주철분의 소결강도에 미치는 분쇄방법의 영향

조남정,박익민 ( Nam Jung Cho,Ik Min Park ) 한국주조공학회 1986 한국주조공학회지 Vol.6 No.3

The effect of pulverizing methods on sintered strength of degraphitized gray cast iron swarf was investigated. The main results are as follows: 1) The compressive fracture strength level of sintered cast iron powder is in the order of cutter mill powder, mortar grinding powder and ball mill powder; This is considered to be due to the increase in surface roughness. The increase in surface roughness factor leads to the increase in green strength and sintered strength. 2) The compressive fracture strength of sintered products which were compacted at 12t/㎠ and sintered at 1150℃ for 90min in the vacuum atmosphere, is higher than that of parent gray cast iron by the factor 2.5. 3) The increase in sintered strength is due to the spheroidal graphite precipitation at the finely dispersed round pore.

PNF 하지패턴을 이용한 스텝퍼 운동이 20대 여성의 발목근력과 균형에 미치는 영향

조남정,김기환,최명숙,최대영,권재범,현주협,유병국,손경현,Cho, Nam-Jeong,Kim, Ki-Hwan,Choi, Myung-Suk,Choi, Dae-Young,Kwon, Jae-Beom,Hyun, Ju-Hyup,Yoo, Byung-Kook,Son, Kyung-Hyun 대한고유수용성신경근촉진법학회 2010 PNF and Movement Vol.8 No.3

Purpose : The aim of this study was to investigate the effects of stepper exercise using lower extremity patterns of PNF(Proprioceptive neuromuscular facilitation) on ankle muscle strength and balance ability of females in their twenties. Method : Twenty subjects participated in this experiment were carried out the exercise program dose of 5 days per week for 2 weeks. They were divided into two groups; using twist stepper group(lower extremity patterns of PNF group, n=10) and using straight stepper group(n=10). The effects of twist stepper and straight stepper were evaluated by measurements of normal standing(NSEO, NSEC), and dynamic type 1 and dynamic type 2, respectively. For each case, the experimental data were obtained about static balance in 3 items : mean X speed, mean Y speed and velocity moment, that of dynamic balance in 4 items : mean X speed, mean Y speed, time, distance. Results : The results of this study were as follows; 1) In straight stepper group, the statistically significants were significants were shown on right/left ankle muscle strength in case of dorsi-flexion. 2) In twist stepper group, the statistically significants were significants were shown on right/left ankle muscle strength in case of dorsi-flexion. 3) In straight stepper group, the statistically significants were significants were shown on right ankle muscle strength in case of plantar-flexion. 4) In twist stepper group, the statistically significants were significants were shown on right/left ankle muscle strength in case of plantar-flexion. Conclusion : The above results revealed that twist stepper exercise using lower extremity patterns of PNF was more effective than straight stepper exercise for improving the ankle muscle strength.

지연성 근육통에 마사지와 키네시오 테이핑이 근력과 유연성 및 통증에 미치는 영향

조남정,Cho, Nam-Jeong 대한물리치료과학회 2012 대한물리치료과학회지 Vol.19 No.2

Purpose : The purpose of this study was to investigate, The Effects of Massage and Taping on Muscle Strength and Flexibility and Pain with Delayed Onset Muscle Soreness(DOMS). DOMS is a common problem that can interfered with rehabilitation as well as activities of daily living. Methods : Thirty subjects untrained were randomly assigned into Massage group, Taping group, Massage and Taping group. Treatment were applied at 24 hours, 48 hours and 72 hours after induction DOMS. The effects of Massage and Taping and Muscle strength and flexibility on DOMS were evaluated by a goniometer and dynamometer and taping and VAS sheet. Results : The results of this study were as follow : 1) There was a significant difference among Taping group, Massage group, Taping and massage group in the case of using graduator. The interaction of group shown a significance (p<.05). 2) In the case of using goniometer, all three groups had the significant difference in period (p<.05) and the interaction of group-period shown a significance(p<.05). 3) In the case of using VAS, all three group had the significant differences in period(p<.05) and the interaction of group-period shown a significance(p<.05). Conclusions : These findings suggested that Taping and Massage had effect on DOMS.

테이핑과 체간의 구심성 운동이 근력, 지구력 및 유연성에 미치는 영향

조남정,최원제,박선하,박현주,오상부,오한석,함정대,유병국,이삼철,손경현,Cho, Nam-Jung,Choi, Won-Jye,Park, Sun-Ha,Park, Hyun-Ju,Oh, Sang-Bu,Oh, Han-Suk,Ham, Jeong-Dae,Yoo, Byung-Kook,Lee, Sam-Cheol,Son, Kyung-Hyun 대한물리치료과학회 2009 대한물리치료과학회지 Vol.16 No.3

Background: The purpose of this study is to measure the amount of influence of taping and a whole body balance upon muscle strength, endurance, and flexibility. Experiments were conducted by two different groups, specially designed for this study. The choice of exercise methods for each group depends on its own idiosyncratic characteristics (or Each group employs its own idiosyncratic exercise method). Methods: The first group, with taping applied, undertook exercises three times a week; second group just took exercises three times a week. These experiments show the following outcomes. Results: The first group showed a considerable amount of difference in terms of muscle strength, endurance, and flexibility. Second group also showed similar outcome. Both the first group and the second group revealed a considerable difference. But the first group showed a bigger difference than the second group. Conclusion: Thus, the result of these experiments strongly indicates that exercise, with taping applied, turns out the most effective in promoting muscle strength, endurance, and flexibility.

