테니스 동호인의 부상부위별 부상위험요인 분석

조원제(Cho, Won-Je) 한국체육과학회 2021 한국체육과학회지 Vol.30 No.2

This study was conducted using raw data from the 2019 Survey and Recognition of Life Sports Safety Accidents in Korea. The total number of respondents to the survey was 7,725, of whom 245 said they played tennis. Respondents under the age of 19 were excluded. 108 people said they had experience in injuries. Using this data, we analyzed the injured area of a tennis player. Logistic regression analysis was conducted to observe exercise habits and which factors affect injuries through analysis on the five most frequently injured areas. The analysis showed that the frequency of injuries of tennis players was high in the order of wrists, elbows, knees, ankles, and shoulders. Chronic injuries caused by excessive use mainly appeared in the upper body, and acute injuries caused by lack of warm-up exercise mainly occurred in the lower body. To prevent injuries in the top 5 parts, warm-up exercises and especially flexibility exercises are needed. On the other hand, the risk of occurrence differed depending on proficiency. The better the tennis skills, the lower the risk of injury to the wrist and knee. However, the risk of injury to the shoulder increased. In summarize, thorough warm-up and cool-down exercises, and reducing activity time to less than two hours will reduce injuries during tennis exercise.

슬링운동에 따른 중년여성 만성요통환자의 시상면상 척추정렬과 요추 추간판각의 변화

조원제(Cho, Won-Je),박승진(Park, Seung-Jin) 한국체육과학회 2016 한국체육과학회지 Vol.25 No.1

This study was preformed to identify of different general physical therapy and sling exercise on Visual analogue scale(VAS) and sagittal spinal alignment, each lumbosacral segment angle in 30-60 age patients with chronic low back pain(CLBP). There were divided into two groups; general physical therapy group(GPTG; n=13), sling exercise group(SEG; n=15) from 28 patients into raging them, which they treatments 3 times a week for 12 weeks. Observed, there was changes in measurements by the same method in pre and post test for sagittal spinal alignment, VAS, lumbosacral angle and each intervertebral disc angle. The compare of differences between groups was what repeated measure ANOVA in SPSS for Change pre-post of VAS and spinal alignment, each intervertebral disc angle. The result showed significantly decreased VAS in GPTG and SEG. Also showed decreased pelvic tilt, lumbar scoliosis angle in SEG. And the Showed increased lumbar lordosis(L1-S1 angle) angle and each intervertebral disc angle of L2-L3, L3-L4, L4-L5 to after exercise in SEG. Therefore, this study was find the positive effect on the sling exercise than general physical therapy from rehabilitation for middle-aged women with chronic low back pain.

한국형 전투체력 및 군체력검정과 GRIT의 관련성

조원제(Cho, Won-Je),최영환(Choi, Young-Hwan) 한국체육과학회 2020 한국체육과학회지 Vol.29 No.2

This study was conducted to analyze the relationship between the Combat Fitness Test of R.O.K army(CFT), Army Physical Fitness Test(APFT) and GRIT. The subjects were 44 male cadets from the Korea military academy. Subjects who had agreed to the purpose and contents of this study were tested for CFT, APFT and GRIT. All data were analyzed by descriptive statistics and person’s correlation coefficient using SPSS 22.0. As a result, the 240m shuttle run showed a negative correlation between body fat mass, % body fat and leg tucks, On the other hand, it had a positive correlation with the combat circuit training(CCT). Leg tucks showed negative correlation with body mass and % body fat. But it showed negative correlation with sit-up and push-up. Lastly, CCT showed negative correlation with height and body weight, basal metabolic rate, skeletal muscle mass, % body fat and 240m shuttle run. However, the perseverance of effort showed a positive correlation with the CFT. In addition, consistency of interest showed a positive correlation with sit-up, push-up and it had a negative correlation whit 3㎞ run. Also, GRIT showed a positive correlation with push-up and but showed a negative correlation with 3㎞ run. Therefore, it is expected the improvement of CCT and APFT can increase the GRIT.

