[제1주제] 한일 중소기업분야 경제협력의 현황과 전망

황봉연 韓國貿易學會 2002 國際學術大會 論文集 Vol.2002 No.10

프리즘 : 경수로사업의 추진현황과 기대효과 남북관계 개선의 교두보역할 한다

황봉연 평화문제연구소 1998 통일한국 Vol.174 No.-

[제1주제] 한일 중소기업분야 경제협력의 현황과 전망

황봉연 한국무역학회 2002 한국무역학회 국제학술대회 Vol.2002 No.10

[발제 6] 냉각과 체온반응

황봉연,이대택,배윤정,손윤선 한국웰니스학회 2012 한국웰니스학회 학술발표회 Vol.2012 No.12

더위에서 지구성 운동 후 회복조건이 체온, 피부혈류, 피로물질 반응에 미치는 영향

황봉연(HwangBong-yeon),윤소미(YunSomi),황은진(HwangEun-jin),이윤빈(LeeYun-bin),이대택(LeeDae-taek) 한국체육학회 2018 한국체육학회지 Vol.57 No.5

본 연구는 더위에서 지구성 운동 후 회복조건이 체온, 피부혈류, 피로물질에 미치는 영향을 비교하였다. 운동 후 회복조건은 하체 주위온도(상온 vs. 냉온(15±2℃))와 수동적 페달링 여부 (페달링 vs. 안정)의 조합으로, 상온×안정(ANP), 상온×페달링(APP), 냉각×안정(CNP), 냉각×페달링(CPP) 이었다. 총 9명 남성이 무선배정으로 참여하였다. 실험은 25±1℃에서 10분간 안정 후, 36-37℃에서 최대능력의 55-60%로 50분간 사이클링을 실시하고, 회복은 네 조건 중 하나에서 30분간 진행되었다. 안정기와 회복기는 직장온, 피부온, 피부혈류량이 측정되었고, 평균체온과 열저장률은 산출되었다. 피로물질의 반응을 위해 프로락틴과 젖산이 측정되었다. 회복기 동안 직장온(ANP; -1.1%, APP: -1.9%, CNP: -1.9%, CPP: -1.6%, p=0.024)과 피부온(ANP: -3.9%, APP: -2.4%, CNP: -4.1%, CPP: -5%, p=0.022)은 상호작용효과가 나타났다. 평균 체온과 열저장률은 회복조건들 사이에 차이가 없었다. 피부혈류, 프로락틴, 젖산도 네 회복조건 사이에 차이가 없었다. CNP와 APP 회복조건은 ANP과 비교하여 심부온이 더 감소하였다. CPP도 ANP과 비교하여 심부온이 낮았다. 본 연구의 신체주위 공기 냉각방식은 물, 바람과 비교해 인체에 강한 자극을 주지 않은 것으로 보인다. 공기의 온도를 낮춘 냉각 형태와 수동적 페달링은 하루 동안 많은 경기를 치러야 하는 스포츠 종목에서 운동수행능력의 향상에 긍정적인 효과를 발휘할 수 있을 것이다. This study compared different recovery conditions on body temperature (Tb), skin blood flow (BF) and blood fatigue factors after endurance exercise in the heat. Four conditions were combinations of two factors; lower body air temperature (ambient vs. cooling; 15±2℃) and passive pedaling (pedaling vs. non-pedaling), as ambient×non-pedaling (ANP), ambient×passive pedaling (APP), cooling×non-pedaling (CNP), and cooling×passive pedaling (CPP). Nine men completed randomly assigned tests. During tests, they rested for 10 min at 25±1℃, and cycled at 55-60% of maximal capacity for 50 min in 36-37℃, followed by 30 min recovery. During tests, rectal (Tre) and skin temperature (Tsk), BF, measured and mean Tb and heat storage rate (HSR) were calculated. During recovery, Tre (ANP: -1.1%, APP: -1.9%, CNP: -1.9%, CPP: -1.6%, at p=0.024) and the mean Tsk (ANP: -3.9%, APP: -2.4%, CNP: -4.1%, CPP: -5%, at p=0.022) were significantly different. Tb and HSR were not different. No interactions were noticed during recovery in BF, prolactin, and lactate. Tre of CNP and APP was lower than ANP. Tre in CPP was also lower than in ANP. The cooling rate in this study was not faster than those previously reported, probably due to a lack of strong stimulus. It can be proposed that passive pedaling with cooling by air temperature may enhance exercise performance in sports requiring several trials in a day.

