results were as follows:
1 The Initial REMG Amplitude depended upon the leves of % MVC but the Final REMG Amplitude was not different among the 75%, 50%, 25% MVC.
2. The REMG Amplitude gradually increased with respect try muscle fatigue progression.
3. In case of 75% MVC, The IEMG values increased linerly through single section.
4. In case of 50% MVC, The IEMG values increased non-linearly at 63-72% of the Maximum Contraction Duration through two sections.
5. In case of 25% MVC, The IEMG value increased non-linearly at 41-54% and 78-87% of the Maximum Contraction Duration through three sections.
Key Words
Research on the Physique and Physical Strength of Infants 자연과학편 : 유아(幼兒)의 체격(體格)과 운동능력(運動能力)에 관(關)한 조사연구(調査硏究)
맹관호KwanHoMaeng
26(1) 79-98, 1987
Title
Research on the Physique and Physical Strength of Infants 자연과학편 : 유아(幼兒)의 체격(體格)과 운동능력(運動能力)에 관(關)한 조사연구(調査硏究)
맹관호KwanHoMaeng
DOI:
Abstract
The subject of 808members of infants(male and female) of Seoul and other districts was investigated to grasp the actual conditions of the physique and physical strength of Korean infants.
1. Period of Research: October, 1985.
2. Kind of Research: Height, Weight, 20M Run, Standing Jump, Tennis Ball Throw.
3. Measurement and Judgment : Based on the rule of measurement and judgment of Harada`s physique and physical strength.
As the result of the analysis of invetigation contents, the conclusion is as follows:
(1) Korean infants are remarkably taller than Japanese ones, Besides Seoul infants are taller than local ones.
(2) The weight of Korean infants is heavier than Japanese ones, and in physical pattern Korean infants are mostly balanced like Japanese ones. In addition, there are plenty of fatter infants and thin ones in both countries alike.
(3) Korean infants are inferior to Japanese ones in physical strength, but the former is superior to the latter in Standing Jump.
(4) When Seoul infants are compared with local ones in physical strength, Seoul infants are superior to local ones on Running and Throwing, but local infants are superior to Seoul ones in Jumping.
(5) Male infants are taller than female infants and also heavier than female infants. The former is excellent in physical strength. There is great difference between male and female particularly in Throwing.
(6) Great effort should be made to improve the following defects.
(a) Physical strength is inferior compared with the improvement of physique.
(b) The improving degree of physical strength shows a drop in increasing age.
(c) The phenomena of both extremities of physique are not desirable.
Key Words
Electromyographic Study for Analysis of Prime Mover in Tennis 자연과학편 : Tennis 동작시(動作時) 주동근(主動筋) 분석(分析)을 위한 근전도(筋電圖) 고찰(考察)
김찬회ChanHoeKim
26(1) 99-106, 1987
Title
Electromyographic Study for Analysis of Prime Mover in Tennis 자연과학편 : Tennis 동작시(動作時) 주동근(主動筋) 분석(分析)을 위한 근전도(筋電圖) 고찰(考察)
김찬회ChanHoeKim
DOI:
Abstract
Electromygraphic recording were made form the M. extensor pollicis longus, M. extensor carpi radialis longus, M. biceps brachii, M. triceps brachii, M. trapezius, M. levator scapulae, M. latissimus dorsi, trigonum Lumbale. M. rectus femoris using surface electrodes. The one subject is an expert who has been practising for almost 8 years, and he is regarded as one of the most excellent tennis player who can play all kinds of tennis technique completely.
The other subject is an unskilled tennis player who has 3 years experience. These two subjects are compared so as to investigate the action potential.
I made them perform the forehand ground stroke, backhand ground stroke and service relatively at the same rate of speed for the experiment
To integrate raw E.M.G recordings, the area enclosed by the zero line and the electromyogram trace was measured with graphical counting method.
The results and findings are obtained as follows form the anaotmical and biomechanical point of view.
1. Preminary posture for stroke
Action potentials could be seen mainly on M. extensor carpi radial is longus of nuskilled player.
2. Forehand stroke
It is considered that the prime mover is M. extensor carpi radialis lingus, assistant mover is M. biceps brachii, and synergist trignum lumbale, M. rectus femoris.
