목표설정 유형에 따른 경쟁불안 및 자기효능감의 차이 분석

최영옥,이병기 한국체육대학교 체육과학연구소 2000 韓國體育大學校附屬 體育科學硏究所論文集 Vol.19 No.1

This study was designed to examine the effect of goal setting on competitive anxiety and self-efficacy. 246 high school shooters with more than three years' experiences(M=97, F=149) reported their competitive anxiety on CSAI-2, and the level of self-efficacy on SET. The implications of the study are as follows: 1.Self-made rather than assigned goal setting by coaches was more effective in cognitive anxiety. 2.Self-made rather than assigned goal setting by coaches was more effective in somatic anxiety. 3.Self-made rather than assigned goal setting by coaches was more effective in self-efficacy.

유산소성 운동 방법에 따른 에너지대사 및 스트레스 반응

옥정석,최병욱,강찬금 한국운동과학회 1999 운동과학 Vol.8 No.3

유산소성 운동 방법에 따른 에너지대사 및 스트레스 반응. 운동과학, 제8권 제3호, 323-334, 1999. 본 연구의 목적은 인터벌 유산소성 운동과 지속적 유산소성 운동에 따른 에너지 대사 및 스트레스 반응의 차이를 규명하는 것이었다. 여자대학생 10명을 대상으로 휴식 인터벌(6분×50%V˙O₂max)과 운동 인터벌(3분×85%V˙O₂max)을 반복하여 실시하는 인터벌 운동과, 60%V˙O₂max 강도로 계속하여 운동하게 하는 지속성 운동의 두 가지 운동 방법에서 모두 30㎉의 열량을 소비하도록 운동 시간을 정하였다. 운동 중 및 회복기(30분)의 산소소비량과 호흡교환률은 SensorMedics사의 Vmax227에 의해 측정되었다. 혈액은 주정맥으로부터 안정시, 운동 직후, 회복기 30분에 5㎖씩 채혈하였으며, 혈액성분(Cortisol, TG, FFA)은 현대의학연구소에 의뢰하여 결과를 분석하였다. 실험실 온도는 23±1℃, 습도는 60%로 하였다. 연구의 결과는 다음과 같다. 1. 산소소비량 호흡교환률, 칼로리소비량은 운동 중과 회복기에 운동 방법 간의 유의한 차이가 없었다. 2. 혈중 Cortisol 농도는 운동 중과 회복기에 운동 방법간의 유의한 차이가 나타나, 인터벌 운동이 지속성 운동에서보다 운동 후 높은 Cortisol 농도를 보였다. 그러나 TG, FFA는 운동 방법 간에 차이가 없었다. 따라서 300㎉를 소비하는 일회성 운동의 경우에 있어서 전체적으로 두 가지 운동 방법이 지방소비에 미치는 영향의 차이가 없지만 운동 직후 및 회복기에 걸친 혈중 Cortisol 농도가 지속성 운동이 인터벌 운동보다 낮게 나타난 점을 고려할 때 지속성 운동이 인터벌 운동보다 신체적 부담이 적은 방법이라 판단된다. Energy metabolism and responses of stress to two selected methods of aerobic exercise. Exercise Science 8(3); 323-334, 1999. The purpose of this study was to compare the effects of interval heavy exercise and continuous moderate exercise on the energy metabolism and responses of stress. Ten(22.7±2.5 aged) female college students were performed interval exercise(50% V˙O₂max for 6min, 85% V O₂max for 3min) and the continuous exercise(60% V˙O₂max) on treadmill. Durations were calculated to spend 300㎉ a session. V˙O₂ and R were measured by Vmax229 of SensorMedics corporation. Blood samples were drawn from antecubital vein at the pre, post immediate and at 30min recovery after exercise. Blood samples were used to analyze the concentrations of Cortisol, FFA and TG in Hyundai Medical Laboratory. Environmental temperature in experimental Lab was 23±1℃, humidity 60%. Results of this study were as follows. First, There was non significant difference of V˙O₂, R. energy expenditure between exercise methods to during exercise and recovery. Second, Cortsol levels in during exercise and recovery were significantly different between exercise methods. Interval exercise were showed value higher cortisol levels than during Continuous exercise. But, there was non significant difference of TG and FFA between exercise methods. The blood concentration of cortisol decreased uninterruptedly during continuous exercise in the recovery period. As a result both of interval and continuous exercises were effective in fat metabolism, but continuous more safety to manage weight control in the consideration of lower level of cortisol.

Poster Session 1 : Genomics and Bioinformatics Proteomics Chemical Genetics / Genomics ; SNPflank for retrieving flanking sequences of single nucleotide polymorphism markers

( Hyo Jin Kang ),( Kyoung Oak Choi ),( Byung Dong Kim ),( Sang Soo Kim ),( Chang Bae Kim ),( Jung Min Seo ),( Young Joo Kim ) 한국생화학분자생물학회 (구 한국생화학회) 2004 생화학분자생물학회 춘계학술발표논문집 Vol.2004 No.-

Crystallographic and Magnetic Properties of Nickel Substituted Manganese Ferrites Synthesized by Sol-gel Method

Kwang Pyo Chae,Won Oak Choi,Jae-Gwang Lee,Byung-Sub Kang,Seung Han Choi 한국자기학회 2013 Journal of Magnetics Vol.18 No.1

