지하 매설용 센서 노드의 Cost인지 라우팅 프로토콜

조수연(Cho Su Youn),조인휘(Jo In Whee) 한국통신학회 2009 한국통신학회 학술대회논문집 Vol.2009 No.6

본 논문은 지하 환경의 특수성을 고려하여 매설용 센서 노드들의 Cost 인지 라우팅 프로토콜 방안을 제안한 것으로써 UCAR(Underground Cost Aware Routing)라 표현하겠다. UCAR은 소스 노드에서 목적지 노드까지의 전송 홉을 고려함을 기본으로 하나, 전송 홉 이외에도 전송간의 Cost값과 배터리의 잔량을 인지하여 최적의 경로를 선택하는 것을 그 목적으로 하고 있다. 우리가 제안하는 효율적인 지하 환경 라우팅 방법은 기존의 GPSR방식에 비해 패킷 전송간의 목적지 까지의 경로와 전송 노드등의 상태 등을 고려하여 다음 노드를 결정함으로써 PER을 최대 50%이상 향상됨을 실험을 통해 확인 할 수 있었으며, 배터리 사용량을 단축 시키는 장점등을 실험으로 확인하였다.

일회성 유산소 운동 강도의 차이가 인체 뇌 기능 지표 및 인지 기능에 미치는 영향

조수연(Su Youn Cho),김정규(Jung Kyu Kim),노희태(Hee Tae Roh) 한국사회체육학회 2013 한국사회체육학회지 Vol.0 No.52

The purpose of this study was to investigate the effects of acute aerobic exercise intensity in brain function index and cognition. In this study, treadmill running was carried out for 10 healthy males until consume about 300kcal at 50%VO2max, 60%VO2max and 85%VO2max respectively. Blood-sampling was carried out three times(Rest, end of exercise, after 60min of recovery), and with the collected blood, serum BDNF, NGF, TrkB and IGF-1 were analyzed. Also stroop color-word test performed at same times as blood sampling. The re-sults of study showd that the concentrations of serum BDNF, NGF, IGF-1, TrkB and stroop color-word test scores were significantly increased after acute aerobic exercise(p<.05). And the concentrations of BDNF and NGF in serum and Stroop color test score were significantly higher increased after 85%VO2max exercise than 50%VO2max exercise(p<.05). These results suggest that high intensity-exercise than low-intensity exercise has more positive effects on cognitive functions by increasing the BDNF and NGF.

고강도 운동 시 성별에 따른 혈장 MDA, SOD 및 임파구 DNA 손상 변화

Su-Youn Cho(조수연),Young-Soo Chung(정영수),Yi-Sub Kwak(곽이섭),Hee-Tae Roh(노희태) 한국생명과학회 2011 생명과학회지 Vol.21 No.6

