• 한국전문물리치료학회지
• /
• 제2권1호
• /
• pp.44-50
• /
• 1995

The purpose of this study was to investigate which of 4 positions produced the highest action potential in the rectus femoris muscle of normal adult subjects. Testing was performed in supine with the right leg performing a simple straight leg raise with the knee fully extended. The left leg, however, was placed in 4 different positions: 1. Full support with $0^{\circ}$ flexion. 2. Flexed on the plinth with $60^{\circ}$ knee flexion and foot flat. 3. Same as N0.2 but with $90^{\circ}$ knee flexion. 4. Left leg hanging over the end of the plinth with $90^{\circ}$ knee flexion, $0^{\circ}$ hip flexion and no foot support. This study was designed to compare the level of electromyographic activity of the rectus femoris under 4 positions. Fourty-three healthy young adults performed three trials of each exercise condition in random order in the supine position. Electromyographic activity was recorded from surface electrodes. Rectus femoris action potentials in all 4 positions were significantly different. The highest action potential at the end of movement of the right leg occurred with the left leg hanging over the end of the plinth with $90^{\circ}$ knee flexion. It is therefore recommended the straight leg raising be performed with the contralateral leg flexed at $90^{\circ}$ over the end of the supporting surface to obtain a maximum rectus femoris isometric contraction.

• 한국융합학회논문지
• /
• 제6권6호
• /
• pp.195-200
• /
• 2015

본 연구는 2014년 경기 남부의 종합건강검진센터에서 30-55세의 건강한 성인 47명을 대상으로 경동맥 초음파검사와 혈액검사 그리고 체격측정을 실시하여 성별과 연령 간에 동일한 집단으로 분석되었고, 대상자의 엉덩이둘레는 연령에 따라 40대가 50대보다 높은 결과로 나타났다(p<0.05). 경동맥 초음파 검사결과에서는 30대와 50대에서 차이를 보였다(p<0.05). CIMT와 BMI, CIMT와 엉덩이둘레에서 양의 상관관계를 보였다(p<0.05). 또한 혈압에서 CIMT와 수축기혈압은 양의 상관관계를 보였다(p<0.05). 결론적으로 이번 연구에서는 경동맥 내중막 두께로 대사증후군 인자와의 상관성을 입증하였으며, 향후 질병의 진단을 위해서는 초음파를 활용한 대사증후군 인자들의 융합적 연구가 보다 질적인 질병진단을 위해서는 지속적으로 연구되어야 할 것으로 사료된다.

• 가족자원경영과 정책
• /
• 제14권4호
• /
• pp.193-212
• /
• 2010

The pre-elderly approaching old age in our society confront having a harsh economic status. The main purpose of this study was to explore the factors influencing the preparation of the pre-elderly for overcoming this status. In particular, it focused on financially stable pre-elderly persons. The data from the 2008 Chungcheongnam-do Welfare Plan for Five Years collected by the Chungnam Women's Policy Development Institute was used to analyze the research questions. The participants in this study included 735 persons (ages 55-64) living in Chungcheongnam-do. Five hundred and eighty-one self-reported questionnaires were used for the final analysis using SAS, version 9.1. This study attempted to identify the important variables needed to find the factors related to socio-demographic and economic characteristics, the adult-child relationship, the preparation plan for old age, etc. The results showed that job and health status were key to preparation for financial stability among the elderly. Another finding was the importance of concrete financial planning for the elderly; that is to say, the pre-elderly who made more concrete plans than indefinite ones were likely to belong to stable households. Another significant finding was that it is important to consider both objective and subjective factors for the financial preparation of the elderly. These results should serve as reference data for the future welfare policy for the elderly, because the financial independence of the elderly will be vital for a healthy relationship between new and old generations.

