초등학교 여학생의 초경 유무에 따른 체격과 체질량지수 및 골밀도 분석

백운효(Un Hyo Baek) 한국발육발달학회 2009 한국발육발달학회지 Vol.17 No.3

To analyze on physique and body mass index and bone mineral density depending on if whether elementary schoolgirls have menarche or not, we chose 339 schoolgirls as the object using cluster sampling according to probability sampling on 15 classes of elementary school seniors. Whether menarche or not was directly asked through man-to-man interview by female teachers. And the height and weight was directly measured, and we used Sahara Bone Sonomet, an measuring apparatus for cell phones to measure calcaneus to see bone mineral density and we got the results below. 1. the fifth grade schoolgirls were 8.8%, and the sixth grade schoolgirls were 19.5% having experienced menarche. The rage or the elementary schoolgirls who experienced menarche was 28.3%, so there are one third of girls have experienced menarche during elementary school. 2. The height, weight, and the bone mineral density of the girls who experienced the menarche was higher, there was no difference in body mass index. According to these results, the rate of girls who experienced menarche is increasing and the height and weight is thought to be closely related to the period of menarche. the younger the age of menarche was the higher bone density, and menarche was affected by physical activities and weight.

변량분석을 이용한 통계적 기법의 오류

백운효(Un Hyo Baek),구광수(Kwang Soo Koo) 한국발육발달학회 2006 한국발육발달학회지 Vol.14 No.3

This paper was to remind cases in which analysis of variance was misused in physical education and explained why misuses of ANOVA should be avoided. The most common misuse in that some authors perform statistical not definite cause raw data. The secondly common misuse of ANOVA was that authors report only F-values without any other results from the ANOVA. The thirdly common misuse was that some authors perform unplanned comparisons of cell means to interpret significant interaction effects. The fourthly common misuse was that some authors perform nonparametric tests instead of standard parametric ANOVA for the reason of small sample sizes.

초경시기별 청소년들의 월경장애 분석

백운효(Un Hyo Baek) 한국발육발달학회 2009 한국발육발달학회지 Vol.17 No.1

The present study was conducted for analyzing change in menstrual disorder according to the period of menarche during youth. The results of this study are as follows: First, the menstrual cycle was more irregular among the athletes than among the ordinary students, and for the athletes, it was more irregular among those who had started athletics before menarche than among those who had done after. Second, for the ordinary students, menstrual pain was more severe among those who had an early menarche than among those who had a late one, and for the athletes, it was more severe among those who had a late menarche. Among the ordinary students, menstrual pain was more severe among those who had an irregular menstrual cycle than among those who had a normal menstrual cycle or dysmenorrhea, but among the athletes, no difference was observed. According to sports event, menstrual pain was severe in athletes of track and field, table tennis and swimming than in those of shooting.

유산소운동과 복부마사지가 비만중년여성의 혈관염증지표에 미치는 영향

백운효(Un Hyo Baek) 한국발육발달학회 2015 한국발육발달학회지 Vol.23 No.2

This study was conducted for 8 weeks on women with body mass index of 25 kg/m or above and percent body fat of 30% or above in order to examine the effect of abdominal massages and aerobic exercises on blood vessel inflammation index. The abdominal massage group (n=9) received massage at pressure of about 3-8 kg based on petrissage method, friction method, and epidermis method, and the aerobic exercise group (n=10) performed walking and running on treadmill and riding stationary bicycles. The following conclusion was obtained as a result of analyzing the effect of aerobic exercises and abdominal massages on blood vessel inflammation of middle-aged obese women. Both aerobic exercises and abdominal massages were found to be effective for IL-6 and WBC, and they did not affect CRP. In addition, aerobic exercises and abdominal massages did not show a difference. Based on such results, aerobic exercises and abdominal massages are predicted to have the same effect on blood vessel inflammation factor. Accordingly, it is necessary to examine sports massages with different variables and emphasize the importance of sports massages for health management of seniors and people with physical disabilities.