본 연구는 고강도 1회성 운동 시 혈장 MDA와 SOD의 농도변화와 임파구 DNA 손상에 대한 성별의 차이를 평가하는데 목적이 있었다. 본 연구의 목적을 달성하기 위하여 남자 대학생과 여자 대학생을 대상으로 85%VO2max all-out 운동수행에 따른 혈장 MDA와 SOD 그리고 임파구 DNA 손상에 대한 분석을 실시하였으며, 연구 결과에 대한 결론은 다음과 같다. 85%VO2max all-out 운동에 따른 혈장 MDA와 SOD는 운동 종료 시 유의하게 증가하였으며, 통계적으로 유의한 차이는 나타나지 않았으나 남성이 여성에 비해 MDA는 높고 SOD는 낮은 경향을 보였다. 반면 85%VO2max all-out 운동에 따른 임파구 DNA 손상을 알아보기 위해 실시한 comet assay 결과 세 가지 parameter (%DNA in the tail, tail length, tail moment) 모두 운동 종료 시 유의하게 증가하였으며 남성의 %DNA in the tail과 tail length가 여성에 비해 통계적으로 유의하게 높게 나타났다. 따라서 본 연구 결과를 종합해보면 1회성 고강도 운동은 산화적 스트레스를 유발할 수 있으며 남성이 여성에 비해 산화적 손상이 더 크다고 보여진다. 그러나, DNA 손상에는 산화적 스트레스 외에도 체력, 호르몬 수치, 생활습관, 운동 강도 및 지속시간 등 여러 가지 요인들이 영향을 줄 수 있다고 보고되고 있어, 성별에 따른 DNA 손상에 대한 명확한 기전을 제시하기 위해서는 DNA 손상에 영향을 줄 수 있는 여러 요인들과의 관계를 고려한 지속적인 연구들이 필요하다고 생각된다. The purpose of this study was to investigate gender-specific changes of plasma MDA, SOD, and lymphocyte DNA damage during high intensity exercise. In this study, 17 healthy male and 18 healthy female college students ran on a treadmill at 85%VO2max until the point of all-out. Blood-collecting was carried out five times (Rest, Ex-Exha, R0.5h, R4h and R24h), and with the collected blood, plasma malondialdehyde (MDA), superoxide dismutase (SOD), and lymphocyte DNA damage were analyzed. Plasma MDA and SOD concentration increased significantly at the Ex-Exha (p<0.05), and there were no significant differences in gender. For the degree of lymphocyte DNA damage, all %DNA in the tail, tail length and tail moment increased significantly at the Ex-Exha (p<0.05), and %DNA in the tail and tail length were significantly higher in the male group than in the female group (p<0.05). These results suggest that acute high intensity exercise not only causes oxidative stress but also brings about lymphocyte DNA damage. In addition, it was found that males showed higher DNA damage than females in terms of oxidative stress subject to high intensity exercise. Nevertheless, further subsequent studies are required in order to better understand the mechanism behind DNA damage varying with gender, in a way that takes into consideration physical fitness, hormonal level, exercise intensity and duration ? additional factors which might affect DNA damage.

지하 매설용 센서 네트워크를 위한 협력 라우팅 프로토콜

조수연(Cho Su Youn),조인휘(Jo In Whee) 한국통신학회 2009 한국통신학회 학술대회논문집 Vol.2009 No.11

8주간 유산소 훈련에 따른 여자대학생의 항산화능 및 임파구 DNA 손상 변화

조수연(Su Youn Cho),노희태(Hee Tae Roh) 한국사회체육학회 2011 한국사회체육학회지 Vol.0 No.44

The purpose of this study is to examine the effects of endurance exercise training on antioxidant capacity and lymphocyte DNA damages caused by cardiorespiratory endurance and 85%V·O2max all-out exercise by conducting an 8 weeks endurance exercise training for 19 healthy female undergraduates. To achieve the purpose of this study, treadmill running was conducted at the intensity of 70%HRR for 8 weeks. Before and after the training, 85%V·O2max all-out exercise test was conducted. At the 85%V·O2max all-out exercise test, blood samples were taken 5 times respectively before and after the training. With the samples, serum lactate, plasma SOD, and lymphocyte DNA damages were analyzed. The results of the study showed that V·O2max and exercise duration increased significantly(p<.05) after the 8 weeks endurance exercise training. It was also showed that serum lactate caused by high intensity acute exercise decreased significantly at each time of blood taking after the endurance exercise training(p<.05). There were significant differences in the activity of plasma SOD and lymphocyte DNA damages after the endurance exercise training(p<.05). It was also found that there are significant correlations between the changes of V·O2max caused by the 8 weeks endurance exercise training and the changes of plasma SOD, %DNA in the tail and tail moment. Conclusively, 8 weeks regular endurance exercise training can decrease DNA damages by increasing cardiorespiratory endurance and the activity of anti-oxidant and relieving oxidative stress.

