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The change of muscle dysmorphia through bodybuilding for 12 weeks : Korean college students
Deokjin Kim 국제문화기술진흥원 2019 International Journal of Advanced Culture Technolo Vol.7 No.2
The central purpose of the current research is to identify how 12-week bodybuilding exercise affects muscle dysmorphia. The research subjects consisted of an experimental group and a control group, each with 16 freshmen at college. MDI(muscle dysmorphic inventory), developed by Schlundt, Woodford, Brownlee(2000) was utilized to collect relevant data, which was analyzed by PASW 18.0. An independent two sample t-test was conducted to see whether there exists any significant difference between the two groups in the pre- and the post-tests. A paired t-test, in turn, was performed to identify whether there is any difference between the two tests for each group. The statistical significance level was set at p<.05. It was found that the experimental group marked a higher level of muscle dysmorphia than the control group in the pre-test. It was also found that muscle dysmorphia of the experimental group increased in the post-test, while no significant difference was manifested in the control group in the post-test.
The change of muscle dysmorphia through bodybuilding for 12 weeks : Korean college students
Kim, Deokjin The International Promotion Agency of Culture Tech 2019 International Journal of Advanced Culture Technolo Vol.7 No.2
The central purpose of the current research is to identify how 12-week bodybuilding exercise affects muscle dysmorphia. The research subjects consisted of an experimental group and a control group, each with 16 freshmen at college. MDI(muscle dysmorphic inventory), developed by Schlundt, Woodford, Brownlee(2000) was utilized to collect relevant data, which was analyzed by PASW 18.0. An independent two sample t-test was conducted to see whether there exists any significant difference between the two groups in the pre- and the post-tests. A paired t-test, in turn, was performed to identify whether there is any difference between the two tests for each group. The statistical significance level was set at p<.05. It was found that the experimental group marked a higher level of muscle dysmorphia than the control group in the pre-test. It was also found that muscle dysmorphia of the experimental group increased in the post-test, while no significant difference was manifested in the control group in the post-test.
Are college athletes' self-reflection and insight related to performance?
Deokjin Kim 국제문화기술진흥원 2022 International Journal of Advanced Culture Technolo Vol.10 No.4
The purpose of this study was to investigate whether there is a difference in self-reflection and insight according to the performance level of college athletes. A total of 395 (210 male, 185 female) college athletes from 6 universities were sampled. The level of performance was divided into upper, middle, and lower groups based on the results of matches played in the past 1 year. To measure self-reflection and insight, THE SELF-REFLECTION AND INSIGHT SCALE developed by Grant et al. [4] was used. As a result, there was a statistically significant difference according to the level of performance, and as a result of post-hoc(scheffe) analysis, the upper group of performance was higher than that of the middle group and the lower group.
LII 및 LIS 계측기법을 이용한 디젤 연소실내 soot 계측
김덕진(Deokjin Kim),정재우(Jaewoo Chung),이춘범(Chunbeom Lee),서동규(Dongkyu Seo),이원남(Wonnam Lee) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In-cylinder measurements of soot particle size and number density have been made using LII(Laser Induced Incandescence) and LIS(Laser Induced Scattering) measurement techniques in a direct injection diesel optical engine. LII/LIS measurement techniques and calibration techniques with laminar diffusion flame of co-flow burner are used to obtain quantitative information of soot particle. Two optical techniques were used simultaneously involving LII and LIS signal. One Intensified CCD camera was used to obtain 2D light signal images.
김덕진(Deokjin Kim),정호창(Hochang Jung),오광철(Kwangchul Oh),김진완(Jinwan Kim) 한국자동차공학회 2013 한국자동차공학회 지부 학술대회 논문집 Vol.2013 No.5-2
Since traction motors for powertrain of electric vehicles have a wide operating range, they are not equally efficient at every speed and torque condition. Typically, powertrain system of electric vehicles consists of traction motor and single speed gearbox, but this configuration is not enough to get optimal fuel economy and driving performance for real-world driving cycles which have different characteristics simultaneously. A multi-speed configuration of powertrain could reduce the electric energy consumption without degradation of drviving performance, evne if the traction motor power is reduced.