3. Backhand stroke
M. triceps brachii acted strongly in backhand stroke motion of two players in common, In this regard, the prime mover seems M. tricpes brachii, and synergist of lower limbs, M. rectus femoris.
4. Service
It take-back motion for flat and slice service, theprime mover is M. levator scapulae, adn in impact motion, M. trapezius, M. triceps brachii and M. extensor pollicis longus acted apparently in sequence of electrical intensity.
In slice service motion, slectrical activities of M. trapezius, and Mlevat or scapulae was shown not so obvious as in flat service motion. Besides potatial activities revealed M. trigonum lumbale kept on acting temporarily even after terminating the flat service motion.
This finding permits to concude de that the prime mover is M. trapezius, the assistant mover is M. levator scapulae, and the synergist is M. extensor carpi radialis longus.
Key Words
Comparative Analysis of Slide Kip Motion on Parallel Bars 자연과학편 : 평행봉(平行棒) Slide Kip동작(動作)의 비교분석(比較分析)
박광동KwangDongPark
26(1) 107-115, 1987
Title
Comparative Analysis of Slide Kip Motion on Parallel Bars 자연과학편 : 평행봉(平行棒) Slide Kip동작(動作)의 비교분석(比較分析)
박광동KwangDongPark
DOI:
Abstract
The Purpose of this study is to analyze the motion of Slide Kip, one of basic skill in parellel bars, with computer. Two university players, subject A can perfect motion but B con not, were rendomly sampled as subjects.
The writer Photoed their motion Several times with 16mm movie camera(64frame/sec). Films were projected with motion analyzer and misphotoed films were excluded. And among the rest, the film of the most correct motion was selected. 20 portions(Matsui’s drawing method) were Pointed with stylus pen and bata were output by computer. The motion of Slide Kip was divided into 5 phase and the moving Velosity of the gravitational center of the body and the changes of angle of joints were analyzed.
The conclusions were as follows:
1. In phase 1, subject A flexed more than B by 3.31˚ at neck joint, 4.09˚ at hip joint, and 5.81˚ at shoulder joint and moved faster than B by 1.33m/sec of HV, -0.40m/sec VV, and 1.09m/sec of RV.
2. In phase 2, subject A flexed more than B by 11.69˚ at hip joint and 7.26˚ at shouleder joint At neck joint, subject A extend 29.72˚, but B flexed 19.91˚.
3. In phase 3, subject A moved faster than B by 0.14m/sec of HV, 0.58m/sec of VV, and 0.34m/sec of RV and extend more than B by 36.53˚ at neck joint, 4.08˚ at hip joint, and 2.49˚ at shoulder joint.
4. In phase 4, subject A moved slower than B by 0.92m/sec of HV and 0.13m/sec of RV, and faster than B by 0.22m/sec of VV. subject A flexed more than B by 14.06˚ at hip joint and 25.24˚ at shoulder joint, and subject B flexed more than A by 3.00˚ at neck joint.
5. In phase 5 5, subject A extend more than B by 9.14˚ at neck joint and 5.93˚ at hip joint. At the end of phase 5, pushing up body by flexing neck joint and shoulder joint and straitening one by extending hip joint is thought to be desirable.
6. In sum, success of the slide kip motion is due to hip position when hang inversely and kicking direction when lift body.
Key Words
A Study on Sports Injury in Field Hocky Player(Ⅰ) - Focussed on Women- 자연과학편 : 하키선수의 상해 조사 연구(Ⅰ) -여자선수를 중심으로-
문병용ByoungYoungMoon
26(1) 117-124, 1987
Title
A Study on Sports Injury in Field Hocky Player(Ⅰ) - Focussed on Women- 자연과학편 : 하키선수의 상해 조사 연구(Ⅰ) -여자선수를 중심으로-
문병용ByoungYoungMoon
DOI:
Abstract
To Study on the injuries in women` Field Hockey Players, 6 girls High school team and 6 College-Adult players who are Notional Elite Field Hocky teams were requested by questionary asked on the position condition, symptom by injuries, and medical or other caring process.
The results from the survey are follows.
