• 한국방사선학회논문지
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• 제7권6호
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• pp.427-431
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• 2013

본 연구의 목적은 특발성 척추 측만증 환자를 대상으로 요가 운동 요법을 통하여 척추 측만각도 즉 요추 Cobb's angle의 정도를 분석하여 요가 운동 프로그램이 특발성 척추 측만연구에 어떠한 영향을 미치는지의 효과를 알아보는데 있다. 본 연구의 요가 운동 프로그램은 척추주변의 근육들의 지나친 긴장을 풀고 이완된 근육은 수축운동을 통하여 유연성과 탄력을 회복하여 운동 시 주동근과 길항근의 균형을 맞추고 협력근과의 조화로운 상태가 척추측만에 도움될 것으로 판단하여 골반운동과 척추 비틀기 운동을 중심으로 실시하였다. 실험대상은 광주광역시 소재 C병원에서 특발성 척추 측만증 진단을 받은 여자 중학생을 대상으로 하여, 요가 운동 프로그램으로 주5일, 1일 60분, 12주간 실시하여 요가 운동프로그램이 특발성 척추 측만증 변화에 미치는 영향을 알아보고자 실시하였다. 실험 전, 후 방사선을 통하여 요추의 Cobb's angle을 측정하여 효과를 검증하였다. 첫째, 요가 및 척추 전문가와 함께 연구하여 동작을 추축하였다. 둘째, 개발된 척추측만증에 대한 요가 운동 프로그램을 특발성 척추 측만증을 갖고 있는 여중생에게 12주간 실시하였다. 셋째, 특발성 척추 측만증에 대한 요가 운동 프로그램에 대한 타당성과 효과를 검증하였다. 그 결과 운동 전보다 5도가 통계적으로 유의하게 감소하여 (p=0.006)특발성 척추 측만증이 개선되었다.

• Journal of Korean Neurosurgical Society
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• 제60권5호
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• pp.577-583
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• 2017

Objective : Laminoplasty is an effective surgical method for treating cervical degenerative disease. However, postoperative complications such as kyphosis, restriction of neck motion, and instability are often reported. Despite sufficient preoperative lordosis, this procedure often aggravates the lordotic curve of the cervical spine and straightens cervical alignment. Hence, it is important to examine preoperative risk factors associated with postoperative kyphotic alignment changes. Our study aimed to investigate preoperative radiologic parameters associated with kyphotic deformity post laminoplasty. Methods : We retrospectively reviewed the medical records of 49 patients who underwent open door laminoplasty for cervical spondylotic myelopathy (CSM) or ossification of the posterior longitudinal ligament (OPLL) at Pusan National University Yangsan Hospital between January 2011 and December 2015. Inclusion criteria were as follows : 1) preoperative diagnosis of OPLL or CSM, 2) no previous history of cervical spinal surgery, cervical trauma, tumor, or infection, 3) minimum of one-year follow-up post laminoplasty with proper radiologic examinations performed in outpatient clinics, and 4) cases showing C7 and T1 vertebral body in the preoperative cervical sagittal plane. The radiologic parameters examined included C2-C7 Cobb angles, T1 slope, C2-C7 sagittal vertical axis (SVA), range of motion (ROM) from C2-C7, segmental instability, and T2 signal change observed on magnetic resonance imaging (MRI). Clinical factors examined included preoperative modified Japanese Orthopedic Association scores, disease classification, duration of symptoms, and the range of operation levels. Results : Mean preoperative sagittal alignment was $13.01^{\circ}$ lordotic; $6.94^{\circ}$ lordotic postoperatively. Percentage of postoperative kyphosis was 80%. Patients were subdivided into two groups according to postoperative Cobb angle change; a control group (n=22) and kyphotic group (n=27). The kyphotic group consisted of patients with more than $5^{\circ}$ kyphotic angle change postoperatively. There were no differences in age, sex, C2-C7 Cobb angle, T1 slope, C2-C7 SVA, ROM from C2-C7, segmental instability, or T2 signal change. Multiple regression analysis revealed T1 slope had a strong relationship with postoperative cervical kyphosis. Likewise, correlation analysis revealed there was a statistical significance between T1 slope and postoperative Cobb angle change (p=0.035), and that there was a statistically significant relationship between T1 slope and C2-C7 SVA (p=0.001). Patients with higher preoperative T1 slope demonstrated loss of lordotic curvature postoperatively. Conclusion : Laminoplasty has a high probability of aggravating sagittal balance of the cervical spine. T1 slope is a good predictor of postoperative kyphotic changes of the cervical spine. Similarly, T1 slope is strongly correlated with C2-C7 SVA.