지역별 청소년의 신체발육 상태 분석

백운효(Un Hyo Baek),구광수(Kwang Soo Koo) 한국발육발달학회 2000 한국발육발달학회지 Vol.8 No.2

본 연구는 지역별 청소년의 신체발육 상태를 분석하기 위해 1981년에 출생하여 2000년도에 고등학교를 졸업한 대도시, 중도시, 소도시, 남자 각각 300명, 총 900명을 대상으로 무선 표집에 의한 군집표집 방법으로 실시하였다. 신장, 체중, 흉위, 좌고는 개인 건강기록부를 통하여 7세부터 18세까지 조사하였다. 조사된 자료는 일원변량분석을 통하여 다음과 같은 결론을 얻었다. 1. 지역간 연령별 신잔 체중, 흉위, 좌고 차이가 있었다. 2. 지역간 신장의 최대발육연령은 차이가 있었으며, 대도시가 소도시 보다 빠르게 나타났다. 3. 지역간 체중의 최대발육연령은 차이가 있었으며, 대도시와 중도시가 소도시 보다 빠르게 나타났다. 4. 지역간 흉위의 최대발육연령은 차이가 있었으며, 중도시가 소도시 보다 빠르게 나타났다. 5. 지역간 좌고의 최대발육연령은 차이가 있었으며, 대도시와 중도시가 소도시 보다 빠르게 나타났다. 6. 지역간 하지장의 최대발육연령은 차이가 있었으며, 대도시가 중도시와 소도시 보다 빠르게 나타났다. 7. 신장 증가량에 대한 좌고와 하지장의 성장비율은 다른 것으로 나타났다. The purpose of this study was to investigate the status of body growth in regional youth who were born in metropolis, cities and small towns in 1981 and who graduated high schools in 2000. The subjects for study were males sampled by a cluster sampling method of random sampling yielding 300 people in three regions (N=900). Height, weight, girth of chest and sitting height of the subjects from 7 to 18 years old were investigated through individual health records. The results of a one-way ANOVA are as follows; 1. There were difference in height, weight, girth of chest, and sitting height according to region and age. 2. There were difference in the maximum growth age on height according to region. 3. There were difference in the maximum growth age on weight according to region. 4. There were difference in the maximum growth age on girth of chest according to region. 5. There were difference in the maximum growth age on sitting height according to region. 6. There were difference in the maximum growth age on leg length according to region. 7. The growth rate of leg length and sitting height according to height increment showed a difference.

카이로프락틱과 교정체조가 척주측만증 환자의 콥스각과 유연성 및 통증에 미치는 영향

백운효(Baek, Un-Hyo) 한국체육과학회 2012 한국체육과학회지 Vol.21 No.2

This study analyzed the effect of chiropractic and adjustment exercise on the Cobb"s method, flexibility, and pain of scoliosis patients. The following results were gained.1. Chiropractic & adjustment exercise and adjustment exercises were presented to reduce Cobb"s angle. 2. Chiropractic & adjustment exercise and adjustment exercises were presented to increase trunk flexion forward and trunk flexion backward. Furthermore, trunk flexion forward showed greater increase in the Chiropractic & adjustment exercise and adjustment exercise group than in the calibration gymnastics group. 3. Chiropractic & adjustment exercise and adjustment exercises were presented to decrease pain index. Based on comprehensive observation of the above results, it can be said that chiropractic and calibration gymnastics presented positive influence to scoliosis patients. Although exercise cure is also important, it is stipulated that combining chiropractic with calibration gymnastics will prove to be more effective in improving scoliosis.

택견경기시 휴식방법이 심박수와 혈중 젖산농도 및 운동자각도에 미치는 영향

백운효(Baek Un-Hyo) 한국체육과학회 2009 한국체육과학회지 Vol.18 No.1

The present study sampled 7 trainees who had had taekgyeon training for over 4 years, and had them play a match in which they played two rounds and 3 minutes per round and a minute’s recovery between the rounds, and analyzed changes in their heart rate, blood lactate, and rating of perceived exertion. From the results of this study were drawn conclusions as follows. First, the heart rate increased just after the match compared to that at rest in both static recovery and dynamic recovery, and it decreased after a minute’s recovery. There was no difference in the change of heart rate according to recovery method. Second, the blood lactate concentration increased over time while the match continued, and the blood lactate concentration increased less in the 2nd round after dynamic recovery than after static recovery. Third, the rating of perceived exertion increased during the match, and decreased during the recovery. Change in the rating of perceived exertion was not different according to recovery method. Summing up the results, there was no difference in heart rate, blood lactate, and rating of perceived exertion according to recovery method, but cumulative fatigue decreased with the increase of recovery time. Thus, further research is considered necessary on the allocation of recovery time.

