가려움증의 기전에 대한 최신 논의 고찰 - 최근의 연구 동향과 위장관계와의 연관성

김준동,한창이,서광일,김규석,김윤범,Kim, Jundong,Han, Chang-Yi,Seo, Gwang-Yeel,Kim, Kyu-Seok,Kim, Yoon-Bum 대한한방안이비인후피부과학회 2021 한방안이비인후피부과학회지 Vol.34 No.3

Objectives : The purpose of this study is to review the latest discussions on the mechanism of Itching. Methods : Articles that reviewed the mechanism of itching were searched from Pubmed (January 2016 to June 2021). In addition, review articles discussing the gastrointestinal tract and the mechanisms of pruritus were searched seperately. Results : The articles are classified into three categories. These categories are the classification according to the passage of time (acute, chronic), the immune factors involved (inflammatory, non-inflammatory), and the neurophysiological mechanism (pruritoceptive itching, neuropathic itching, neurogenic itching, psychogenic itching). In each category, the articles over the past five years are summarized and reviewed. Also, how the status of the gastrointestinal tract is reflected in itching was discussed in terms of leaky gut syndrome, neuro/gastrointestinal peptides, and gut microbiota. Conclusions : This review introduces the recently discussed mechanism of itching, and in particular, examines how the gastrointestinal tract is related to skin itching. Based on these considerations, it is expected that more diverse therapeutic approaches can be explored in the future.

태양전지 기술 및 개발 현황

김준동,Kim, Jun-Dong 한국전기전자재료학회 2015 전기전자재료 Vol.28 No.3

투명전극을 이용한 광전소자

김준동,Kim, Jun-Dong 한국전기전자재료학회 2015 전기전자재료 Vol.28 No.9

일본유치원생을 대상으로 실시한 운동능력과 체격 및 신체조성의 관계에 대한 검토

김준동(Kim, Jun-Dong) 한국체육과학회 2013 한국체육과학회지 Vol.22 No.3

This study examined the relationship between body composition and physical strength/motor ability in children to obtain basic data on the imbalance between physique and physical development in children in recent years, as well as the relationship between obesity and physical strength. Especially, The subjects were 97 boys and 92 girls at a nursery school in Gifu Prefecture, Japan. The items measured for physique and body composition were height, weight, BMI, muscle mass, body fat percentage, and amount of body fat. Bone density was calculated from speed of sound (SOS) and soteo-sono assessment index (OSI) from ultrasound propagation velocity and transmission index. The items measured for motor performance were 20 m dash, standing long jump, tennis ball throw, repetitive sideways jump, one-legged jump, and chin-ups. A partial correlation analysis of physique/body composition and physical strength/motor ability was conducted, but no notable correlation was found between body composition and physical strength/motor ability. From this it is conjectured that physique and body co mposition have little effect on physical strength and motor ability in early childhood. Therefore, because congenitally determined factors are strong in the attainment of physical growth and development in early childhood, the inference of body composition for physical strength and motor ability is assumed to be small in early childhood.

훌라후프운동과 식이요법이 성인비만여성의 신체구성과 체력에 미치는 영향

김준동(Jun Dong Kim),예소란(So Ran Ye),김태규(Tae Kyu Kim),정기연(Ki Yuen Jung),선우섭(Sub Sunoo) 한국발육발달학회 2006 한국발육발달학회지 Vol.14 No.3

The purpose of this study was to compare of the energy expenditure of two different types of hula-hoop exercise and the effects of hula-hoop exercise and diet cure for 6 weeks on body composition and physical fitness of obese women. The subject were 21 obese women(Experimental group: 14 for hula-hoop exercise and diet cure/Control group: 7 for diet cure only) who aged 23-47yrs with 33% of body fat rate. Measured body composition variables included weight, %fat, lean body mass, skinfold-thickness, body circumference and related physical fitness variables included. The results showed that superior iliac spine subcutaneous fat bifold, abdominal subcutaneous fat bifold and waist line of experimental group decreased compare to the control group. And experimental group performed better in sit up repetition. More over comparing the energy expenditure between two exercise types. The energy expenditure of Type B(waist, lower limb movement and arm movement) is significantly higher than Type A(waist, lower limb movement). Exercising depends on the time and the effort that is put into the routines. The amount of energy needed to do hula-hoop is equivalent to the energy needed to jump rope based on the research, therefore it can be concluded that this type of exercise requires a lot of energy. Hence, these data indicate that affirmative effect to the obesity solution where the hula-hoop motion is caused with motion insufficiency or hypernutrition. Especially, hula-hoop exercise denotes that it is effective in decreasing the abdomen and the waist fat.

하지근과 등속성 근력 및 슬관절 파워의 연령차 비교분석

김준동(Kim, Jun-dong) 한국체육과학회 2012 한국체육과학회지 Vol.21 No.3

This study evaluated the muscle mass of legs and simultaneously measured the isokinetic muscular strength and knee extension power targeting 99 women from 50 to 80 in order to review the relevancy with the muscle mass and to provide the basic data about the importance of the muscle of legs and for writing a exercise program. For the measurement of muscle strength of hip joints, an isokinetic dynamometer was used, and dynamic extension (60, deg/s) and dynamic flexion were performed. For the measurement of knee extension power, leg extension power measuring device was used. There was a significant correlation between psoas major muscle, muscle cross-sectional area, and hip joint flexor in the age group of 55-59 (r=.649, p<.05). In addition, There was a significant correlation between the extensor group, and knee extension power in the age group of 60-64 (r=.688, p<.01), 65-69 (r=.629, p<.01), 70-74 (r=.609, p<.001), and 75-80 (r=.773, p<.01). Meanwhile, There was a significant correlation between extensor muscles and knee extension power in the age group of 55-59 (r=.608, p<.05), 60-64 (r=.585, p<.05), 65-69 (r=.597, p<.01). The findings as above imply the muscle of legs is likely to influence knee extension power, the flexion of hip joints, knee extension power, and knee flexion greatly for the middle aged and the aged. Thus, the studies on the exercise programs to increase the muscle of legs are required.