스포츠영양 교육을 통한 중학교 사이클 선수의 영양지식 및 음식선택 양상 변화

이대택,황봉연,박성건,유아랑,손무영,김명화,이명천 한국웰니스학회 2010 한국웰니스학회지 Vol.5 No.2

Age- and Sex-Related Walking Patterns in Unrestricted Inner City Park Trail Walkers

진수정,이대택,황봉연,손윤선,배윤정 한국생활환경학회 2014 한국생활환경학회지 Vol.21 No.4

The present study examined age- and sex-related differences in the walking patterns of recreational park walkersduring unrestricted walking. Three video cameras were unnoticeably and sequentially positioned along a paved parktrail. Each camera continuously filmed free walkers who consecutively passed three segments of trail: down slope (DS;5.83o, 83.5 m long), level (LV; 0o, 10 m long), and up slope (US; 8.90o, 98.4 m long, 2.23 m width), for one hour. Camerasrecorded a 9-m distance of each representative segment, which was marked by plastic tape 2 cm wide. The visualimage was stored on a digital video cassette, and a video digital program (Dart Fish) was utilized for analyzing steplength (SL) and walking speed (WS). Only adults and clear images were included for analysis. The sex was identified andthe age span was categorized visually into three groups (20 – 39 years, young; 40 – 59 years, middle; and ≥ 60 years, oldage) by a technician. All recordings were conducted on a clear spring day. A total of 56 men and 121 women passedthrough all the trail segments analyzed. For men, the average SL was 81.3 ± 9.6, 82.3 ± 7.6, and 80.2 ± 8.8 cm, and theaverage WS was 1.42 ± 0.20, 1.40 ± 0.18, and 1.29 ± 0.19 m/sec on the DS, LV, and US trail segments, respectively, andwas not different between age groups and the segments. For women, both SL (70.2 ± 5.2, 71.7 ± 3.7, and 68.6 ± 8.7 cm)and WS (1.23 ± 0.07, 1.22 ± 0.11, and 1.07 ± 0.18 m/s on the DS, LV, and US trail segments) of the old age group weresignificantly less than those of the other two age groups as well as that of aged men in corresponding trail segments (p <0.05). No differences were observed in WS on all the trail segments between men and women. Based on the results,walking patterns of older women were distinctive compared to the youngers and the older men indicating age- and sexrelateddifferences of free walking in terrestrial environment.

내리막길 달리기 운동 전 수온에 따른 하체 입수가 근손상에 미치는 영향

장정택,이대택,황봉연,이승범 한국생활환경학회 2012 한국생활환경학회지 Vol.19 No.4

This study aimed to investigate the effect of lower body immersion to cold water followed by downhill treadmill running on muscle damage and pain sensation. Eleven college students participated in the study and were randomly assigned one of three experimental trials; cold (15oC) water immersion (CWI), thermoneutral (31oC) water immersion (TWI), and hot (40oC) water immersion (HWI). During pre-experimental test, maximal oxygen uptake (VO2max) was determined and individual exercise intensity of 70% of VO2max which used during experimental trial was obtained. During each trial, they rested 30 min in an ambient air and immersed in one of three water temperature conditions for 15 min. Then they ran on a downhill treadmill sustained at -17.6% for 40 min. Before and after immersion period and exercise, body core and skin temperature was measured. Blood creatine kinase (CK) and lactate dehydrogenase (LDH) as indicators of muscle damage was measured before, immediately after, 1 hr after, and 24 hr after exercise. Based on results, body core and mean skin temperature in HWI were significantly different from other two conditions after immersion. No interactions were found in CK and LDH. Although no interactions were found in pain sensations, it was elevated immediately after exercise and maintained high until 24 hr after exercise in HWI. Pain sensation was also significantly different between TWI and HWI at 24 hr after exercise. CK concentration as an indicator of muscle damage was not different among conditions, but the lowest increase was observed after 24 hr of exercise in TWI. TWI before exercise of inducing muscle damage was effective in reducing muscle pain sensation compared to HWI.