트레드밀용 하네스 착용이 심폐기능과 혈중젖산농도에 미치는 영향

조원제(Cho, Won-Je),최치선(Choi, Chi-Sun) 한국웰니스학회 2021 한국웰니스학회지 Vol.16 No.4

이 연구는 트레드밀용 하네스 착용이 심폐기능과 혈중젖산농도에 어떠한 영향을 미치는지 관찰하여 효과적인 트레드밀 운동을 위한 보조장비로서 활용가치를 검증하기 위해 시도하였다. 연구대상은 서울소재 K사관학교에 재학중인 20대 남성으로 연구의 절차를 설명하고 동의를 얻은 자발적 참여자 12명으로 실시하였다. 연구절차는 교차연구설계로 하였으며 1차는 트레드밀에서 하네스를 착용하지 않고 실시하였고, 1주간 휴식 후 트레드밀용 하네스를 착용하여 동일한 방법으로 실시하였다. 트레드밀 운동은 Bruce 프로토콜으로 피험자가 완전히 지칠 때까지 실시하여 심폐기능과 혈중젖산농도를 측정하였다. 도출된 data는 SPSS Ver.22.0 통계프로그램을 사용하여 비모수 대응 t검증으로 비교분석하였다. 이때 통계적 유의수준은 .05이하로 설정하였다. 그 결과 최고심박수(peak Heart rate)와 총 운동시간(total exercise time)은 하네스 착용한 경우가 유의하게 낮게 나타났고(p<.05)(p<.01)총 운동시간동안 소모한 총 칼로리량(calories consumption during exercise) 은 하네스 착용한 경우가 유의하게 높게 나타났다(p<.05). 또한 무산소성 역치(anaerobic threshold)가 나타난 시점을 비교한 결과 하네스 착용한 경우가 산소섭취량이 높은 시점에서 무산소성 역치가 나타났고, 심박수는 운동시간이 더 짧았을 때 무산소성 역치가 나타났다. 마지막으로 호흡교환율(respiratory exchange ratio)은 하네스 착용한 경우에서 무산소성 역치가 나타난 시점이 더 높았다(p<.05)(p<.05). 나타난 결과를 종합해 보면 트레드밀용 하네스 착용은 짧은 시간에 더 많은 산소를 요구하고, 무산소성 역치를 더 앞당겨 나타나게 함으로써 심폐기능을 향상시키는데 도움이 되는 보조장비로 활용이 가능할 것으로 판단된다. This study was conducted to observe the effect of wearing a treadmill harness on cardiopulmonary function and blood lactate. It was verified that the harness for treadmill can be used as an effective treadmill auxiliary equipment. The subjects of this study were men in their 20s attending the K Military Academy in Seoul, and 12 voluntary participants who explained the procedure of the study and obtained consent were conducted. The first experiment was conducted without wearing a treadmill harness on the treadmill, and after a break of 1 week, the harness was worn and the same experiment was conducted. Treadmill exercise was performed until the subject was completely exhausted using the Bruce protocol, and cardiopulmonary function and blood lactate concentration were measured. Using SPSS Ver.22.0 statistical program, comparative analysis was performed by non-parametric correspondence t-test. The statistical significance level was set to .05 or less. As a result, peak heart rate and total exercise time were significantly lower when wearing a harness(p<.05)(p<.01), and total consumed calories during exercise were significantly higher when wearing a harness(p<.05). In addition, the results of comparing the time points at which the anaerobic threshold appeared were as follows. In the case of wearing a harness, the anaerobic threshold was shown at the time of high oxygen intake, and the anaerobic threshold was shown in the heart rate when the exercise time was shorter. Also, the respiratory exchange ratio was higher when the anaerobic threshold appeared when wearing a harness(p<.05) (p<.05). In conclusion, since wearing a treadmill harness requires more oxygen in a short time, it is expected to be used as an auxiliary device for treadmill to help improve cardiorespiratory function by making the anaerobic threshold appear earlier.