중ㆍ고령자를 대상으로 실시한 상ㆍ하지 피하지방층과 근육량의 비교검토

김준동(Kim, Jun-dong),권정현(Kwon, Jeong-Hyun) 한국체육과학회 2013 한국체육과학회지 Vol.22 No.6

The object of this study is to compare and review the upper and lower limbs subcutaneous fat layer and muscle quantity targeting the middle and old age people. The subjects are 138 women age from 50 to 83 and the subject groups were divided into 6 groups and the subcutaneous fat thickness and muscle quantity of the upper and lower limbs were measured using the B-mode ultrasound. As a result, the thickness of the subcutaneous fat of biceps brachii, thigh muscle, and leg muscle of the group age 55-59 all increased compared to the group age 50-54(p<.01). Meanwhile, in case of muscle thickness, the thickness of rectus femoris rather than biceps brachii significantly reduced in the group age 55-59(p<.05). This study showed the result that the subcutaneous fat layer increased and the muscle quantity decreased following the age increase, and especially the muscle quantity reduction of the lower limbs(the front thigh) was more remarkable than the upper limbs. The result of this study suggests that it is possible to measure the subcutaneous fat layer and muscle quantity by the simple supersonic method without using CT or MRI targeting the person and it is necessary to reinforce the lower limb-muscular strength training for the aged.

중 · 고령자의 신체구성 및 생활 체력의 변화

김준동(Kim, Jun-Dong) 한국체육과학회 2016 한국체육과학회지 Vol.25 No.1

In this study, the way to assess muscle more accurately, was considered among the measurement methods of body composition. The purpose of the study is to measure the thickness of rectus femoris and vastus lateralis by using ultrasound measurement, lower-limb muscular power according to the aging process, bone density and the changes of sit-to-stand(STS) performance of middle-aged and elderly subjects. Subjects were 187 males and females age of 50 to 86 years, for comparison subjects were divided into groups of 50-54 years, 55-59 years, 60-64 years, 65-69 years, 70-74 years, and 75 years or more. As a result, degradation of performance occurred in all measurement items according to aging process(p<.05-p<.001), however the degree of the degradation of women was higher than men. Men subjects did not show a significant reduction in the thickness of rectus femoris and the bone density. The reason is estimated that the level of daily physical activity(actions such as walk or climb stairs) was higher than women subjects, physiological changes due to a decrease in physical activity and female hormones are considered to be the main cause in older women. Therefore, it is considered to focus more on the development and dissemination of sports programs for women in the future.

계단 오르기와 내리기동작에 미치는 연령증가요인의 분석

김준동(Kim, Jun-Dong) 한국체육과학회 2017 한국체육과학회지 Vol.26 No.1

This study evaluated the lower limb muscles and examined the relevance with the speed during the motion of climbing and coming down the stairs targeting 169 men and women aged from 47 to 87 in order to investigate the effect of the lower limb muscle affecting the speed during the motion of climbing and descending the stairs. As a result, in case of the stair-descending motion, the relevance between the 10m obstacle walk and the speed was high in the men, and the relation between the 10m obstacle walk and the speed appeared in women during the motion of the stair climbing and descending. To examine the correlation between each measured item, during the stair-climbing motion, while the correlation appeared between the leg power(p<.05) and 10m obstacle walk(p<.01) and the rise speed appeared in men, the correlation with the rise speed appeared at all items except 70% flexor and muscletriceps surae in women regarding the motion of climbing and descending the stairs. In conclusion, the women are more influenced by the lower limb muscle quantity concerning the motion of climbing and descending stairs than men. There is a possibility of evaluating the senior’s ability to climb and descend the stairs simply only by the 10m obstacle walk.

지방감소인자의 전사물질 섭취와 유산소운동이 여자대학생의 체지방과 혈중지질 농도에 미치는 영향

김준동(Kim, Jun-Dong) 한국체육과학회 2017 한국체육과학회지 Vol.26 No.4

The purpose of this study is to determine the effect of the female college student’s body fat on the blood lipid concentration. This study targeted 27 students who submitted the consent form to this study among freshmen in D University in Seoul, and 13 ones conducted only exercise as a contrast group, 14 ones were the test group which took in water containing the information of the fat decrease factor and conducted exercise. The measured items were physical composition, blood lipid, and leptin. The exercise program of total 8 weeks was conducted(twice a week, 2 hours per time, gall game such as soccer, basketball, and soft ball, and aerobic exercise, swimming). While the contrast group did not represent the significant difference before and after the test in all measuring items consequently, the figure of the weight girth and hip girth decreased statistically significantly in the exercise group(p〈.001). On the other hand, the figure of the weight(p〈.05), fat mass(p〈.01), and BMI(p〈.001) increased significantly. When it came to the blood ingredient change, the Triglyceride figure increased from pre-exercise 58.6±13.10 to post-exercise 73.8±27.31 in the contrast group so the statistical significance difference appeared(p〈.05). The big change did not appear in other items. On the contrary, when it came to the exercise group, the figure of T. Chol(p〈.001), Triglyceride(p〈.001), and LDL Chol(p〈.001) increased statistically significantly. The satisfactory result was not obtained only by the indirect intake without taking in the substance of the real fat decomposition factors. Nevertheless, it is judged the result of this study is noticeable to understand energy medicine, and the detailed verification should be done on the basis of the future nutritional management.