중거리 사이클 경기 후 말초부위 냉각과 활동적 페달링 회복이 피로물질 변화와 경기수행능력에 미치는 영향

손무영 ( Mu Young Son ),황봉연 ( Bong Yeon Hwang ),이대택 ( Dae Taek Le ),차광석 ( Kwang Suk Cha ) 한국스포츠정책과학원(구 한국스포츠개발원) 2012 체육과학연구 Vol.23 No.3

This study examined the effect of peripheral cooling and pedaling recovery following 2 km individual pursuit on the performance enhancement of the 500 m time trial in middle school competitive cyclists. In addition, it was examined whether changes of blood lactate level modified by the active pedaling and cooling recovery would contribute to the performance enhancement. Eight middle school competitive cyclists participated. They underwent two randomly assigned separate sessions; cooling condition (CC) and normal condition (NC). In each session, they rested seated and completed a 2 km simulated race. Then, they recovered for 30 min; 1) 10 min seated recovery with cooling (in CC) or no treatment (in NC), 2) 10 min active pedaling, and 3) 10 min seated recovery with cooling (in CC) or no treatment (in NC). Following the recovery, they competed for the 500 m simulated race. Before the race, SRM (Schoberer Rad Mebtechnik) was installed on a track cycle and individual fitting was performed. Peripheral cooling was done while the cyclist seated and submerged their two feet upto the ankle in 10℃ water. Neither difference between conditions nor interactions were found in blood lactate level. A significant interactions in body core temperature was noticed (p<0.001), but no significant changes in mean skin temperature during recovery period were found. The average pedaling power during 500 m time trial was greater in CC than NC (p<0.05). However, the maximal pedaling power and race time was not different between conditions. Collectively, the peripheral cooling following 2 km race did not reduce the blood lactate level efficiently, but the cooling improved the average pedaling power in the 500 m time trial. Based on the results, the peripheral cooling during recovery may be a contributing recovery strategy for performance enhancement. 이 연구는 중학교 사이클 선수들을 대상으로 2km 개인 추발 후 말초부위의 냉각 회복방법이 500m 독주 경주의 경기력 향상에 미치는 영향을 조사하는 것이다. 또한 활동적 페달링 회복과 냉각회복에 따른 젖산농도변화가 경기력 향상에 기여할 수 있는지 분석하는 것이다. 8명의 연구대상자들이 실험에 참여하였다. 대상자들은 냉각회복조건(Cooling Condition; CC)과 일반회복조건(Normal Condition; NC)으로 실험 전 무선배정 되었고 총 2회 실험을 하였다. 실험은 앉아서 안정, 2km 모의 경주, 회복30분(모의경주 후 10분 동안 냉각 또는 일반회복, 그 다음 10분에서 20분까지 10분 동안 활동적 페달링 회복, 그 후 20분에서 30분까지 10분 동안 냉각 또는 일반회복), 500m 모의 경주 순서로 진행되었다. 실험 전 트랙사이클에 SRM(Schoberer Rad Mebtechnik)을 장착하고 개인별로 안장과 핸들의 위치를 조정하였다. 냉각회복은 대상자들이 앉아서 10℃ 물에 발목까지 입수하는 방법이었다. 실험결과 젖산 농도는 조건과 시기사이에 상호작용이 나타나지 않았다. 심부온도는 상호작용효과가 나타났으나(p<.001), 평균피부온은 회복조건간 차이가 없었다. 500m 모의 경주에서 평균 페달링 파워는 냉각회복조건이 더 높았다(p<.05). 그러나 최대페달링파워와 경주기록에는 조건간 차이가 없었다. 따라서 중거리 경기 후 말초부위의 냉각회복은 혈중 젖산 농도를 효과적으로 감소시키지 못했지만 추후의 500m 독주 경주에서 평균 페달링 파워를 향상 시켰다. 결론적으로 말초부위 냉각회복은 경기력향상에 기여할 수 있는 회복전략이라 생각된다.

[발제 2] Consideration for Exercise of Early Stage Stomach Cancer Survivor(ESSCS)

배윤정,이대택,손윤선,황봉연 한국웰니스학회 2012 한국웰니스학회 학술발표회 Vol.2012 No.12