정구 선수의 소속별 스포츠상해 관련 요인에 대한 분석

정구열 한국스포츠학회 2019 한국스포츠학회지 Vol.17 No.1

본 연구는 정구선수의 소속별 스포츠 상해관련 요인 분석을 하여 최종적으로 정구 지도자와 선수들의 스포츠 상 해에 대한 재활과 향후 대처 방안에 대한 구체적인 정보를 제공하는데 연구의 목적을 두고 실시하였다. 이에 본 연구는 소속별 정구 선수 179명에게 스포츠 상해 특성을 분석하기 위한 설문을 실시하였으며, 설문조사 결론은 다음과 같다. 상해 유형에 관한 분석결과 근육통과 인대손상의 빈도가 높게 나타났으며, 소속별 상해원인 분석결과 환경적인 요소에 서는 소속별 모두 장소에서 상해유발 요인으로는 훈련강도와 훈련방법에서 통계적으로 유의한 빈도에 의한 차이를 보 였다. 재활치료에 관한 분석결과 중 재활치료 장소로 병원과 한의원에서 주 1-2회의 치료횟수에 대한 유의한 빈도 차이 를 보였으며, 상해 후 경기 복귀 기간에 대한 결과는 고등부와 대학부는 1주미만, 일반부는 2-3주에 통계적으로도 유의 한 빈도에 의한 차이를 보였다. 소속별 상해 인식대한 분석결과에서는 고등부는 ‘아니다’ 와 대학부와 일반부에서 ‘그렇 다’ 재 상해에 대한 분석결과에서는 고등부는 ‘없다’ 대학부와 일반부는 ‘있다’에 통계적으로 유의한 빈도에 의한 차이를 보이는 결과를 보였다. 결론적으로 정구 선수들의 스포츠 상해 방지를 위한 기술의 특성을 과학적으로 분석 및 체계적이 며 효과적인 운동 프로그램을 개발 하는데 노력을 하여야 하며, 지도자들 또한 선수들의 상해 예방을 위한 교육 및 훈련 지도가 필요함을 제시하고 있다. The purpose of this study is to analyze sports injury-related factors at each teams in soft tennis players and provide information on rehabilitation and further coping methods for sports injuries for soft tennis coaches and players. A questionnaire survey was conducted with 179 soft tennis players at each teams to analyze the characteristics of sports injuries. The following conclusions were drawn. The result of analyzing injury types showed high frequency in muscle pain and ligament injury. As a result of analyzing injury causes at each teams, first, environmental elements were statistically significantly different in all places at each teams and second, injury causing factors were statistically significantly different in training intensity and training methods. For the results of analyzing rehabilitation, there was a significant difference in frequency in hospital and Oriental medicine clinic for rehabilitation place and once or twice per week for rehabilitation frequency. For the periods for return to play after injury, a statistically significant difference in frequency was found in less than one week for high school and university teams and in 2-3 weeks for general teams. For injury perception at each teams, there was a statistically significant difference in frequency in 'No' for high school teams and 'Yes' in university and general teams. For re-injury at each teams, while there was a statistically significant difference in frequency in 'No' for high school teams and in 'Yes' for university and general teams. In conclusion, efforts should be made to scientifically analyze the characteristics of techniques to prevent sports injuries and develop systematic and effective sports programs for soft tennis players. Moreover, coaches should receive education and training coaching to prevent players’sports injuries.

피드백_이정구

이정구 책갈피 2011 마르크스21 Vol.- No.9

마르크스주의적 시각에서 본 국가 재정 논쟁

이정구 책갈피 2020 마르크스21 Vol.- No.36

현대화폐이론 비판: 정부는 정말 화수분인가?