1. Clinical symptoms the most frequently presented were the bruise and Ankle injuries
2. Situation when the players were injured was under good weather in practice.
3. Injured period was at after-noon on early spring, and the injured place was play ground.
4. Medical care frequency showed acupunture in oriental Medical center(Han bang), and the periods for Medical care were required 10 days.
Key Words
A Inquiry and Analysis to Attack Skills in Tae Kwon Do game -Be centered with '86 national games- 자연과학편 : 태권도(跆拳道) 경기시(競技時) 공격기술(攻擊技術)에 대(對)한 조사분석(調査分析) -1986년(年) 국내(國內) 경기(競技)를 중심(中心)으로 -
김흥수HeungSooKim
26(1) 125-139, 1987
Title
A Inquiry and Analysis to Attack Skills in Tae Kwon Do game -Be centered with '86 national games- 자연과학편 : 태권도(跆拳道) 경기시(競技時) 공격기술(攻擊技術)에 대(對)한 조사분석(調査分析) -1986년(年) 국내(國內) 경기(競技)를 중심(中心)으로 -
김흥수HeungSooKim
DOI:
Abstract
The purpose of this study was extarct a standard attack skills in Tae Kwon Do games, by the paper which was author’s self-made game recorder sheet.
The 15’th National Youth’s Sports Festival and the 66’th national Sport Festival were that on degree (middle school, high school, collage, adults), weight (from FIN to HEAVY), based in this study
The results of this study was as follows ;
1. In case of winner and loser.
The winner used to more various skill than that of the losers’, and most of all the winner was ambivert player in skill.
It seemed to be that the training of various kind’s attack skill may be connect with victory in games.
2. In case of weight.
In the part of weight was not indifferent type in the opposition to the initial inference in time of this study’s outline drawing.
It seemed to underlying cause that the Tae Kwon Do player may be match the proper weight.
3. In case of degree (middle school, high school, collage, adults)
It coincided with inference of planning which was more various and complex skills than lower degree (from adults to middles school) and the results. But, it has no special attentive differences.
4. In case of fist attack.
The fist attack has not any attentive differences between winner and loser, among the weight and degrees.
It seemed to be that the fist attack used to more defensive skill method than offensive skill method.
Key Words
The Environmental Influences On the Physique, Somatotype, and Obesity of The Elementary School Boys in the Growth 자연과학편 : 성장기아동(成長期兒童)에서 체격(體格), 체형(體型), 비만(肥滿)에 미치는 환경적(環境的) 영향(影響)
공기화KiHwaKong , 최배근BaiGeinChoi
26(1) 141-153, 1987
Title
The Environmental Influences On the Physique, Somatotype, and Obesity of The Elementary School Boys in the Growth 자연과학편 : 성장기아동(成長期兒童)에서 체격(體格), 체형(體型), 비만(肥滿)에 미치는 환경적(環境的) 영향(影響)
공기화KiHwaKong , 최배근BaiGeinChoi
DOI:
Abstract
It is generally believed that the physical constitution and the somatotype are determined by genetic factors. However, many sholars have argued that they are under the complex influences of such environmental factors as the natural environment, socio-economic conditions, urbanization. Mechanization, nutrition, and psychological stress as well as the genetic factors.
The purpose of this, study is to investigate how some eveironmental factrol boys in their growth and to find out the casues for the obesity of the school boys in their growth and to find out the causes for the obesity of the school boys by comparing the difference of their somatotypes and besity under the influences of different environmental factors.
The sample groups of the school boys are classified into four categories with respective constrative pairs according to such environmental factors as the reginal difference, the supply of untrition, the standard of living, and the type elf residence. The four constrative pairs of the environmental factors are : the urban or the rural, the school lunched or the non-school lunched, the upper class or the middle-lower class, and the apartement resident or the ordinary house resident.
The results of this study are as follows:
1. The urban, the school lunched, the upper class, and the apartment resident groups showed a gresat significance in thir height and weight compared with their respective constrative groups.
2. The urban, the school unnched, the prdinary apartment resident groups showed a great significance in the skinfold thickness of triceps, subscapula, supraliac, and calf compared with their respective constrative groups.
3. The former groups showed greater humerus breadth, femur breadth, arm girth, and calf girth than the respective latter groups.