BCAA와 OKG 및 Albumin 가중 투여가 장시간 운동 시 피로물질요인과 에너지기질에 미치는 영향

조수연 ( Su Youn Cho ),백일영 ( Il Young Paik ),우진희 ( Jin Hee Woo ),김근수 ( Keun Su Kim ) 한국스포츠정책과학원(구 한국스포츠개발원) 2004 체육과학연구 Vol.15 No.3

본 연구의 목적은 BCAA와 OKG 및 albumin 가중투여가 장시간의 운동 시 혈중 피로물질변화와 에너지기질 동원에 미치는 영향을 규명하는데 있다. 연구 대상자는 남자 대학생 5명으로 하였으며 8주간 실험을 실시하였다. 피험자 5명은 각각의 투여방법에 따른 실험에 모두 참여하였으며, 투여 실험의 순서는 비투여(control), BCAA, BCAA+OKG, BCAA+albumin 순으로 하였다. 모든 투여방법의 실험 시 운동은 트레드밀을 이용하여 90분동안 달리기를 시행하였으며, 운동 강도는 속도 5mph, 경사도 3%로 설정하였다. 혈액은 운동 전, 운동 45분, 종료 시, 회복 30분에 채혈하고, 채혈된 혈액으로 혈중 피로물질인 암모니아, 5-HT, 젖산, 무기인산염 그리고 에너지기질인 글루코스와 유리지방산의 농도 변화를 분석하였다. 중추 피로요소인 암모니아 농도는 모든 시기에서 control군과 BCAA투여군에 비해 BCAA+OKG 투여군과 BCAA+ albumin 투여군이 낮게 나타났으며, BCAA +albumin 투여군이 가장 낮았고, BCAA 투여군이 가장 높게 나타났다. 5-HT는 운동 전에서 운동 45분까지 control군과 BCAA 투여군이 BCAA+OKG 투여군과 BCAA +albumin 투여군에 비해 높은 농도를 보였다. 그러나 운동 90분에는 BCAA+albumin 투여군이 가장 높았고 BCAA+OKG 투여군이 가장 낮게 나타났다. 말초 피로요소인 젖산은 전반적으로 BCAA 투여군이 가장 높았으며 BCAA+OKG와 BCAA+albumin 투여군이 낮은 경향을 보였다. 에너지기질인 글루코스의 혈중농도는 전반적으로 control군이 가장 높았고, BCAA+albumin 투여군이 가장 낮았으며, 운동 시기 간에 유의한 차이가 있었다(p<.05). 유리지방산의 혈중 농도는 모든 시기에서 BCAA+albumin 투여군이 가장 높았고, BCAA 투여군이 가장 낮았으며, 투여군 간과 운동 시기 간 모두 유의한 차이가 나타났다(p<.05). 이상의 연구 결과, 운동 수행에 부정적 영향을 미칠 수 있는 BCAA 단독 투여와는 달리 OKG나 albumin 가중투여는 BCAA 단독 투여시 나타날 수 있는 피로물질 축적의 감소를 가져올 뿐 아니라, 장기간 운동 시 BCAA가 에너지기질로 사용될 수 있게 함으로써, 운동수행에 이로운 영향을 미칠 수 있다고 볼 수 있으며, 특히 BCAA+albumin 투여가 가장 효과적인 것으로 사료된다. Purpose: The purpose of this study was to investigate the effects of BCAA and additional OKG or albumin supplements on fatigue factors and energy substrates changes in prolonged exercise. Methods: The subjects of this study were 5 male college students and the order of experiments was control, BCAA, BCAA+OKG, BCAA+ albumin. In each experiment, the subject ran for 90 minutes on the treadmill and exercise intensity was 3% gradient and 5mph. Blood was drawn five times; before the exercise, after 45 minutes of exercise, end of exercise, and 30minutes after ending of exercise. Blood was used to analyze ammonia, 5-HT, lactate, glucose and FFA. Results: The concentration of blood ammonia was low in the BCAA+OKG and BCAA+albumin groups compared to control and BCAA groups. And, lowest in the BCAA+albumin supplement group during exercise and recovery. The 5-HT concentration of control and BCAA supplement groups represented higher than BCAA+OKG and BCAA+albumin groups from resting to 45 min of exercise. However, at 90 min of exercise, BCAA+albumin group was highest, but BCAA+OKG was the lowest. The concentration of lactate was the highest in the BCAA supplement group, but represented low tendency in the BCAA+OKG and BCAA+albumin supplement group at the end of exercise and recovery. In glucose, control group was the highest, but BCAA+albumin supplement group was the lowest at the end of exercise and recovery. The concentration of FFA was the highest in the BCAA+albumin supplement group, but was the lowest in the BCAA supplement group at the 45 min and 90 min of exercise. Conclusion: As the result of this study was shown, BCAA and additional OKG or albumin can solve these problems that BCAA accumulate fatigue factors when it is oxidized. Furthermore, BCAA can be used as energy substrate when OKG or albumin is added to BCAA. Therefore, it is considered that BCAA and additional OKG or albumin supplement has effects on prolonged exercise. Specially, we are considered by thing which BCAA+albumin supplement is the most effect.