• Imaging Science in Dentistry
• /
• 제39권1호
• /
• pp.19-25
• /
• 2009

Purpose: To longitudinally observe the healing process of extracted socket and the alterations of the residual ridge in healthy adult dogs using cone beam CT (CBCT). Materials and Methods: The mandibular premolars of two beagle dogs were removed and the extraction sites were covered with the gingival tissue. CBCTs (3D X-ray CT scanner, Alphard vega, Asahi Co.) were taken at baseline and at 1 week interval for 12 weeks. Radiographic density of extracted wounds was measured on normalized images with a custom-made image analysis program. The amount of alveolar crestal resorption after the teeth extraction was measured with a reformatted three-dimensional image using CBCT. Bony healing pattern of extracted wound of each group was also longitudinally observed and analyzed. Results: Dimensional changes occurred during the first 6 weeks following the extraction of dogs' mandibular premolars. The reduction of the height of residual ridge was more pronounced at the buccal than at the lingual aspect of the extraction socket. Radiographic density of extracted wounds increased by week 4, but the change in density stabilized after week 6. New bone formation was observed at the floor and the peripheral side of extracted socket from week 1. The entrance of extracted socket was sealed by a hard-tissue bridge at week 5. Conclusion: The healing process of extracted wound involved a series of events including new bone formation and residual ridge resorption.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
• /
• 제36권4호
• /
• pp.243-249
• /
• 2010

Tissue engineered bone (TEB) can replace an autogenous bone graft requiring an secondary operation site as well as avoid complications like inflammation or infection from xenogenic or synthetic bone graft. Adult mesenchymal stem cells (MSC) for TEB are considered to have various ranges of differentiation capacity or multipotency by the donor site and age. This study examined the effect of age on proliferation capacity, differentiation capacity and bone morphogenetic protein-2 (BMP-2) responsiveness of human bone marrow stromal cells (hBMSC) according to the age. In addition, to evaluate the effect on enhancement for osteoblast differentiation, the hBMSC were treated with Trichostatin A (TSA) and 5-Azacitidine (5-AZC) which was HDAC inhibitors and methyltransferase inhibitors respectively affecting chromatin remodeling temporarily and reversibly. The young and old group of hBMSC obtained from the iliac crest from total 9 healthy patients, showed similar proliferation capacity. Cell surface markers such as CD34, CD45, CD90 and CD105 showed uniform expression regardless of age. However, the young group showed more prominent transdifferentiation capacity with adipogenic differentiation. The osteoblast differentiation capacity or BMP responsiveness was low and similar between young and old group. TSA and 5-AZC showed potential for enhancing the BMP effect on osteoblast differentiation by increasing the expression level of osteogenic master gene, such as DLX5, ALP. More study will be needed to determine the positive effect of the reversible function of HDAC inhibitors or methyltransferase inhibitors on enhancing the low osteoblast differentiation capacity of hBMSC.

• 대한치과보철학회지
• /
• 제46권6호
• /
• pp.553-560
• /
• 2008

STATEMENT OF PROBLEM: Proximal contact plays an important role in the stability and maintenance of the integrity of the dental arches. However, it is difficult to evaluate quantitatively the tightness of proximal tooth contact (TPTC). PURPOSE: The aim of this study was to measure the TPTC in permanent dentition. MATERIAL AND METHODS: Ten young adult volunteers with healthy dentition participated in this experiment. The TPTC between the teeth of both the maxilla and the mandible was measured at rest state by a novel device which records the TPTC by pulling of a stainless steel strip (0.03 mm thick) using the electric motor. One-way ANOVA test was used to compare the values in all measured area. When a statistically significant difference was calculated, Bonferroni correction was applied. Independent samples t-test was used to compare the values in male and female. RESULTS: The lowest TPTC and the highest TPTC was measured between the lower central incisors (0.87 ${\pm}$ 0.20 N), and between the lower left first molar and second molar (1.99 ${\pm}$ 0.68 N), respectively. All TPTC per quadrant demonstrated a similar pattern of a continuous increased gradient in an anterior-posterior direction. There are no significant difference between the maxilla and mandible. CONCLUSION: The TPTC was measured quantitatively by a novel device and decreased progressively in a posterior-anterior direction.

• Tuberculosis and Respiratory Diseases
• /
• 제74권4호
• /
• pp.187-190
• /
• 2013

We report a rare case of lung disease caused by Mycobacterium lentiflavum in a previously healthy woman. A 54-year-old woman was referred to our hospital due to chronic cough and sputum. A computed tomography scan of the chest revealed bilateral bronchiectasis with bronchiolitis in the right middle lobe and the lingular division of the left upper lobe. Nontuberculous mycobacteria were isolated twice from three expectorated sputum specimens. All isolates were identified as M. lentiflavum by multilocus sequence analysis based on rpoB, hsp65, and 16S rRNA fragments. To the best of our knowledge, this is the first documented case of M. lentiflavum lung disease in an immunocompetent adult in Korea.

