The Effect of Comprehensive Hand Repetitive Intensive Strength Training (CHRIST) Using Motion Analysis in Children with Cerebral Palsy

김동아,Jeong-Joon Park,Jung-Ah Lee,Pil-Woo Hwang,Min-Jin Lee,Hyun-Kyung Kim,유승현,이동률,이남기 대한재활의학회 2012 Annals of Rehabilitation Medicine Vol.36 No.1

Objective To investigate the eff ect of Comprehensive Hand Repetitive Intensive Strength Training (CHRIST) on upper limb function in children with cerebral palsy using motion analysis. Method Th e subjects in this study included 19 children (10 males, 9 females, mean age=8.8 years) with cerebral palsy. Th e experimental group (n=10) received CHRIST and general rehabilitation therapy. Th e control group (n=9) received a home program as well as general rehabilitation therapy. Both groups received30 sessions of CHRIST or home program training for 60 minutes per session 3 times a week during the 10-week period. The reaching movements were captured by a motion analysis system. Kinematic variables including movement time (MT), mean velocity (MV),normalized jerk score (NJS), mean angular velocity (MAV) and normalized jerk score of the shoulder, elbow and wrist joint with comfortable and fast speed were analyzed between groups and the pre-post training group. Results After pre- and post-training experimental group, MT, MV, NJS, MAV of shoulder, elbow, wrist and NJS of elbow and wrist improved significantlyin reaching movement of both comfortable and fast speed (p<0.05). However, After pre- and post-training control group, MV improved significantlyin reaching movement of only comfortable speed (p<0.05). Between two groups, MT and MAV of the elbow at comfortable speed and NJS of the elbow at fast speed were statisticallysignifi cant (p<0.05). Conclusion CHRIST proved to be an effective intervention for improving upper limb extremity function of reaching movement in children with cerebral palsy.

불균형 자료에 대한 분류분석

김동아,강수연,송종우,Kim, Dongah,Kang, Suyeon,Song, Jongwoo 한국통계학회 2015 응용통계연구 Vol.28 No.3

일반적인 2집단 분류(2-class classification)의 경우, 두 집단의 비율이 크게 차이나지 않는 경우가 많다. 본 논문에서는 두 집단의 비율이 크게 차이나는 불균형 데이터(unbalanced data)의 분류 문제에 대해서 다루고자 한다. 불균형 데이터의 분류방법은 균형이 맞는 데이터(balanced data)의 경우보다 분류하기 어려운 경우가 많다. 이런 자료에서 보통의 분류모형을 적용하게 되면 많은 경우에 대부분의 관측치가 큰 집단으로 분류 되는 경우가 많은데 실질적인 어플리케이션에서는 이런 오분류가 손해가 더 큰 경우가 대부분이다. 우리는 sampling 기법을 이용하여 다양한 분류 방법론의 성능을 비교 분석 하였다. 또한 비대칭 손실(asymmetric loss)을 가정한 경우에 어떤 방법론이 가장 작은 loss를 생성하는 지를 비교하였다. 성능 비교를 위해서는 오분류율(misclassification rate), G-mean, ROC, 그리고 AUC(Area under the curve) 등을 이용하였다. We study a classification problem of significant differences in the proportion of two groups known as the unbalanced classification problem. It is usually more difficult to classify classes accurately in unbalanced data than balanced data. Most observations are likely to be classified to the bigger group if we apply classification methods to the unbalanced data because it can minimize the misclassification loss. However, this smaller group is misclassified as the larger group problem that can cause a bigger loss in most real applications. We compare several classification methods for the unbalanced data using sampling techniques (up and down sampling). We also check the total loss of different classification methods when the asymmetric loss is applied to simulated and real data. We use the misclassification rate, G-mean, ROC and AUC (area under the curve) for the performance comparison.