체외충격파 치료가 동결견 환자의 통증과 견관절 기능에 미치는 영향

조남정,박지환,Cho, Nam-Jung,Park, Ji-Whan 대한정형도수물리치료학회 2007 대한정형도수물리치료학회지 Vol.13 No.2

Purpose: The purpose of this study was to assess the effectiveness of Extracorporea Shock - Wave Therapy (ESWT) on the pain and improvement of shoulder joint function which is one of the available medical treatment in patients with frozen shoulder. Object and Methods: 26 patients with frozen shoulder, with 26 patients assigned to two groups; a control treatment group (n=12) and a ESWT application group (n=14). In the ESWT application group, the patients received general physical therapy, and then they received ESWT. In the control treatment group, the patients received only general physical therapy. These medical treatments was conducted total 6 time for 3 weeks. To investigate the effectiveness of the treatment after the each group's treatment. Pain was measured by Visual Analogue Scale (VAS) which is divided into 10 ranks and shoulder joint function was measured by CSA(Constant Shoulder Assessment scale). Results: 1. There was a statistical significance of measured by shoulder pain degree in both group but, the result of a ESWT application group shows more significance than that of a control treatment group. 2. There was a statistical significance of measured by CSA in both group but, the result of a ESWT application group shows more significance than that of a control treatment group. Conclusion: We think that treatment with General physical therapy and ESWT together for the patients with frozen shoulder is more effective and more safe method to shoulder joint function improvement and decrease of pain.

경피 두개 직류 전류자극과 병행한 유산소운동이 노인 여성의 근지구력에 미치는 영향

조남정 ( Cho Namjeong ),김수현 ( Kim Suhyon ) 대한통합의학회 2018 대한통합의학회지 Vol.6 No.2

Purpose : The purpose of this study was to investigate the effect of increased brain activity on the muscle endurance and the effect of brain activation through the combination of transcranial direct current stimulation and aerobic exercise on elderly woman. Methods : To investigate the effect of the muscle endurance on right leg, muscle endurance was evaluated by measuring the surface EMG of the muscles of the rectus femoris, biceps femoris, tibialis anterior, and gastrocnemius muscle. Results : There was a significant difference in the pre and post comparisons of muscle endurance on rectus femoris, biceps femoris, tibialis anterior muscle (p<.05). Difference of Combination of transcranial direct current stimulation and aerobic exercise group median frequency was smaller than control group (p<.05). There was not a significant difference in the pre and post comparisons of muscle endurance on biceps femoris, and gastrocnemius muscle. Difference of Combination of transcranial direct current stimulation and aerobic exercise group median frequency was showed a similar pattern. Conclusion : Through these results, It was found that increasing the brain activity by the transcranial direct current stimulation improves the exercise capacity on the elderly women. Combination of transcranial direct current stimulation and aerobic exercise maybe applied as an effective treatment for improving muscular endurance.

시,청각리듬자극이 만성 뇌졸중 환자의 정적균형과 동적균형에 미치는 영향

조남정 ( Nam Jeong Cho ) 대한통합의학회 2013 대한통합의학회지 Vol.1 No.4

Purpose: The purpose of this study was to investigate the effect of visual·Auditory rhythmic stimulation(VARS) in gait ability and proprioception with chronic stroke patients. Twenty-one persons after six months post stroke participated in pre test-post test control. Method: The subjects were randomly assigned to a visual·Auditory rhythmic stimulation(VARS) group (n=10) and control group (n=11). Training process was practiced with exercise on thirty minutes a day, three days a week for four weeks. To find out the effect, inspected the FRT(functional reach test) by static balance and TUG(timed up and go test) by dynamic balance. Results: In static balance, FRT distance was significantly different between two group. In dynamic balance, TUG time was significantly different between two group. This study showed that the VARS training increase a balance by postural adjustment of chronic stroke patients more than control group. And so, the VARS training of hemiplegic patients was very important to successive rehabilitation. Conclusion: A continuous examination of VARS training could practical used of physical therapy with exercise.