저항운동과 단백질 보충제 섭취의 병행이 무산소성 능력과 혈중 에너지대사 물질에 미치는 영향

조원제(Cho, Won-Je),이동복(Lee, Dong-Bok),윤성준(Yun, Sung-Jun) 한국체육과학회 2015 한국체육과학회지 Vol.24 No.5

The purpose of this study was observed to effect of anaerobic capacity and energy metabolic factors by during resistance exercise with protein supplement intake. The male students in their 20s who are currently attending the D university located in Y-si, Gyeonggi-do were participated in this study. The 9 participants were assigned into a control group(CON), 9 participants were assigned into only resistance exercise group(RTG) and 9 participants were resistance exercise with protein supplement intake group(RTPSG). The participants were asked to perform the exercise for during 12-week, 3 times a week. Not exercise of treatment was control group, and RTG and RTPSG was asked to perform 3 sets 70-80%RM, 10 to 15 repetitions per a set in 12 weeks, And protein supplement intake treatment was only to RTPSG. SPSS Ver.15.0 statistics program on repeated measure ANOVA and one-way ANOVA was used to describe all data statistically. Results was showed significant difference in anaerobic ability and blood energy metabolic factors in the period by RTG and RTPSG. Also the showed to significantly increased body mass in peak power, glucose and LDH by RTG and RTPSG within group period into through one-way ANOVA in post hoc(p<.05), (p<.01), (p<.05). And Comparison between with groups was LDH in significantly lower RTG and RTPSG compared to CON(p<.05), (p<.05). Therefore this result showed positive effect of anaerobic ability and energy metabolic factors by during resistance exercise with protein supplement intake. however anaerobic ability and energy metabolic factors could not find difference between resistance training with protein supplement intake and only resistance training.

단백질 보충제 섭취 시기와 저항성 운동의 복합처치가 신체구성과 간기능에 미치는 효과

조원제(Cho, Won-Je),전용균(Jeon, Yong-Kyun) 한국체육과학회 2017 한국체육과학회지 Vol.26 No.2

The purpose of this study was to investigate the effects of dietary supplementation of protein supplements and resistance exercise on body composition and liver function and to prove effective intake of protein supplements during resistance exercise. The participants of this study was 26 adult male who are in 20s and have a BMI(body mass index) ≥30kg/m2and%fat≥30%.They were divided into three groups which are 9 of resistance exercise group(RG), 8 of discontinued intake group during resistance exercise group(DIG) and 8 of regular intake group during resistance exercise group(RIG). The change of body composition and liver function was observed after 6 and 12 weeks. The repeated measure ANOVA was conducted to check the interaction between groups and period by using SPSS Ver. 22.0. The default significance level was a=0.05. As a result, the % fat decreased more after 12 weeks than 6 weeks(p<.05) and also the interaction was observed in all groups(p<.05). Interaction was also observed in body fat percentage (p<.05). The skeletal muscle masses were increased after 6 weeks of RG, DIG, and RIG(p<.001), and no difference was observed after 6 and 12 weeks. The aspartate aminotransferase(AST) in liver function decreased after 12 weeks in RG and DIG(p<.05), but there was no statistically significant difference in RIG. The alanine aminotransferase(ALT) decreased after 12 weeks in RG(p<.05). ALT showed higher DIG and RIG than RG(p<.05). Therefore, although resistance exercise has a positive effect on the body composition and liver function of healthy adult males, it is found that the combined treatment of protein supplements and resistance exercise does not have much effect compared to the single treatment of resistance exercise.