Nickel substituted manganese ferrites, Mn1-xNixFe₂O₄ (0.0 ≤ x ≤ 0.6), were fabricated by sol-gel method. The effects of sintering and substitution on their crystallographic and magnetic properties were studied. X-ray diffractometry of Mn0.6Ni0.4Fe₂O₄ ferrite sintered above 523 K indicated a spinel structure; particles increased in size with hotter sintering. The Mossbauer spectrum of this ferrite sintered at 523 K could be fitted as a single quadrupole doublet, indicative of a superparamagnetic phase. Sintering at 573 K led to spectrum fitted as the superposition of two Zeeman sextets and a single quadrupole doublet, indicating both ferrimagnetic and paramagnetic phase. Sintering at 673 K and at 773 K led to spectra fitted as two Zeeman sextets due to a ferrimagnetic phase. The saturation magnetization and the coercivity of Mn0.6Ni0.4Fe₂O₄ ferrite sintered at 773 K were 53.05 emu/g and 142.08 Oe. In Mn1-xNixFe₂O₄ (0.0 ≤ x ≤ 0.6) ferrites, sintering of any composition at 773 K led to a single spinel structure. Increased Ni substitution decreased the ferrites’ lattice constants and increased their particle sizes. The Mossbauer spectra could be fitted as the superposition of two Zeeman sextets due to the tetrahedral and the octahedral sites of the Fe³? ions. The variations of saturation magnetization and coercivity with changing Ni content could be explained using the changes of particle size.

FDG-PET/CT as prognostic factor and surveillance tool for postoperative radiation recurrence in locally advanced head and neck cancer

Giwon Kim,Yeon Sil Kim,Eun Ji Han,Ie Ryung Yoo,Jin-Ho Song,Sang-Nam Lee,Jong Hoon Lee,Byung-Oak Choi,Hong-Seok Jang,Sei-Chul Yoon 대한방사선종양학회 2011 Radiation Oncology Journal Vol.29 No.4

Purpose: To evaluate the prognostic value of metabolic tumor volume (MTV) and maximum standardized uptake value (SUVmax) on initial positron emission tomography-computed tomography (PET-CT) and investigate the clinical value of SUVmax for early detection of locoregional recurrent disease after postoperative radiotherapy in patients with locally advanced head and neck squamous cell carcinoma (HNSCC). Materials and Methods: A total of 100 patients with locally advanced HNSCC received primary tumor excision and neck dissection followed by adjuvant radiotherapy with or without chemotherapy. The MTV and SUVmax were measured from primary sites and neck nodes. The prognostic value of MTV and SUVmax were assessed using initial staging PET/CT (study A). Follow-up PET/CT scan available after postoperative concurrent chemoradiotherapy or radiotherapy were evaluated for the SUVmax value and correlated with locoregional recurrence (study B). A receiver operating characteristic (ROC) curve analysis was used to define a threshold value of SUVmax with the highest accuracy for recurrent disease assessment. Results: High MTV (>41 mL) is negative prognostic factor for disease free survival (p = 0.041). Postradiation SUVmax was significantly correlated with locoregional recurrence (hazard ratio 1.812; 95% confidence interval 1.361 to 2.413; p < 0.001). A cut-off value of 5.38 from follow-up PET/CT was identified as having maximal accuracy for detecting locoregional recurrence by ROC analysis. Conclusion: MTV at staging work-up was significantly associated with disease free survival. The SUVmax value from follow-up PET/CT showed high diagnostic accuracy for the detection of locoregional recurrence in postoperatively irradiated HNSCC.

FDG-PET/CT as prognostic factor and surveillance tool for postoperative radiation recurrence in locally advanced head and neck cancer

Kim, Gi-Won,Kim, Yeon-Sil,Han, Eun-Ji,Yoo, Ie-Ryung,Song, Jin-Ho,Lee, Sang-Nam,Lee, Jong-Hoon,Choi, Byung-Oak,Jang, Hong-Seok,Yoon, Sei-Chul The Korean Society for Radiation Oncology 2011 Radiation Oncology Journal Vol.29 No.4

Purpose: To evaluate the prognostic value of metabolic tumor volume (MTV) and maximum standardized uptake value (SUVmax) on initial positron emission tomography-computed tomography (PET-CT) and investigate the clinical value of SUVmax for early detection of locoregional recurrent disease after postoperative radiotherapy in patients with locally advanced head and neck squamous cell carcinoma (HNSCC). Materials and Methods: A total of 100 patients with locally advanced HNSCC received primary tumor excision and neck dissection followed by adjuvant radiotherapy with or without chemotherapy. The MTV and SUVmax were measured from primary sites and neck nodes. The prognostic value of MTV and SUVmax were assessed using initial staging PET/CT (study A). Follow-up PET/CT scan available after postoperative concurrent chemoradiotherapy or radiotherapy were evaluated for the SUVmax value and correlated with locoregional recurrence (study B). A receiver operating characteristic (ROC) curve analysis was used to define a threshold value of SUVmax with the highest accuracy for recurrent disease assessment. Results: High MTV (>41 mL) is negative prognostic factor for disease free survival (p = 0.041). Postradiation SUVmax was significantly correlated with locoregional recurrence (hazard ratio, 1.812; 95% confidence interval, 1.361 to 2.413; P < 0.001). A cutoff value of 5.38 from follow-up PET/CT was identified as having maximal accuracy for detecting locoregional recurrence by ROC analysis. Conclusion: MTV at staging work-up was significantly associated with disease free survival. The SUVmax value from follow-up PET/CT showed high diagnostic accuracy for the detection of locoregional recurrence in postoperatively irradiated HNSCC.