광주,전남 지역의 물리치료학 전공 학생들의 임상실습만족도

조남정 ( Nam Jeong Cho ),정준성 ( June Sung Chung ) 대한통합의학회 2013 대한통합의학회지 Vol.1 No.2

Purpose : The purpose of the research is that get a cut above clinical practice effect through satisfaction of clinical training, practical training, content, oversight of training and evaluation system. Clinical training consists of part of university in Gwang Ju and Jeon nam. Method : The target of training student was studying at physiotherapy a tree or four-year-course collage in Gwang ju and Jean nam. Data collection period is from 21 November 2012 to 1 February. We explained how to do a means of collecting data and get students consent fill in questionnaire. Data collection prossed by using spss 10.1 program also independent proofs, descriptive statistics, crosstabulation, regression analysis and frequency analysis. Results : The subjects average age is 24 in general characteristic. A school system of subjects was a tree-year-course students. They were 58people(39.1%). A school system of subjects was a four-year-course students. They were 90people(60.9%).The male was 72(48.6%) and the female was 76(51.4%). We researched to know about satisfaction of clinical training, practical training, content, environment of practical establishment, trainee manage and evaluation method. All-round satisfaction of clinical training average was 1.90 Satisfaction of clinical training period and content average was 1.83Satisfaction of environment of practical establishment average was 1.88 Satisfaction of clinical training establishments` trainee manage and evaluation average was 1.94 Conclusion : It is important that student can get specific their future and can do at clinical throught clinical training after their graduation improving satisfaction of clinical training would give to impact a physical therapist reserve.

아로마 테라피가 두통을 가진 20대 여대생의 통증과 ROM 및 피로도에 미치는 영향

조남정(교신저자) ( Nam Jeong Cho ),신광호 ( Kwang Ho Sin ) 대한통합의학회 2016 대한통합의학회지 Vol.4 No.1

Purpose : The purpose of this study was to exam effects of aroma therapy on the woman with headache in range of motion, results based on Pain and the tiredness index. we applied this study in female patients with headache. tiredness, stress, pain to examine effects of easing off headache, Tiredness. Methods : The study has been conducted with three different groups of “H” University in Gwangyang, the forty-five 20’s female university student with headache were randomly assigned to groups each groups did a survey to evaluate their tiredness, VAS, VRS before this study and after there are three groups: 15 people gets a swedish massage by using almond oil(ⅠGroup, n= 15), 15 people got a swedish massage by using lavender oil(Ⅱ Group, n=15) and 15 people got a swedish massage by using lavender oil, smalled at the scent of lavender candle(Ⅲ Group, n=15). Ⅰ,Ⅱ,Ⅲ Group common characteristics(gender, age, height, weight) were measured by using goniometer to measured flexion·extension, left·right flexion, left·right rotation of cervical range of motion. the measured data were analyzed by using repeated ANOVA. Especially in order to investigate the effect of Aroma therapy by using lavender candle this study is progressed 20 minutes, 3 times per week for a term of 3weeks(total 9). Results : The results of this study were as follows : 1) the VAS and VRS showed significant different result. 2) in the range of motion, cervical extension between Group Ⅰand Ⅱ and left·right flexion between GroupⅠand Ⅲ showed quite motional difference. 3) in the tiredness, there were no significant factors after examination. Conclusion : Therefore, the results of this study demonstration that the effect of Aroma therapy by using lavender candle didn’t show prominent effects.

시각리듬자극이 만성뇌졸중 환자의 보행과 고유수용감각에 미치는 영향

조남정(Cho, Nam-Jeong),이동엽(Lee, Dong-Yeop) 한국산학기술학회 2010 한국산학기술학회 학술대회 Vol.- No.-

본 연구는 만성 뇌졸중 환자를 대상으로 시각리듬자극(RVS)을 이용한 보행 운동을 적용하여 보행과 고유수용성감각에 미치는 효과를 알아보고자 하였다. 뇌졸중으로 6개월 이상 장애를 가진 21명이 연구에 참여하였고 실험군 10명과 대조군 11명으로 나누었다. 대조군은 14m의 보행로가 확보된 공간에서 준비운도 5분, 보행운동 20분, 정리운동 5분 씩 주 3회, 4주간 12회을 실시하였고, 실험군은 대조군의 운동프로그램과 같은 조건에서 보행운동시 시각리듬자극(RVS)을 추가적으로 적용하였다. 운동 전과 후에 보행과 고유수용성감각을 측정하여 효과를 비교하였다. 통계처리 방법으로 실험 전‧후 차이를 검증하기 위하여 대응표본 t 검정을 실시하였고 대조군과의 차이 검증을 위하여 독립표본 t 검정을 실시하였다. 모든 통계적 유의수준은 0.05로 하였다. 본 연구의 결과 시각리듬자극(RVS)이 적용된 실험군에서 보행속도와 분속수, TUG 시간이 유의하게 증가하였고(p<.05), 고유수용성감각이 유의하게 증가하였다(p<.05). 결론적으로 시각리듬자극(RVS)을 이용한 보행운동이 만성 뇌졸중 환자의 보행과 고유수용성감각에 효과가 있는 것으로 나타났다. 향후 만성 뇌졸중 환자에게 음악적 요소인 시각리듬자극(RVS)이 정신적·육체적 기능을 상실한 뇌졸중 환자의 재활치료 프로그램에 적용하는 연구가 필요할 것으로 기대되어진다.