청소년 전기 체격변화에 따른 체력변화 특성

조원제(Cho, Won-Je),이동주(Lee, Dong-Joo) 한국웰니스학회 2021 한국웰니스학회지 Vol.16 No.1

이 연구는 14-16세 청소년 전기 남녀학생을 대상으로 연 2회 학생건강체력검사(Physical Activity Promotion System: PAPS)를 실시하여 체격변화와 체력변화를 관찰하여 성별, 연령별 발달 특성을 관찰하고자 시도하였다. 연구의 목적을 달성하기 위해 1학기와 2학기에 걸쳐 PAPS를 실시하였으며 신체조성, 근력(상대악력), 근지구력(반복점프), 유연성(앉아윗몸앞으로굽히기)를 측정하였다. 모든 자료는 SPSS Ver. 22.0을 사용하여 반복측정분산분석을 실시하여 집단과 시기별 차이를 검증하였다. 그 결과 남녀학생 모두 신장, 체중에서 연령과 시기에 따른 차이가 있었고, 체지방률은 시기에서 차이가 있었다. 한편 남학생의 체지방률은 14, 15세에서 시기간 차이가 있었고, 여학생은 14세에서 시기 간 차이가 있었다. 체력의 변화를 검증한 결과 14세 남학생은 근지구력이 감소하였고 여학생은 근력, 근지구력이 증가하였으나 유연성은 감소하였다. 또한 15세 남학생과 여학생은 근력과 유연성에 변화가 없었으나 여학생의 경우 근지구력이 증가하였다. 16세 남학생은 근지구력은 증가하였으나 유연성은 감소하였고 여학생은 근력과 근지구력이 증가하였다. 따라서 성장기 청소년 전기 중학생은 급격한 신체발육이 나타나는 시기임을 확인하였고 연령에 따라 체력의 발달 특성은 차이가 있는 것으로 나타나 학년별 체육교육 프로그램 계획 시 이 결과를 고려한다면 체력향상에 도움이 될 것으로 기대한다. In this study, physical activity promotion system(PAPS) was conducted twice a year in early adolescent male and female students aged 14-16 years, attempted to observe developmental characteristics by gender and age by observing changes in physique and physical strength. To achieve the purpose of the study, body composition, muscular strength (relative grip strength), muscular endurance (repeat jump), and flexibility (sit and reach) were measured through PAPS twice a year. All data was SPSS statistics program repeated measure analysis was performed using to verify the difference between groups and periods. As a result, there were differences in height and weight according to age and periods in both male and female students, and body fat percentage was different in periods. Also, the body fat percentage of male students was different between the ages of 14 and 15 years. however there was a difference between the periods of female students at the age of 14 year. As a result of analyzing changes in physical fitness, the age of 14 years male students decreased their muscular endurance, while the female students increased their muscular strength and muscular endurance, but their flexibility decreased. In addition, there was no change in muscle strength and flexibility in age og 15 years boys and girls, but female students showed increased muscle endurance. The male age of 16 years increased muscular endurance but decreased flexibility, and female students increased muscular strength and endurance. Therefore, it was confirmed that middle school students in the early adolescents in the growth period showed experienced rapid physical development. there was a difference in physical fitness development characteristics according to age. So, if this result was considered when planning a physical education program for each grade, it is expected that it will aid improve physical fitness.

日本における農地の保全と傳

조원제 ( Won Je Cho ) 영남대학교 법학연구소 2013 영남법학 Vol.0 No.37

바이러스성 크루프로 입원하는 소아 환자의 역학적 특성과 임상적 중증도 평가

전인수,조원제,이정민,김황민,Jeon, In Soo,Cho, Won Je,Lee, Jeongmin,Kim, Hwang Min 대한소아감염학회 2018 Pediatric Infection and Vaccine Vol.25 No.1