The Reliability and Validity of Revised Cognitive Perceptual Assessment for Driving(CPAD2)

J. J. Kim(김진주),H. Choi(최현),M. H. Lim(임문희),J. A. Lee(이정아),H. S. Han(한희선),J. H. Bae(배재혁),J. J. Lee(이재진),M. H. Kim(김미혜),H. L. Kim(김학률),D. A. Kim(김동아) 한국재활복지공학회 2018 재활복지공학회논문지 Vol.12 No.3

본 연구는 뇌졸중환자에게 있어 개정판 운전인지검사(revised Cognitive Perceptual Assessment for Driving : 이하 CPAD2)의 신뢰성과 타당성을 평가하기 위해 진행되었다. 발병 전에 실제 운전을 했던 뇌졸중환자 30명을 대상으로 하였고, 각 피험자는 CPAD2와 실제 도로주행평가를 받았다. CPAD2의 신뢰성을 평가하기 위한 내적 일치도를 보았고, 타당성을 평가하기 위해 CPAD2와 도로주행평가점수의 상관성을 분석하였다. CPAD2의 내적일치도를 보기위한 Cronbach"s α 값은 0.726(p<.05)으로 바람직하였다. CPAD2 점수는 도로주행평가점수와 유의한 상관성이 있었고(r=0.625, p<.001), 불합격군의 도로주행평가점수는 합격군의 도로주행평가점수보다 유의하게 낮았다(F=7.302, p<.05). 결론적으로, 본 연구를 통해 CPAD2가 도로주행평가점수와 상관성이 있고 타당성이 있음을 확인하였다. 그러므로 CPAD2는 뇌졸중환자의 실제 운전 능력을 평가하기 위한 도구로 유용할 것으로 사료된다. This study aimed to assess the reliability and validity of the revised Cognitive Perceptual Assessment for Driving (CPAD2) in stroke patients. Thirty patients with stroke who were actively driving prior to stroke incidence participated in the study. Each participant was evaluated using CPAD2 and a road driving test. To determine the reliability of the composition of the CPAD2 criteria, the internal consistency (Cronbach’s α) was measured and the validity was verified by analyzing the correlation between the road driving test and CPAD2 scores. The Cronbach’s α value was acceptable at 0.726 (p<.05) to verify the internal consistency of CPAD2. A significant correlation was observed between the scores of CPAD2 and the road driving test (r=0.625, p<.001). The score of the failed group was significantly lower than that of the passed group(F=7.302, p<.05). We concluded that CPAD2 was correlated with the road driving test scores and confirmed its validity. Therefore, CPAD2 is a useful tool for evaluating actual driving performance of stroke patients.

리듬운동참가자의 인지적 자유감과 참살이의 관계

김동아(Dong A Kim) 한국사회체육학회 2006 한국사회체육학회지 Vol.0 No.27

체육계열 대학생의 문화성향이 동조행동 및 공동체의식에 미치는 영향

김동아(Kim, Dong-A) 한국체육과학회 2015 한국체육과학회지 Vol.24 No.1

This study investigated conforming behavior and community consciousness of 482 sports education department college students. The findings were: First, the college students’ cultural orientation, in particular, vertical orientation had significant influence upon confirming behavior. Second, the college students’ cultural orientation, in particular, horizontal orientation had significant influence upon community consciousness. Third, the college students’ conforming behavior, in particular, neutral behavior had significant influence upon community consciousness. Therefore, the college students’ community consciousness on the group should create horizontal group culture subject to members’ equality, so that desirable group culture should be made by meeting of individuals having horizontal culture orientation.

대학생의 여가동기와 여가태도가 대학생활적응에 미치는 영향

김동아(Kim, Dong-A) 한국체육과학회 2015 한국체육과학회지 Vol.24 No.1

The study investigated effects of college students’ leisure motivation and attitudes upon adaptation to college life. The subject was 456 college students. Questionnaire survey was done. Correlation, one way analysis of variance and multiple regression were used. The findings were: First, adaptation to college life varied depending upon personal characteristics. Female college students had higher adaptation to college life than male college students had. Students in their high college year had higher adaptation to college life than the ones in low college year had. Second, leisure motivation had influence upon adaptation to college life, and external motivation had the greatest influence. Third, leisure attitude had influence upon adaptation to college life, and affective attitude had the greatest influence.

