볼링선수의 체격·체조성·운동능력 및 경기기술이 경기기록에 미치는 영향

최민동,박세환 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.6

The purpose of this study was to analyze the effect of physique, body composition and motor ability on technique and performance in bowlers. The obtained results were as follows: 1. Characteristics of male and female bowlers of physique and body composition (1) In physique, it defines that the male group was higher than female group but in triceps skinfold thickness and subscapular skinfold thickness, the female group was thicker than male group. (2) Body fat and percent body fat rate in female group was higher than male group but total body water and lean body mass in male group was higher than female group. 2. Regression analysis of the male and female boelers, physique, body composition, motor ability, technique and performance (1) Figure 8 duck, back strength and swing course were effected to performance in male group. (2) Accuracy of approaching was effected to performance in female group.

靑年前期의 運動能力의 因子構造에 關한 硏究

崔敏東 慶星大學校 1994 論文集 Vol.15 No.4

The purpose of this study is to analyze the factor structure for motor ability in pre-adolescence, and to constitute the test battery and the evaluation scales of motor ability. 150 boys, aged 13, participated as subjects and were administrated 23 test items. The conclusions obtained from this study are as follows: 1. Motor ability in pre-adolescence is composed of 8 factors including muscular strength, coordination, static balance, speed of leg movement, dynamic balance, static flexibility, speed of arm movement, and muscular endurance. 2. Eight factors are corresponded with factor hypothesized, but speed of change of direction, speed, dynamic flexibility, and cardiorespiratory endurance factors were not extracted. 3. To measure the interpreted factors, and estimation equation of factors made of standard score was determined, and it was translated into an equation which calcuates factor score by using of raw score. 4. A test battery was developed in considering factor loading, reliability, validity, and practicability for each factor. Test items included in the test battery are grip strength, figure 8 duck, stork stand, on foot tapping, spot walking test, trunk extension, block transfer, and sit-ups. 5. To develope an estimation scale for ability, mean and standard deviation for each 8 item was divided into 11 grades(from 0 to 10) by C-scale. A perpect score for the test is 80 points

生體部位가 身體適性에 미치는 影響

崔敏東 慶星大學校 1989 論文集 Vol.10 No.2

The purpose of this study is to find an effect of physical section to physical fitness. For this study: 1. The subject was randomly selected out 100 students in "B" high school. 2. The test items were Fore Arm Girth & Length, Upper Arm Girth & Length, Lower Leg Grith & Length, Thigh Girth & Length, Upper & Lower Limb Length, 100m Dash, Standing broad jump, Soft ball throw, chinning bar and sit up. The following conclusion were obtained from the result of research. 1. Fore Arm (Girth & Length) has R1,23=0.3812 of multiple correlation with Speed, R1.23=0.3578 with Muscle Endurance, and R1.23=0.2929 with Upper Limb power. 2. Upper Arm (Girth & Length) has R1.23=0.3732 with Speed, R1.23=0.5293 with Power, R1.23=0.2877 with Muscle Endurance and R1.23=0.2874 with Upper Limb power. 3. Lower Leg(Girth & Length) has R1.23=0.3526 with Speed, R1.23=0.2566 with power, R1.23=0.3250 with M8uscle Endurance and R1.23=0.3672 with Upper Limb power. 4. Thigh (Girth & Length) has R1.23=0.3787 with Speed, R1.23=0.2440 with Muscle Endurance and R1.23=0.4204 with Upper Limb Power. 5. Upper & Lower Length has R1.23=0.8103 with Speed, R1.23=0.9356 with Power, R1.23=0.3805 with Muscle Endurance, R1.23=0.7421 with upper Limb Power and R1.23=0.5604 with Abdominal Muscle Endurance. The values of all items were statistically significant at 0.01 level.

Motor Quotient가 運動學習能에 미치는 影響

崔敏東 慶星大學校 1990 論文集 Vol.11 No.2

The aim of the study is to research into effect that motor quotient has influence on real Sports skill acquirement and it's improvement. 65 "B" middle school boys in TAE GU were used for Subjects of this study. The test items are Motor quotient, Running long jump, Mat-Work, soccer dribble, Basket ball dribble, Volley ball Volley. The Conclusions of the study are as follows; 1. The only excellent group is improved in Gymnastics skill after motor learning, and the progress of Gymnastics skill is on a higher position than the lower group. 2. In Track and Field skill, The excellent group is on a higher position than the middle group and the lower group after or before motor learning. 3. In soccer sports skill, each group is improved after motor learning, and the order of progress is done excellent, middle and lower group. 4. In Basket ball skill, all three group are improved after motor learning, and the degrees of their progress are all much the same. The sports skill score among three groups is differ after and before motor learning, and their order are excellent, middle and lower group. 5. In Volley ball Skill, all three Group after motor learning are improved more than before motor learning, the degree of it's progress is similar in excellent group and middle group, but half of it's progress in lower group. Volley ball score among each group is different after and before motor learning, and the first place is the excellent group, in second the middle group and in third place the lower group, in score of Volley ball skill.