• Journal of the Korean Statistical Society
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• 제2권1호
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• pp.3-7
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• 1973

Zellner, Kmenta, Dreze (1966) and later Hedges (1969) showed that consistent estimates of the parameters of Cobb-Douglas or CES production functions can be obtained by the single equation estimation methods if the models incorporate the assumption that firms maximize the mathematical expectation of profits. This note demonstrates that the results of the above-cited works can be extended to a class of VES production function models.

• 혜화의학회지
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• 제15권1호
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• pp.117-124
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• 2006

Objectives : This study was performed to evaluate the effect of oriental medical treatment on adolescent structural scoliosis. Methods : A patient who has scoliosis was treated with chuna and acupuncture treatment. After the treatment, we evaluated the effects of treatment with radiological measurement by calculating the scoliosis correction angle from the initial and follow-up spine AP view. Result : After the treatment, the cobb's angle of T-spine was changed $23^{\circ}$ to $15^{\circ}$, that of L-spine was changed $25^{\circ}$ to $10^{\circ}$. Conclusions : In this study, Chuna and acupuncture treatment was efficacious against scoliosis. And it is necessary for adolescent scoliosis patient to be more early detection, earily treated and continuous observed.

• 농업과학연구
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• 제24권1호
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• pp.63-74
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• 1997

This study is aimed at identifying the value of marginal products(VMP) of agricultural labor, capital and land. The resources are the major portion of input costs of agricultural projects. To appraise economic feasibility of agricultural projects, the real value of the resources would be estimated by VMP of the inputs rather than by distorted actual market prices such as rural wages, rent and interest. To convert the market wage rate into shadow wage rate, covertion factor of 0.90 would be appicable based on the study results. To evaluate the right of way and compensation, VMP of land is recommendable to apply in land pricing rather than actural land rent prevailing in rural area which has been underrated on account of labor shortage and difficulty of farming. Discount rate as a opportunity cost of capital should be applied 7-8% considering the VMP of capital and interest rate of foreign loan from IBRD and ADB. For the successful appraisal of the agricultural projects, the recommendation of this study would be applied in the future.

• 대한통합의학회지
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• 제6권1호
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• pp.63-74
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• 2018

Purpose: The purpose of this study was to evaluate the effect of a trunk stabilization exercise program on the participants' scoliosis angle, pulmonary function, and growth hormones. Method: In the study, 30 participants were divided into a normal scoliosis exercise group (n=15) and an obese scoliosis exercise group (n=15). The participants performed a trunk stabilization exercise program three times a week for 12 weeks, and the exercise sessions lasted 50 minutes. The participants' pulmonary function [FVC, FEV1, FEV1/FVC, and PEF] was measured using a CardioTouch 3000S, and their scoliosis angles were measured using the Cobb's angle. The levels of growth hormone (GH) and insulin-like growth factor-1 (IGF-1) were analyzed on an immunoradiometric assay (IRMA) and radioimmunoassay (RIA), respectively. Results: After the intervention, the scoliosis angle, hormone levels, and pulmonary function increased significantly in both groups (p<.05). The result of the intergroup difference test indicated statistically significant differences in the three items (scoliosis angle, hormone levels, and pulmonary function) between the two groups (p<.05). Conclusion: Therefore, this program may be recommended as a therapeutic intervention for patients with scoliosis.

