• 한국콘텐츠학회논문지
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• 제13권11호
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• pp.979-987
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• 2013

전문대학의 재학생 충원율은 갈수록 문제가 되고 있다. 특히, 중도탈락률의 증가는 전문대학을 심각한 위기로 몰고 있어도 속수무책인 상황이다. 왜냐하면, 중도탈락 가능성이 높은 학생들이 입학한 상태에서는 기존의 어떠한 방법도 중도탈락을 방지하기란 어렵기 때문이다. 따라서 본 연구는 중도탈락을 미연에 방지할 수 있는 새로운 방안을 모색하는데 목적을 두었다. 이를 위해 D대학의 입학전형별 중도탈락 실태를 파악한 후, 그 결과를 입학전형 방법과 절차에 반영함으로써 중도탈락을 개선하는 방법을 제시하였다. 또한, 입학전형별로 대학생활 만족도와 중도 탈락률 간 비교를 통해 중도탈락률을 개선하는 방법도 제시하였다. 본 연구에서 제안한 방법은 전문대학의 중도탈락률을 개선하는데 유효하게 적용될 것으로 기대한다.

• 지역사회간호학회지
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• 제16권4호
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• pp.478-487
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• 2005

Purpose: This study was to examine the achievement rate of smoking cessation, to identify obstacles to smoking cessation, and to find means to achieve the goal of smoking cessation in college smokers. Method: This study was conducted from April 26th to September 13th 2004 and used a one-shot design. The subjects selected by convenient sampling were 29 college smokers who smoked over one cigarette a day, had a positive level of urine cotinine, participated in smoking cessation education 3 times. Thereafter, individual interaction was processed between the researcher and the subject using an interaction instrument. Data were analyzed based on frequencies.,percentages and means using SPSS/Win 10.0. Results: The achievement rate of smoking cessation was 20.7% (6 students). The biggest obstacles smoking cessation were smoking stimuli (29 students) and lack of control (25 students). Among detailed obstacles, the biggest one was smoking at regular times, which was followed by withdrawal symptoms, smoking on drinking, and company with other smokers. The most effective means of smoking cessation mentioned by the subjects were in order of avoiding drinking situations, taking deep breaths, and exercising. Conclusion: The results of this study, using King's theory, showed that individual interaction is effective in achieving smoking cessation. Therefore, it is suggested to make further study and broaden smoking cessation education for college smokers.

• The Korean Journal of Physiology
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• 제30권1호
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• pp.43-51
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• 1996

This study was aimed to elucidate the changes in heart rate variability during treadmill exercise at various speeds and grades by spectral analysis. Thirty-three untrained male college students aged $20{\sim}26\;yr $were employed to exercise on a treadmill using 4 speeds (4.02, 5.47, 6.76 and 8.05 km/h) and 6 grades (0, 4, 8, 12, 16 and 20%). A fixed speed was selected for each session with the grade increased every 3 min. The electrocardiogram, respiration and the stepping activity were continuously recorded through an A/D converter system on the computer disk. Power spectra of heart rate variability (RRV) were obtained by use of a fast Fourier transform algorithm. The frequency domain was divided into 3 bands: $VLF\;(0{\sim}0.04\;Hz),\;LF\;(0.04 {\sim}0.15\;Hz)\;and\;HF\;(0.15{\sim}1.00\;Hz).$ Heart rate was $74.4{\pm}2.1\;beats/min$ at rest and showed a steady increase during treadmill exercise with increasing speed and grade up to $196.7{\pm}5.0\;beats/min.$ Total power of HRV was $35.0{\pm}6.7\;(beats/min)^{2}$ at rest and progressively decreased during exercise down to $1.9{\pm}0.3\;(beats/min)^{2}.$ The %VLF power of HRV was $34.5{\pm}3.7\; %$ at rest and showed no significant change during exercise except for a decrease observed at the highest intensity of exercise. The %LF power was $44.1{\pm}3.0\;%$ at rest and showed a progressive decrease down to $4.5{\pm}1.0\;%$ during those stages of exercise where heart rate was over 135 beats/min. The %HF power was $21.4{\pm}2.9\;%$ at rest and showed a progressive increase up to $87.1{\pm}6.7\;%$ during higher intensity exercise where heart rate was over 165 beats/min. Peak frequency of HF band was $0.200{\pm}0.018\;Hz$ at rest and was shifted to higher frequencies up to $0.909{\pm}0.048\;Hz$ at heart rates greater than 135 beats/min. Respiratory frequency was $18.0{\pm}1.5$ breaths/min at rest and significantly increased during exercise up to $53.0{\pm}3.7$ breaths/min. Stride frequency during treadmill exercise showed an increasing tendency with increasing speed from $55.6{\pm}0.9$ steps/min at 4.02 km/h to $81.2{\pm}0.6$ at 8.05 km/h. It was concluded that total power of HRV decreased progressively with increasing exercise intensity due to the withdrawal of parasympathetic activity. At higher exercise intensity, % LF power decreased and %HF power increased with its peak frequency shifted to higher values in a progressive mode with increasing speed and grade, reflecting a readjustment in the cardiovascular system and the increased respiration and its rate, respectively.