스쿼시의 성공률과 득점수에 따른 경기내용분석

최민동,양진아 경성대학교 2000 論文集 Vol.21 No.2

The purpose of this study is to analyze 56 individual squash games played by 32 players and determine how players can improve their odds of winning. The subjects included college players, adult players (instructors) who have taught for more than one year, and various club members who are interested in the game of squash. The results were as follows: 1. Comparison of different skills in each group 1) Among adult male players, those with more forehand drives and backhand boasts won more games. Among female players, those with more points scored using a backhand drop won more games. 2) Among male players on the squash club teams, those teams which made use of the backhand volleys and backhand boasts won more games. Those who scored more points with the forehand drop and the forehand drive won more games, as well. Among the women, the most important squash skills were the backhand service return, the forehand drive, and the backhand drive. 2.Correlation analysis between the success of the skills and the scores in each group (1) Male players in other groups usually won the game when they were successful at drive service. Likewise, females in such groups usually won the game when they used the backhand drop. It showed a positive relationship between the use of the skill and success. (2) Among male players playing in squash clubs at sports centers, there was no relationship between the types of skills used and the number of wins in the game. However, women on these teams were found to be less successful if they used the forehand return of service and backhand return of service. Thus, there was a negative relationship between the use of the skill like that and the success of the game.

남자초등학생들의 체력이 신체적 특성에 미치는 영향

최민동,김만호 경성대학교 2000 論文集 Vol.21 No.2

The purposes of this study were to analyze the effects of physical characteristics on development of physical fitness and to extract the factor structure of physical fitness. The subjects selected for this study were 360 elementary school boys, aged 9 to 11 years old. The findings of this study were as follows; 1.Development of physical fitness In elementary school boys, physical fitness, strength, power, muscular endurance, flexibility and speed showed a tendency to increase continuously with age. 2.The factor structures of physical fitness The factor structures of physical fitness in elementary school boys were composed of strength, body coordination, agility, balance and speed. 3.The effect of physical characteristics on the factors of physical fitness Physique of elementary school boys was effected on the factor of strength and speed, and skinfold thickness was effected on body coordination and agility.

基礎體力測定의 妥當種目에 關한 硏究〔Ⅲ〕 : 持久力檢査의 妥當種目 The validity items for the measurement of endurance

崔敏東 慶北大學校 師範大學 1980 體育學會誌 Vol.6 No.-

The purpose of this study is to find the appropriate test items in measuring The Endurance of Fundamental Physical Strength. For this study: 1. The 65 students of boy's middle school were chosen and examined as the subjects of this report. 2. The test items are included as follows; Harvard step Test and Breath Holding Time Test for Respiratory-Cardiovascular Function Test, and Chinning, Floor push up, Sit up, Back lift, Squat Jump and Hanging for Muscular Endurance Test, and Endurance Run, Squat Thrust and Endurance Ratio for the whole Endurance. 3. The mean, Standard Deviation, Reliability and Objectivity of every measurement items were figured out, and the significance and correlations between each items were analyzed by product moment correlation coefficient. Conclusions: The conclusions obtained by the analysis and the obstruction of the collected data can be summarized as follows. 1. In the Muscular Endurance Test of the Endurance items, Floor push up test is more valid than any other test items. 2. In the Respiratory-Gardiovascular Function Test, Harvard Step Test is more valid than Breath Holding Time Test. 3. Floor push up and Harvard Step Test have a limited influence on the other whole Endurance Test items, and each of them has its own individuality As the former for the muscular Endurance Test and the latter for respiratory-cardiovascular Function Test. 4. The Endurance Ratio Test is a valid item only for measurement of Endurance Improvement, together with a shor distance and a long distance. 5. The Endurance Run have an influence on the other Endurance Test Items, especially on Height (H. r=0.427) and weight (w. r=0.299) which have little correlation with the other Endurance Test Items. But the Endurance run is not suitable for Test Item because of the improvement of the record by repeated practice. 6. The squat thrust influencess evenly the whole muscles Respiratory-Cardiovascular Function, and this Test Item has considerable reliability and objectivity, but this Test Item doesn't connote any potentiality at all, therefore I came to the conclusion that this item is the most valid of all the Endurance Test Items.