Purpose: In this study, the clinical and epidemiological characteristics of patients admitted for viral croup were analyzed to evaluate disease severity based on the organism that caused the infection. Methods: We retrospectively reviewed the medical records of 302 patients who were admitted to the Department of Pediatrics at the Wonju Severance Hospital between May 2013 and December 2016 for viral croup. Patients who showed positive results on multiplex polymerase chain reaction were subsequently diagnosed with respiratory virus infection. The Westley scoring system was used to evaluate the severity of viral croup. Results: Of the 302 patients, 149 were admitted due to severe viral croup, including 88 boys and 61 girls, with a boy-to-girl ratio of 1.44:1. About 110 cases of parainfluenza virus infection have been reported, which accounted for almost half of the total cases. The other identified viruses included influenza virus, human rhinovirus, and respiratory syncytial virus. Analysis of the association between severe viral croup and causative pathogen revealed that only parainfluenza type 2 virus showed a significantly high risk. Parainfluenza type 2 virus did not show an age-based difference in frequency but showed relatively a higher frequency of infections during the summer and fall. Conclusions: In this study, parainfluenza virus type 2 was the only virus associated with severe viral croup. To facilitate proper preventive management, treatment, and prognosis evaluation of viral croup, prospective and multicenter studies should assess the additional variables and the severity of the virus. Additionally, further studies should be conducted to assess age-dependent influences, as well as the regional and seasonal incidence of viral infection.

혈액학적 인자분석을 통한 중강도 운동형태가 작업기억에 미치는 영향 규명

김원식(Kim, Won-Sik),조원제(Cho, Won-Je) 한국웰니스학회 2016 한국웰니스학회지 Vol.11 No.1

본 연구는 건강한 성인남성을 대상으로 12주간 중강도의 유산소 운동과 저항성 운동을 실시하여 작업기억의 변화를 관찰하고 작업 기억 변화에 영향을 주는 혈액학적 인자를 분석하는데 그 목적이 있었다. 성인 남성 29명을 대상으로 중강도 유산소운동(9명; 50%최대 산소섭취량, 200킬로 칼로리)과 중강도 저항성운동(10명; 50-55% 최대반복횟수, 728킬로 줄), 통제집단(10명, 비운동)로 구성하여 12주간 주 3회로 운동처치를 실시하였다. 측정은 운동처치 전(d-7)과 운동처치 후(d+2)에 동일한 방법으로 신체구성, 운동부하검사, 채혈 및 작업기억검사를 실사하여 변화와 운동 후 변인의 관련성 관찰하였다. 그 결과 유산소 운동은 체지방률 감소와 적혈구 수, 헤모글로빈 및 작업기억의 증가를 나타냈고, 저항성 운동은 근육량, 성장호르몬, 인슐린유사성장인자-1, 테스토스테론 헤모글로빈 및 작업기억의 증가를 나타냈다. 한편 중강도의 운동형태에 따른 작업기억 변화에 영향을 미치는 혈액학적 인자의 상관성을 관찰한 결과 유산소 운동 후 작업기억, 적혈구 수와 헤모글로빈에서 정적인 상관을 나타냈고, 저항성 운동 후 작업기억과 체지방률은 부적상관, 작업기억과 인슐린 유사성장인자-1은 정적인 상관을 나타냈다. The purpose of this study was observing the change of working memory and analyzing the hematologic factors which is contribute to the change of working memory. This study was conducted in healthy adult males with moderate aerobic exercise and moderate resistance exercise during 12 weeks. The participants were divided into the three groups: non exercise group(n=10), moderate aerobic exercise group(n=9; 50% VO2max, 200kcal) and moderate resistance group(n=10, 50-55% RM, 728kJ). The exercise treatment was conducted three times a week for 12 weeks. Pre(D-7) and post(D+2) tests for body composition, grade exercise test, blood samples, and working memory were carried out in the same way to observe the change and relevance of variable after the exercise. As a result, the aerobic exercise affect a decrease of % body fat and red blood cell and an increase of hemoglobin and working memory. The moderate resistance exercise affect the increase of muscle mass, growth hormone, insulin-like growth factor-1, testosterone, hemoglobin and working memory. As a result of the observation on relevance of hematologic factors, which affect the change of working memory by moderate exercise type, positive relation was shown between working memory, red blood cell and hemoglobin after the aerobic exercise. Also, negative relation was shown between working memory and % body fat and the positive relation was shown between % body fat and growth hormone, insulin-like growth factor-1, after the moderate resistance exercise.