• 생물정신의학
• /
• 제15권1호
• /
• pp.35-45
• /
• 2008

Objectives : There has been a continued debate regarding the role of eye movements in Eye Movement Desensitization and Reprocessing(EMDR). This study examined the possible autonomic effect of horizontal eye movements after being exposed to fearful stimuli. Methods : Fifty two healthy adult women were randomly allocated to eye movement or eye fixed groups after watching a five minute fear-inducing film clip. ECG was recorded during the resting state, after watching the clip, and the treatment. A spectral power analysis of the heart rate variability was performed. As the variables violated the rule of normal distribution and the number in each group is small the non-parametric test was used. Results : Overall, we did not find the differences between the groups in both time and frequency domains. Some minor differences found were not consistent with results from previous studies. Conclusions : Effect of eye movement on autonomic nervous system during fear desensitization was not supported in this experiment. Further study with other psychophysiological measures is needed to understand the role of eye movements in treatment of traumatic memory.

• Clinical and Experimental Pediatrics
• /
• 제53권10호
• /
• pp.892-897
• /
• 2010

Purpose: This study evaluated the prevalence of the metabolic syndrome (MetS) and risk factors for metabolic derangement in young adults with childhood-onset hypopituitary growth hormone deficiency (ACOHGHD). Methods: Thirty patients with ACOHGHD who were treated with hormone-replacement therapy, aged 18 to 29 years, who visited the Seoul National University Children's Hospital between September 2009 and February 2010 were enrolled. Height, weight, waist circumference, hip circumference, and blood pressure were measured, and the clinical and hormonal features were reviewed retrospectively. We evaluated measures of metabolic derangement in the enrolled patients and in the data of healthy adults aged 20 to 29 years taken from the 2005 Korean National Health and Nutrition Examination Survey (KNHANES) as part of the National Cholesterol Education Program-the Adult Treatment Panel III. Results: Compared with the KNHANES participants, patients with ACOHGHD had significantly large waist circumference (men and women), high systolic blood pressure (BP) (women) and diastolic BP (men), and high serum triglyceride levels (women). The duration of illness correlated significantly with central obesity ($r^2$=0.546, $P$=0.003). The prevalence of MetS was 10% in patients with ACOHGHD and 2.3% in KNHANES participants. The prevalence of central obesity and MetS was higher in patients with ACOHGHD than in KNHANES participants ($P$<0.001 and $P$=0.042, respectively). Conclusion: Abdominal obesity correlated with the duration of illness in patients with ACOHGHD. Waist circumference should be measured in the clinic to prevent MetS, particularly in patients with a long history of ACOHGHD, regardless of age or sex.

• 한국지역사회생활과학회지
• /
• 제19권4호
• /
• pp.481-495
• /
• 2008

The aim of this study was to investigate the effects of socio-demographic and health-related perceptions and twenty dietary behaviors on the superiority and preference, convenient use of and purchase motives of vegetables among 370 women(mean age 43.9) in Seoul and metropolitan and Gangwon area. Data was collected using a questionnaire developed in advanced studies. Almost all subjects rated vegetables more predominantly than grains or meats on the basis of health, diversity, and convenience to purchase. Recognition of healthly funcions of diet, purpose of diet and some dietary behaviors had influence on preference for vegetables. Those who recognized that diet had the function of disease control and prevention, knew the healthy options vegetables provide us, such as, preventing us from geriatric diseases, good sources of vitamins and minerals and considered other motives aside from health issues. From Pearsons's correlation analysis, it was revealed that sufficient time for meal preparation and pleasant eating and desirable life style and dietary attitudes, and a better understanding of nutrition were positively correlated with consumption of more vegetables and convenient use of vegetables. The subjects who recognized the ability of food to help prevent diseases, had a preference for vegetables and attitude to use nutritional knowledge and also considered the nutrition values of vegetables and environment friendliness. Everyday use of vegetables such as consuming a variety of different vegetables, a families favorite vegetables and variation of cooking methods had correlated positively with purchase motives. Therefore to encourage consumption of vegetables, it is important to notice three points continuously; first, practical information of nutritive values of vegetables, the contribution of vegetables in current animal protein foods centered diet and healthful functionalities. Second, the importance of regular diet and steadfast attitude and lifestyle. Finally, the quality of the market where the products are bought such as, quality control of freshness, sanitation, expression of producer and a pleasant environment to shop in.