4. The men somatotype components of each groups are :
1) The Urban Group : 3.25∼4.41∼2.66
2) The Rural Group : 2.32∼4.66∼2.80
3) The School Lunched Group : 4.06∼5.03∼2.57
4) The Non-school Lunched Group : 2.75∼4.45∼2.73
5) The Upper Class Group : 4.24∼5.33∼2.46
6) The Middle-Lower Group : 2.78∼4.69∼2.76
7) The Apartment Group : 4.38∼5.38∼2.40
8) The Ordinary House Resident Group : 2.76∼5.00∼2.74
5. The former groups showed a general trend of high skinfold thickness. As a result, they showed more Entomorphic component, and lesser Ectomorphic components Their somatotypes were distributed more dinsely in Endomprphic area and more sparcely in Ectomorphic area.
6. The former groups showed higher rate of obesity respectively than latter group, and they also showed a great significance in the decision of obesity
7. It was concluded that the higher rate of Endomorphic components and obesity found in the former groups was coused by far more inactive extracrricular activities and less free physical activities.
Key Words
A Study on the Comparative Analysis between College Students and Athletic Students in the Balance 자연과학편 : 일반대학생(一般大學生)과 운동선수(運動選手)의 평형성(平衡性) 비교(比較) 분석연구(分析硏究)
박남미NamMiPark
26(1) 155-161, 1987
Title
A Study on the Comparative Analysis between College Students and Athletic Students in the Balance 자연과학편 : 일반대학생(一般大學生)과 운동선수(運動選手)의 평형성(平衡性) 비교(比較) 분석연구(分析硏究)
박남미NamMiPark
DOI:
Abstract
The purpose of this study is to analize the balance between college students (A-group) and athletic students (B-group).
The data measured by Kistler`s Balance Appraisal System are given as the vibation leagth and area each 3 seconds to 30 second.
The results obtained from statistical anaysis are as follows ;
1. Two feet balance : the vivaration length of A, B group are 49.08±3.66㎝ and 39.20±15.80㎝ respectively. B-group proved to be better than A-group ill the static balance. In the A-groups, correlation between length and height is-0.69, also significanee is P=0.021. The vibation length of broth group is almost linearly propertionated to time together.
2. One foot balance : ten length of A, B group are 228.51±109.86㎝ and 139.89±41.29㎝, respectively. The balance of B-group is superior to that of A-group.
3. Squat balance : Similar results are given as one foot balance.
4. In both Group, the better balance of one foot type proved to be better one of squat type (r=0.69, P=0.009).
Key Words
Biomechanical Analysis of the Standing Backward Somersault for Effective Teaching Methods at Floor Exercise 자연과학편 : 마루운동에서 서서 뒤공중돌기의 효과적(效果的)인 지도(指導)를 위한 동작분석(動作分析)
기한준HanJoonKi
26(1) 163-173, 1987
Title
Biomechanical Analysis of the Standing Backward Somersault for Effective Teaching Methods at Floor Exercise 자연과학편 : 마루운동에서 서서 뒤공중돌기의 효과적(效果的)인 지도(指導)를 위한 동작분석(動作分析)
기한준HanJoonKi
DOI:
Abstract
The standing tucked backward somersault is the most basic one of all performances. It is to be mastered before moving on the more difficult somersault for gymnasts and physical education students.
The purpose of this study is to analyze the standing backward somersault and to give support gymnast and student in terms of biomechanical principles.
The subjects were 4 male(skilled performer) gymnasts who were attending C highschool and 4 male(unskilled performer) students who were attending the department of physical education at C university in Kwangju city.
The pictures of the movements of subjects were take with 16mm movie camera(64 frame/sec). Their motions were traced of the film and were divided with four stages : tuck and spring, take-off aerialpahse and landing and the torque, velocity, angular velicity for biomechandical analysis were calculated.
The conclusions are as follow:
1. It is necessary to increase the vertical velocity and move the center of gravity of the body vertically at the tuck and spring movement.
2. It is necessary to increase the release velocity and gain as much angle as possible at the take-off movement.
3. It is necessary to increase the time of flight and increase the vertical distance of the center of gravity of the body at the aerial phase.
4. It is necessary to decrease the angular velocity and increase the angle of the kneejoint.
In conclusion, performer should train sargent jump and tuck jump and must land near 30㎝ form the take-of place.