교양체육교수자의 지도행동 유형이 수업참가자의 내적동기와 지속적 참여의지에 미치는 영향

김동아(Kim, Dong-A) 한국체육과학회 2016 한국체육과학회지 Vol.25 No.6

This study investigated effects of cultural physical education instruction behavior upon cultural physical education students’ internal motives and continuous participating will. The subject was 300 college students in their fourth grade in Seoul, Gyeonggi and Chungcheongnam-do who joined in cultural physical education. The study collected materials by using questionnaire of personal characteristics, instruction behavioral types, internal motives and continuous participating will. 286 copies of the questionnaire were used after excluding questionnaire of no answer and unfaithful answer. Exploratory factor analysis and Cronbach’α test were done to verify validity and reliability, and multi-regression was done. The findings were: First, cultural physical education instructors’ affirmative behavior had influence upon internal motive’s interest and pleasure, and training and instruction had significant influence upon competence. Second, affirmative behavior had influence upon continuous participating will. Third, interest, pleasure and competence of internal motives had influence upon continuous participating will.

보디빌딩 선수 및 동호인의 운동가치인식, 운동열정, 자기관리에 관한 연구

김동아(Kim, Dong-A) 한국체육과학회 2018 한국체육과학회지 Vol.27 No.1

This study investigated effect of exercise value cognition of body building athletes upon exercise passion and self-management of body building athletes. The subject was athletes and/or lovers who completed athlete registration and/or registered athletes of exercise lover. The subject was 167 athletes. Multi-regression and path analysis were used. First, sports value cognition"s social, psychological and health promotion had influence upon harmonious passion, and health promotion and exercise technology had influence upon obsessive passion. Second, exercise value cognition"s social, psychological and health promotion had significant influence upon human relation, and exercise technology, social and psychological factors had influence upon training control, and exercise technology and social and psychological factor had influence upon mental control. Third, obsessive passion had significant influence upon body control, and obsessive passion and harmony passion had influence upon training control, and harmony passion had influence upon mental control. Fourth, exercise value cognition, exercise passion and self-control had causal relation.

생활체육 참가자의 심리적 안정감 및 부부애의 관계

김동아(Kim Dong-A) 한국체육과학회 2008 한국체육과학회지 Vol.17 No.3

This study examined the relationships between psychological stability and married love in life sports participants. The subjects were 512 persons who participated in life sports. Questionnaires were used to investigate. The findings were: Firstly, the participants had different psychological stability and married love depending upon their individual characteristics: Concentration of psychological stability varied depending upon gender. Psychological stability varied depending upon ages, and concentration had significant difference. And, responsibility of married love had significant difference. Psychological stability varied depending upon educational level to have significant difference at concentration and self-control, and married love had significant difference at responsibility and passion. Psychological stability varied depending upon occupation to have different concentration and self-control, and married love had significant difference at responsibility and passion. Psychological stability varied depending upon income to have significant difference at self-control and satisfactions. Secondly, psychological stability and married love varied depending upon life sports participation to have significant difference at rhythmical exercises: And, married love had significant difference at stress overcoming type of physical exercises. Thirdly, not only physical exercise time but also physical exercise times a week had significant influence upon relations between life sports participation and psychological stability: And, participating period and time had significant influence upon relations between life sports participation and married love. Fourthly, life sports participation, psychological stability and married love, etc had causal relations.

교양체육수업에 따른 로하스성향 및 건강증진생활양식에 관한 분석

김동아(Kim, Dong-A) 한국체육과학회 2019 한국체육과학회지 Vol.28 No.1

The study investigated LOHAS propensity and health promotion lifestyles of 469 college students who attended physical education class at college in Seoul and Chungcheong. The findings were: First, boy students thought much of health, sub factors of LOHAS propensity such as value of the health and health control than girl students did. The students at high year thought much of health and environment friendliness and value of physical exercise and health control differently. LOHAS propensity did not vary depending upon major, and health promotion lifestyle had significant difference depending upon physical exercise. Second, LOHAS and health promotion lifestyle of personal exercise varied depending upon class type, and health consciousness, value of physical exercise and health control. LOHAS propensity and health promotion lifestyle were high at more number of class to have significant difference at consciousness of health and exercise. High consciousness exercise had high LOHAS propensity and health promotion lifestyle to have significant difference at health consciousness, environment friendly life and physical exercise. Third, LOHAS propensity of physical exercise college students had significant influence upon health promotion lifestyle.