일반 고등학생의 운동참여시간별 교우관계와 심리특성 관련성 연구

백운효(Un-Hyo BAEK),이유리(Yu-Ree YI),홍예주(Ye-ju HONG) 한국수산해양교육학회 2020 水産海洋敎育硏究 Vol.32 No.4

운동선수와 일반학생의 초경시 체격발육 분석

백운효,Baek, Un-Hyo 한국데이터정보과학회 2009 한국데이터정보과학회지 Vol.20 No.1

초경시 체격의 변화를 알아보기 위하여 이중 S자형의 함수인 식을 MATLAP으로 회귀식을 추정하여 비교하였다. 첫째, 초경연령은 일반학생 12.42세, 운동학생 13.05세로 운동선수가 늦은 것으로 나타났다. 초경시 일반학생과 운동선수의 신장과 체중에 대한 최대발육연령은 차이가 없는 것으로 나타났다. 둘째, 일반학생은 초경이 늦은 학생이 초경이 빠른 학생보다 신장과 체중이 더 양호한 것으로 나타났고, 운동선수는 신장은 양호하나 체중은 더 작은 것으로 나타났다. 신장의 발육속도가 일반학생보다 운동선수가 더 크고, 발육지속 기간이 더 오랫동안 유지되는 것으로 나타났다. 체중의 발육속도는 일반학생과 운동선수 모두 비슷한 것으로 나타났으나 최대속도는 운동선수가 더 빠르게 나타났다. The present study was conducted for analyzing changes in physique of at menarche of athletic and non-athletes. The maximum growth age of height and weight during menarche was not different between non-athletes and the athletes. Second, among non-athletes, those who had menarche late were taller and heavier than those who did early, and among the athletes, those who had menarche late were taller but lighter. The development rate of height was higher and the development duration was longer in the athletes than in the non-athletes. The development rate of weight was similar between the non-athletes and the athletes, but the maximum rate was higher in the athletes.

뇌졸중 환자의 보행속도와 균형능력 및 하지근육 활성도의 관계 분석

박성현(Sung Hyun Park),백운효(Un Hyo Baek) 한국발육발달학회 2012 한국발육발달학회지 Vol.20 No.4

This study examines the relationship of balance index and pelvic limb muscle activity with walking speed to suggest an effective approach method in therapeutic mediation for clinical improvement of walking function. For this, the measurement of each variable for 62 stroke patients involved GAITRite for walking speed, Timed Up & Go Test and Berg Balance Scale Test and Functional Reach Test for balance index, and WEMG-8 for pelvic limb muscle activity of four muscles. In order to find out the relationship between variables, the multiple regression analysis was executed to figure out the multiple correlation and the relationship between the causes and the results. First, in the correlation of walking variable, balance index, and pelvic limb muscle activity, walking speed was found to have a clear correlation with all sub-variables of balance index. Also, in pelvic limb muscle activity, biceps femoris of double-limb support was found to have a clear positive correlation with Berg Balance Scale Test. Second, all sub-variables of balance index is found to have a significant influence on walking speed, and in sub-variables of pelvic limb muscle activity, it was found to have a significant influence on rectus femoris and biceps femoris activity of double-limb support. In conclusion, in therapeutic approach for improvement of walking function in relation to the walking speed which is the basic index to understand prognosis function and everyday life of stroke patients, the major assignment is to first enhance the balance ability. Also, it can be seen that the walking-related balance ability of stroke patients is determined by the degree of the muscle activity of the femoral region.