Effects of Acute Soccer Game on Serum Levels of Neurotrophins and Neurocognitive Functions in Male Adolescents

Jung-Su Yang(양정수),Shin-Hwan Yoo(유신환),Su-Youn Cho(조수연),Hee-Tae Roh(노희태) 한국생명과학회 2012 생명과학회지 Vol.22 No.11

본 연구의 목적은 1회성 축구활동이 남자 청소년의 혈청 뉴로트로핀 수준과 신경인지 기능에 미치는 영향을 규명하는데 있다. 연구의 대상은 건강한 남자 청소년 15명으로 하였으며, 연구 대상은 축구활동 처치(SOC) 조건과 자율학습 처치(CON) 조건의 2가지 처치 조건에 참여하였다. 채혈은 처치 전(Pre), 처치 후(Post), 처치 후 2시간(Post-2 h) 시점에서 총 3회 실시하였으며, 채취된 혈액을 이용하여 혈청 serum brain-derived neurotrophic factor (BDNF), nerve growth factor (NGF), insulin-like growth factor-1 (IGF-1)을 분석하였다. 신경인지 기능의 평가는 Stroop 색체-단어 검사를 이용하였으며, 채혈 시점과 동일한 시점에서 측정하였다. 연구 결과, 혈청 BDNF, NGF, IGF-1 수준은 축구활동 후 유의하게 증가하였으며(p<0.05), Post 시점에서 SOC 조건이 CON 조건과 비교하여 유의하게 높게 나타났다(p<0.05). Stroop 색체-단어 검사는 색체-단어 검사 점수에서 축구활동 후 유의한 증가를 나타내었으며(p<0.05), Post 시점과 Post-2 h 시점에서 SOC 조건이 CON 조건과 비교하여 유의하게 높게 나타났다(p<0.05). 이상의 결과를 종합하면, 1회성 축구활동이 뉴로트로핀을 증가시켜 신경인지 기능에 긍정적 영향을 나타낸 것으로 판단된다. The purpose of the present research is to investigate the effects of acute soccer game on serum levels of neurotrophins and neurocognitive function. The subjects of the research were 15 healthy male adolescents. The subjects underwent two experiments: one experiment in the soccer game treatment (SOC) condition, and the other in the self-study treatment (CON) condition. Blood samples were collected at three times: before treatment (Pre), after treatment (Post), and 2 hours post treatment (Post-2h) for the analyses of serum brain-derived neurotrophic factor (BDNF), nerve growth factor (NGF), and insulin-like growth factor-1 (IGF-1). For the measurements of neurocognitive functions, the Stroop Color-Word test was performed at blood collecting times. The results of the research showed that the serum levels of BDNF, NGF, and IGF-1 were significantly increased after the soccer game (p<0.05), and significantly higher in SOC than CON at Post (p<0.05). In the Stroop Color-Word test, significantly increased scores were observed in SOC at Post (p<0.05), and significantly higher in SOC than in CON at Post and Post-2 h (p<0.05). These results suggest that acute soccer game has positive effects on neurocognitive functions by increasing the neurotrophins.