• 보건교육건강증진학회지
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• 제21권3호
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• pp.1-17
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• 2004

The purpose of this study is to evaluate the roles of expected self-control and expected self-control results in explaining adolescents' Internet addiction. In the study model, expectations of self-control and self-control results directly determine Internet addiction and Internet use time meditates the impacts of expectations of self-control and self-control results on Internet addiction. The study subjects are 1,080 middle and high school students in Busan. Stratified cluster sampling is applied by school type and school year. The response rate is 96%(l,037cases). This study develops the scales of expected self-control and expected self-control results. The scales of Internet addiction are devised by using the concept of functional dependency such as salience, withdrawal symptoms, mood modification, tolerance, relapse, and conflict. For verifying the study model, path analysis and multiple regression models are applied for identifying path significants and evaluating confounding effects of control variables, respectively. Moreover, multi partial F-test is performed for selecting the best regression model. Expected self-control is a significant determinant of Internet addiction and Internet use time that also significantly explains Internet addiction. The total effect of expected self-control towards Internet addiction is -.95. The total effect is comprised with the direct effect (-.71) and the indirect effect(-.24). In this result, the direct effect refers a curative effect since expected self-control directly reduces the level of Internet addiction, and the indirect effect refers a preventive effect because self-control can reduce time of Internet use that is a direct determinant of Internet addiction. In the test of the confounding effects of control variables, there are no confounding effects in the models of multiple regression. It implies a robustness of the study model as regards control variables. In conclusion, improving adolescents' expected self-control can control Internet addiction level. This finding implies that a health promotion program for improving expected self-control can be a cost effective method compared to other approaches.

• 생명과학회지
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• 제22권4호
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• pp.532-537
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• 2012

흡연자의 단시간의 흡연 중단이 안정 시 및 저강도(40% of $VO_2max$), 중강도(60% of $VO_2max$)에서의 일회성 유산소성 운동 중에 나타내는 심혈관 반응의 차이를 알아보는데 있다. 따라서 성인 남성 흡연자를 대상으로 흡연 직후, 흡연 중단 24시간과 흡연 중단 48시간 경과 후의 안정 시, 저강도, 중강도의 강도별 사이클 에르고미터를 통한 일회성 유산소 운동 시 심혈관계 반응을 검토하였다. 이에 따른 결과 흡연 직후, 흡연 중단 24시간과 흡연 중단 48시간 경과 후의 안정 시, 저강도, 중강도의 수준의 운동 강도별 사이클 에르고미터를 통한 일회성 유산소 운동 시 SBP, DBP, MAP, HR에서 유의한 감소가 나타났다($p$<0.05). 또한, 안정 시와 중강도에서는 CO의 유의한 감소가 나타났다($p$<0.05). 이상의 결과로부터 단시간의 흡연 중단은 교감신경의 항진상태를 완화시키고, 부교감신경계의 활성화로 인해 HR을 감소시킴으로써 안정 시와 동일 강도 유산소운동 시의 과도한 심혈관 반응을 완화키는 것으로 사료된다. 이를 통해 흡연자에게 있어 단기간의 흡연 금지만으로도 운동 중에 심혈관계 반응의 위험을 감소시킬 수 있다는 가능성을 나타냈다.