• 수산경영론집
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• 제23권2호
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• pp.91-99
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• 1992

It has been one of the critical issues that the researchers properly evaluate the fishing rights foregone by the coastal development activities like wetland reclamation. Particularly, estimating the productivity of concerned fishing rights is known to play a significant role in their monetary compensation. As a result, this paper attempts to develop a statistical model characterized by Cobb-Douglas production function in conjunction with the fisheries' productivity estimation. The primary hypotheses involving their statistical production function are as below : 1. The quantity of fisheries production is hypothesized to be expressed as a function of capital (K) and labor(L) put into fishing activities. 2. The estimated parameters of K and L are hypothesized to satisfy the conventional condition of production function as a form of Cobb-Douglas. These statistical tests reveal that the shellfish farming productivity heavily depends on the acre of mariculture while the input of labor force also considerably affects its productivity. In case of the fixed net fishing productivity, both the factors of capital and labor similarly affect the marginal change in its productivity. En addition, the productivity of shellfish (arming turns out to follow the increasing returns to scale, whereas that of fixed net fishing comes up with the decreasing returns to scale.

• 대한추나의학회지
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• 제5권1호
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• pp.205-211
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• 2004

Objective : This study is designed to provide clinical data about patients of scoliosis for clinicians. Methods : We investigated 112 patients who have signs and symptoms of scoliosis. visited Vertebral -Joint Center of Conmaul Oriental Medical Hospital from January 2003 to July 2004. We measured Cobb's angle in the 112 patients' X-ray of full spine AP and lateral view and also analyzed age, sex, chief complaints. Results : 1. We investigated 72 female and 40 male patients. The most common distribution of age was 20's in both sex. 2. In the scoliosis angle : The average scoliosis angle was $9.27^{\circ}{\pm}6.06^{\circ}$ in 112 patients. The average scoliosis angle of 40 male patients was$8.9^{\circ}{\pm}6.77^{\circ}$. The average scoliosis angle of 72 female patients was $9.48^{\circ}{\pm}5.67^{\circ}$. 3. The most common region of scoliosis was thoracic spine with 37 patients. 4. The most common chief complaint was low back pain with 69 patients. In the 48 patients. self awareness of scoliosis was included in the chief complaint.

• 대한물리의학회지
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• 제14권4호
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• pp.183-193
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• 2019

PURPOSE: This study assessed the exercise programs for improving the spinal angle and trunk flexibility by applying the aquatic exercise and sling exercise to young adults with scoliosis. METHODS: The subjects were 14 participants diagnosed with scoliosis. They were assigned randomly either to an aquatic exercise group (n=7) that received the WATSU exercise program or to a sling exercise group (n=7) that received a sling exercise program. The exercise program was 50 minutes once, three times a week, 12 times for four weeks. The spinal angle and flexibility were measured using the Cobb's angle and modified sit and reach test, respectively. Two variables were analyzed before and after the intervention, and the aquatic exercise group and sling exercise group were compared. RESULTS: After the intervention, the Cobb's angle decreased significantly, and the flexibility increased significantly in both groups (p<.05). A larger increase in flexibility was observed in the aquatic exercise group than in the sling exercise group (p<.05). CONCLUSION: These results showed that the two exercise programs improved the spine angle and flexibility. The increased flexibility showed that aquatic exercise was more effective than the sling exercise. Therefore, aquatic exercise and sling exercise can be used in the treatment and prevention of scoliosis.

• 척추신경추나의학회지
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• 제1권2호
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• pp.93-100
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• 2006

Objectives: To invesgate correlation between the scoliotic curve and BMI, cervical lordosis, lumbar lordosis and Ferguson angle in spinal scoliotic patient. Methods: The study was composed of 14 scoliosis patients beyond cobb'a angle $10^{\circ}$ (sample I group) and 15 scoliosis patients over cobb'a angle $10^{\circ}$ (sample II group). The patients were evaluated with X-ray findings of full spine AP and lateral views and statistically analyzed. Results: 1. Sample II group showed a significant decrease in BMI as compared with Sample I group(P<0.05). 2. Scoliotic curve had s negative relationship with $BMI({\gamma}=0.406)$ 3. Scolotic patients had a lower cervical angle than normal man. Conclusion: 1. The larger the scoliotic angle, the lower BMI 2. There are no concemed scoliotic curve and cervical lordosis, lumbar lordosis and Ferguson angle.