基礎體力 檢査의 妥當種目에 關한 硏究<Ⅴ> : Agility檢査의 妥當種目 The vaild items for the measurement of Agility

崔敏東 慶北大學校 師範大學 1982 體育學會誌 Vol.9 No.-

The purpose of this study is to find the appropriate test items for measuring the agility motor ability. For this study: 1. The subject was a random selection of 100 Students in B high School. 2. The correlation coefficients of agility test items and the reliability and objectivity of each measuring item were figured out. 3. The test items were Squat thrust, Side Step A, Side Step B, Agility Run, Criss Cross test, 10m shuttle Run, Zig Zag Run and Boomerang Run. The following conclusion has been derived from the foregoing results through analysis and observation. 1. Squat Thrust has a little influence on each measuring item but does not have reliability and objectivity, therefore it is not appropriate item for Agility Test. 2. Side step A and B have a little influence on various measuring items but it does not have reliabaility and objectivity. 3. Agility Run has an influence on various measuring items and high reliability and objectivity, therefore it is the most representative item for Agility Test. 4. Criss Cross Test is not an appropriate item for Agility Test because it includes other factors except Agility factor. 5. 10m Shuttle Run has an influence on the other measuring items but it has low objectivity and no reliability. 6. Zig Zag Run and Boomerang Run have an influence on each measuring item but do not have reliability and objectivity.

皮下脂肪厚 測定方法의 信賴度 客觀度와 妥當度의 檢定에 관한 硏究

최민동 慶星大學校 1997 論文集 Vol.18 No.2

There are many methods for body fat estimation. Especially the skinfolds thickness measurement was used as an important one of many methods, because of its convenient aspect. So it was considered to be tested its test conditions again for increasing of precision in body fat estimation. Therefore this study was designed to examine reliability, objectivity, and validity of skinfolds thickness method there were vertical, horizontal, and diagonal measurement method for body composition evaluation, for this study, the subjects were selected 53 male students in 3rd-4th grade in Kyung Sung university. The results were as follows : 1. Among values of all most parts by vertical, horizontal, and diagonal method, except suprailiac and calf parts, significant differences of about 0.27-0.73mm were found. 2. The reliabilities for each part of vertical, horizontal, and diagonal method were found highly as 0.9232-0.9981. 3. The objectivities of vertical, horizontal, and diagonal method for each part were found more than about 0.92. But in face part, vertical and horizontal method with 0.7689-0.9072 were a little lower than diagonal method with 0.9095. In calf part, vertical method with 0.7721-0.7989 was lower than horizontal and diagonal methods with 0.8089-0.8588. 4. In each validity to bioelectrical impedance(BI) method, diagonal method was found r=0.7529, horizontal r=0.7418, and vertical method r=0.7391. Abdominal part with r=0.6852-0.7201 was found the highest part of all parts in each method. But face part with r=0.4790-0.5305 was the lowest of all parts. And the other parts were found about r=0.6. 5. In constitution of estimation formula, the following formulas that had abdominal part as explainable variable for body fat estimation were found as valid things. 1) vertical method : %fat=0.347X +8.911 (R=0.6952. SEE=2.2169) 2) horizontal method : %fat=0.345X +7.782 (R=0.7079. SEE=2.1779) 3) diagonal method : %fat=0.352X +8.838 (R=0.7201. SEE=2.1092) X : abdominal skinfolds thickness

上下肢部位와 體格値와의 相關에 關한 硏究

崔敏東 慶北大學校 師範大學 體育學硏究會 1984 體育學會誌 Vol.11 No.-

To find out the relationship between the parts of lower and upper limbs and their numerical value of physique, 100 first year students of B High School were chosen at random as the object of the study. The length of their upper arm, fore arm, lower limb, upper limb, lower thigh, upper thigh, and the girth of their upper arm, fore arm, thigh, calf, and their standing height, girth of chest, sitting height, body weight, and their Rohrer's indexes were measure, compared, and examined, and the follwing was concluded. 1. The girth of upper arm has a great correlation with body weight and girth of chest, and has a definite correlation with Rohrer's index, and has a little correlation. 2. The girth of fore arm is greatly related with body weight, and is reliably related with girth of chest, Rohrer's index, and sitting height, and is slightly related with standing height. 3. Girth of thigh has a high interrelation with body weight, and has a definiti interrelation with girth of chest and Rohrer's index, and has a slight interrelation with sitting height. 4. Girth of calf has a high interrelation with body weight and Rohrers index, and has a definite interrelation with girth of chest, and has a law interrelation with standing height and sitting height. 5. Length of upper limb has a high correlation with standing height, and has a definite correlation with body weight and sitting height, and has a law correlation with girth of chest. 6. Length of upper arm has a definite interrelation with standing height, body weight, and sitting height, and has a low interrelation with girth of chest, and has little interrelation with Rohrer's index. 7. Length of fore arm has a high correlation with standing height, and has a definite correlation with body weight, and has a low correlation with girth of chest and sitting height, and has little correlation with Rohrer's index. 8. Length of lower limb has a definite correlation with sitting height, and has a law correlation with Rohrer's index. 9. Length of upper thigh has a definite correlation with standing height, and has a low correlation with Rohrer's index, but has little correlation with body weight, girth of chest, and sitting height. 10. Length of lower thigh has a high correlation with sitting height, and has a definite correlation with body weight, and has a low correlation with girth of chest and sitting height, and has no correlation with Rohrer's index.