두개전기자극과 유산소성 트레이닝이 폐경 후 중년여성의 혈중 cortisol, beta-endorphin, BDNF 및 기분상태척도에 미치는 영향: 예비 연구

김영일 ( Young Il Kim ),조수연 ( Su Youn Cho ) 한국운동생리학회 2015 운동과학 Vol.24 No.2

PURPOSE: The purpose of this study was to investigate the effects cranial electrotherapy stimulation treatment and aerobic exercise on blood cortisol, beta-endorphin, BDNF and profile of mood states (POMS) in post-menopausal middle-aged women. METHODS: The subjects for this study were 18 post-menopausal middle-aged women and they were randomly divided into cranial electrotherapy stimulation group (CES, n=9) and aerobic exercise group (Ex, n=9). CES was conducted with a microcurrent cranial electrotherapy stimulator for 30 minutes at 100 μA and 0.5 Hz. EX was conducted treadmill running for 30 minutes at 70 %HRR. Blood samples were taken at Pre and Post treatment. RESULTS: For cortisol was shown to significantly decrease at Post in Ex (p <.05) while the brain-derived neurotrophic factor (BDNF) was shown to significantly increase at Post in Ex (p <.05). For Tension-Anxiety and Depression-Dejection scores were shown to significantly decrease at Post in CES and Ex (p <.05) while the Vigor-Activity scores were shown to significantly increase at Post in CES and Ex (p <.05). CONCLUSIONS: It is concluded that cranial electrotherapy stimulation treatment and aerobic exercise was sufficient to improve the mood. However, cranial electrotherapy stimulation treatment did not affect cortisol and BDNF levels.

12주간의 복합운동 처치가 비만 여대생의 혈중 산화적 스트레스 지표, 신경영양인자 및 기분상태척도(POMS) 변화에 미치는 영향

노희태(Roh, Hee-Tae),조수연(Cho, Su-Youn) 한국사회체육학회 2014 한국사회체육학회지 Vol.0 No.58

The purpose of this study was to investigate the effects of combined exercise on oxidative stress, neurotrophin and Profile of Mood States(POMS). The subjects for this study were 22 obese college females who had more than 30% of body fat and they were randomly divided into control group(Con, n=12) and exercise group(Ex, n=10). During exercise training for 12 weeks, resistance exercise of 8 events was conducted with 80% of 1-RM by circuit weight training method and aerobic exercise conducted treadmill walking and/ or running for 30 minutes. Blood samples were taken at before combined exercise(Pre) and at after combined exercise(Post). For oxidative stress, the malondealdehyde(MDA) level was shown to significantly increase at Post in Ex(p<.05) while the superoxide dismutase(SOD) activity was shown to significantly decrease at Post in Ex(p<.05). For neurotrophins, the BDNF and NGF levels were shown to significantly increase at Post in Ex(p<.05). For POMS, Depression-Dejection(D-D) score was shown to significantly decrease at Post in Ex(p<.05). On the base of the results of the this study, it is suggested that combined exercise can induce decrease levels of oxidative stress and increase levels of neurotrophins which may positively influence on the POMS depression subscale.

스쿠버 운동 시 서로 다른 호흡 산소 분압 차이가 헤마토크리트 변화에 미치는 영향

김덕중(Duk Jung Kim),조수연(Su Youn Cho),김정규(Jung Kyu Kim) 한국사회체육학회 2013 한국사회체육학회지 Vol.0 No.51

This research examined the effect of oxygen partial pressure on hematocrit changes in SCUBA diving exercise Ten male university students divers performed cycle exer cise on immersion at 5 m and a pedaling of stationary bike for 20 min. Blood was drown from ante cubital v ein at resting, immediately after exercise, and 30min after that. No significant differences was found in circulating red blood c ell, mean corpuscular volume and mean cor -puscular hemoglobin concentration among the three experimental conditions. There were significant differences in hematocrit levels, hemoglobin, and mean corpuscular hemoglobin among the three different experimental conditions. In conclusion, The hyperbaric hyperoxia condition during cycle exercise on immersion was found to effect the hematocrit and hemoglobin. The phenomenon maybe related to hyperbaric hyperoxia condition. The hyperbaric hyperoxia condition can lead to improve diffusive oxyg en transport as indicated by the improvement of local tissue oxygen partial pressure in the absence of a sig nificant change in total oxygen delivery capacity. Our results indicate that exercise in the hyperbaric hyperoxia condition like scuba diving might be play a role in the change the blood profile and hemodynamics.