이정구 책갈피 2019 마르크스21 Vol.- No.30

Decreased Serum Brain-Derived Neurotrophic Factor Levels in Elderly Korean with Dementia

이정구,Bae Sub Shin,Young Sun You,Ji Eun Kim,Sung Wook Yoon,전동욱,Jun Hyung Baek,박성우,김영훈 대한신경정신의학회 2009 PSYCHIATRY INVESTIGATION Vol.6 No.4

Objective: The primary purpose of this study was to investigate the differences in the serum brain-derived neurotrophic factor (BDNF) level between elderly Korean people over 65 years with and without dementia. Methodsaa171 individuals over 65 years were enrolled in this study. Screening for cognitive impairments was carried out using the Mini-Mental Status Examination-Korean version (MMSE-KC). One hundred thirty-two subjects scored below 1.5 standard deviations (SD) of the mean MMSE-KC score, and these were evaluated using the Consortium to Establish a Registry for Alzheimer’s Disease, Korean version (CERAD-K) and the Geriatric Depression Scale (GDS). The Clinical Dementia Rating Scale (CDRS) and the Diagnostic and Statistical Manual of Mental Disorders, fourth edition (DSM-IV) diagnostic criteria were used for further evaluation. Subjects with a CDRS score of 1 or higher were classified as having Alzheimer’s disease (AD), and subjects with a CDRS score of 0.5 were classified as having a mild cognitive impairment (MCI). Subjects with a CDRS score of 0 were classified as having aging-associated cognitive decline (AACD). Serum BDNF levels were analyzed using the enzyme-linked immunosorbent assay (ELISA) method. Results: The serum BDNF levels were significantly lower in the subjects with MCI and AD compared with the healthy controls (p<0.01). A significant correlation was found between the total MMSE-KC score and serum BDNF level (r=0.295; p<0.01). However, no significant correlation was observed between the severity of MMSE-KC and the total GDS score. A significant difference was found in the total score of GDS between the AACD group and subjects with AD (p<0.05). Conclusion: This study suggested that BDNF might be involved in the pathophysiology of cognitive decline in elderly people.

국내 홀스타인종 유우의 유량에 대한 연령보정계수 ( 年齡補正係數 ) 추정

이정구,오봉국 ( J . K . Lee,B . K . Ohh ) 한국축산학회 1985 한국축산학회지 Vol.27 No.2

Age-correction factors were developed on 4,538 complete lactation records from registered Holstein cows in the Animal Improvement Association of Korea from 1969 to 1983. These factors were computed by use of the gross comparision method for separate two seasons and overall season because yields of lactations initiated in season 1 (December through June) were about 6% larger than amounts produced by cows calving in season 2 (July through November). The new factors were smoothed across ages to eliminate minor fluctuation in yield that result from small number of records available in some age-month groups. It was concluded that the younger cows would lead to have 1 to 3 percentage of biased production records and that the older cows would have 5 to 7 percentage of biased production records if USDA age adjustment factors were used to the Korean field data.

한국 유우집단에 있어서 산유능력에 영향을 미치는 환경요인에 대한 분석

이정구,오봉국 ( J . K . Lee,B . K . Ohh ) 한국축산학회 1986 한국축산학회지 Vol.28 No.9

This study was carried out to investigate the importance and relative magnitude of environmental factors for 305-day mills yield by using seven different fixed models constructed with the combination of fixed sets of effects such as herd, year, month, parity, herd × month interaction, arid linear and quadratic regressions for age at calving. Data used for this study included a total of 4,485 sets of 305day lactation records of Holstein cows from six dairy farms participating in the registration project of the Korean Animal Improvement Association from 1969 through 1984. The results obtained from this study are summarized as follows: 1. Use of the fixed model 2 including herd, year, month, and linear and quadratic regressions for age at calving was more appropriate than use of any other model to analyze the importance of environmental factors for 305-day milk yield based on total records. 2. In the analyses of records for each lactation set, use of the fixed model 1 including herd, year, month, and linear regression for age at calving was appropriate for first or second lactation records, whereas use; of the fixed model 5 that quadratic regression for age at calving is added to the fixed model 4 was more appropriate for third and later lactation records. These results indicated that the relative importance of quadratic effects of age at calving was increased at third and later lactations. However, the herd × month interaction effects were not significant for any lactation records. 3. The variance component estimates expressed as percent of the total variance for actual milk yield based on total records under fixed models were: 14-16% for herd, 4-5% for year, 1-2% for month of calving, and less than 1% for herd × month interaction. And the relative sizes of each variance component estimates for each lactation records of milk were similar to those based on total lactation records.

白堊紀 公州 堆積盆地內 우라늄 鑛床에 對한 硏究

이정구,허영,김재봉 全北大學校 學徒護國團 1983 全國大學生學術硏究發表論文集 Vol.8 No.-

本 論文은 公州 白堊紀 堆積岩類에 胚胎된 우라늄鑛床에 對한 地質調査와 放射能 地表檢査 및 우라늄 鑛物에 對한 X-Ray 회절 검사를 通하여 層序 및 含우라늄層을 밝히고 堆積環境을 考察하여 우라늄 鑛化帶의 生成環境을 밝혔다. 本 域의 含우라늄層은 ?色 의 礫質砂岩層과 暗灰色의 석회질 셰일층이다. 礫質砂岩層에서의 우라늄鑛床 形成은 부근의 火山作用과 관련되어 安山岩, 화산재 Ash-flowtuff가 그 Source rock 이며 酸化環境에서 우라늄이 地下水에 이온 또는 분자狀態로 운반 되다가 환원環境의 경계부에서 침전이 일어난 것이다. 세일층에서는 地表 내지 地下水에 운반된 우라늄이 유기物質에 흡착되어 있다가 건조기후의 환원環境이나 기타의 환원조건에서 침전되어 우라늄 鑛化帶를 形成 한 것이다. 本 域의 검출된 우라늄鑛物은 Uraninte (UO_2)와 Uranophane [Ca (UO_2)_2SIO_3(OH)_2·5H_2O]등 이다.

Association of GSK-3β −50T/C Polymorphism with Depression and Cognitive Impairment in Patients with Schizophrenia

이정구,Sun Jung Lee,박성우,Min Chul Kim,Sung Soo Jung,김영훈 대한정신약물학회 2010 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.8 No.3

Objective: In this study, authors wanted to find out the association between the glycogen synthase kinase-3β (GSK-3β) −50T/C polymorphism and depression and cognitive impairment in patients with schizophrenia. 207 schizophrenia and 100 normal subjects were participated. We evaluated Brief Psychiatric Rating Scale (BPRS), the Hamilton Depression Rating Scale (HAM-D), and the Korean version of the Mini Mental Status Examination (K-MMSE) in schizophrenia. Methods: Polymerase chain reaction (PCR) analysis of genomic DNA was conducted to evaluate the genotype distribution and allele frequency of GSK-3β −50T/C in subjects. Results: We observed that genotype distribution and allele frequency were not significantly different between schizophrenia and normal subjects. Moreover, no significant difference was found in the promoter polymorphism of GSK-3β in compound genotype distributions and allele frequencies in schizophrenia according to HAM-D scores. However, there was a difference in genotype distribution and allele frequency in schizophrenia according to cognitive impairment. Conclusion: These results suggest that the GSK-3β −50T/C gene polymorphism may be associated with cognitive impairment in patients with schizophrenia.

후두미세수술에서 탄산가스 레이저를 이용한 레이저 수술의 안전성

이정구,정필상,정필섭 대한기관식도과학회 1998 大韓氣管食道科學會誌 Vol.4 No.2

The developmental and subsequent addition of laser technology to existing surgical techniques offered new and exciting Possibilities for improving traditional endoscopic operations and expanding the scope of the specialty of otolaryngology-head and neck surgery. Lasers were found to be Precise, but potentially dangerous, surgical instruments whose use was associated with certain distinct and unprecedented advantages, but also with many unique and potentially serious, and sometimes catastrophic complications. The Purpose of this study was to evaluate the of elation technique of $CO_2$laser, kinds of anesthesia, equipments of operating room, and education of medical staff. Four hundreds 4 cases of $CO_2$laser laryngeal microsurgery were reviewed for the safety of $CO_2$laser in laryngeal microsurgery. Vocal polyp (46,3%) was the most common pathology in our cases. The others were vocal nodule, Reinke`s edema, epiglottic cyst, laryngeal granuloma, laryngeal papilloma, intracordal cysts, laryngeal tuberculosis, laryngeal web, laryngotracheal stenosis, and laryngeal cancer. Following complete equipment controls, treatment area controls, maintenance, service and procedural controls, personel protective equipment, and warning signs, no complications were found in our cases. In conclusion, laryngeal microsurgery with $CO_2$laser could be done safely without complication if complete preoperative preparation and education of medical staff preceded.