• Korean Security Journal
• /
• no.31
• /
• pp.187-207
• /
• 2012

The purpose of this study was to analyze the punching movement at the horseback riding stance, one of the basic movements in Taekwondo, with 3D images and further the kinetic variables such as time, velocity, angle, angular velocity, and angular acceleration according to the types. It also aimed to examine the characteristics of each type and suggest instructional methods for the right punching movement. For those purposes, three members from the College Taekwondo Poomse Demonstration Squad were put to the test. The research findings led to the following conclusions: 1. Performance Time of the Punching Movement : In Section 1, Type 1 and 2 recorded $0.24{\pm}0.07s$ and $0.42{\pm}0.08s$, respectively, for the punching movement at the horseback riding stance. While Type 1 took less performance time in the punching movement, Type 2 took less time for take back according to each section's percentage in the total performance time. 2. Variables of Linear Velocity and Linear Acceleration : Each type recorded different linear velocity for each aspect, but the highest linear velocity represented the moment of impact for each type. Type 2 recorded the highest linear velocity in Aspect 4, which was the moment of impact. 3. Variable of Joint Angle : There were no big outer differences in the joint angle during the punching movement between Type 1 in the aspect of impact and Type 2, but the individuals assumed dynamic positions in the punching movement of Type 2 with more diverse changes to the joint angle. 4. Variables of Angular Velocity and Angular Acceleration During the punching movement of Type 1, the Aspect 3 in the moment of impact recorded angular velocity of $0.79{\pm}0.02deg/s$, $0.91{\pm}0.04deg/s$, and $5.24{\pm}0.09deg/s$ at the pelvis, shoulder, and wrist respectively. During the punching movement of Type 2, the Aspect 3 in the moment of impact recorded angular velocity of $1.32{\pm}0.03deg/s$, $0.21{\pm}0.03deg/s$, and $4.98{\pm}0.08deg/$ at the shoulder, wrist, and pelvis, respectively. In the Aspect 3 in the moment of impact in Type 2, the angular acceleration at the right wrist joint was $176.24{\pm}1.11deg/s^2$, which was bigger than that in the moment of impact in Type 1.

• Korean Journal of Applied Biomechanics
• /
• v.15 no.1
• /
• pp.91-109
• /
• 2005

The goal of this research was to determine whether gender differences exist in impact force and impact shock variables at stance phase during a preferred running. Ten male and ten female subjects volunteered to participate in this study. Impact force was quantified by using a surface-mounted force plate. In addition, Axial accelerations of the tibias and mouth were measured using low-mass accelerometers. Comparison of parameters relating to impact force and impact shock which attained from time domain, and impact shock parameters which were analyzed in frequency domain were made between genders. The conclusions based on results were as follows; 1. There were no significantly differences in impact force, mouth and tibia acceleration peak in time domain between two genders. 2. The male group was greater in impact shock peak of PSD(power spectral density) at the tibia than female group(p<.05), but no differences in active impact of PSD at the tibia and the mouth between two genders. 3. Female subjects exhibited that a peak of impact shock attenuation analyzed in frequency domain moved toward a high frequency, but no difference in time domain between two genders.

• Journal of Korean Physical Therapy Science
• /
• v.19 no.3
• /
• pp.49-56
• /
• 2012

Background : The purpose of this study is to understand the effects of ankle joint taping on balancing abilities of the elderly and to provide preliminary data on preventing falls among the elderly. Methods : In this study, 20 students(8 male, 12 female) in their 20s from D University as well as 14 elderly(4 male, 10 female) in their 70s from S community center have participated. The participants were well informed about the experiment and voluntarily participated. We measured the difference in balancing ability before and after taping between the two groups using methods such as standing on single-leg stance, TUG, and plantar pressure. Kinesio taping, a stop-watch, and the EMED-system were used as equipment along with the SPSS 12.0 program, with a significance level of 0.05, to test the difference before and after taping between the two groups. Result : First, the 70s group showed a significant increase in the dorsal flexion angle after taping. Second, the 70s group showed a significant increase in duration time of standing on one foot after taping. Third, the 70s group's TUG time was significantly shorter. Fourth, the maximum peak value for static and dynamic plantar pressure showed a significant decrease after taping; and dynamic plantar pressure area value decreased as well within significant range. Conclusion : The study has shown that taping is effective on static dynamic balancing ability of the elderly.

• The Journal of Korean Physical Therapy
• /
• v.24 no.5
• /
• pp.313-318
• /
• 2012

Purpose: This study examined the effects of an exercise program involving the Proprioceptive Neuromuscular Facilitation (PNF) lower-extremity patterns on the Bone Mineral Density (BMD), balance and lower muscular strength in patients with osteoporosis. Methods: The participants were allocated randomly to 2 groups: experimental group and control group. To evaluate the effects of exercise, the subjects were evaluated using the BMD and Time Up & Go Test and One Leg Stance Test for balance, and the Sit To Stand for lower muscular strength. Results: After the 8 week study, the experimental group showed a significant difference in all items compared to the control groups. Conclusion: These results suggest that a PNF exercise program is effective in patients with osteoporosis. Furthermore, an exercise program involving these patterns can be used in a follow-up program for patients with osteoporosis. Overall, more study will be needed to develop and apply more efficient exercise programs for such patients.

• Korean Institute of Interior Design Journal
• /
• no.22
• /
• pp.69-76
• /
• 2000

Contemporary architecture in Japan is entering an entirely new phase in the second half of the 1980s. In the late 1960s, doubts began to be expressed about Modernism, which until then had been the recognized mainstream of architecture. There was much discussion, but it was only in the early '80s that an active debate was initiated concerning Post-Modernism. Today, however, matters have gone beyond this, and the situation appears particularly significant. The Japanese architecture world was hitherto understand to be fundamentally very different from its western counterparts. There are several trends in current Japanese architecture which have still come out of the Japanese tradition of life, culture, region, climate itself. At the same time, stance of contemporary Japanese architecture start from a common basis in world's design stream which can be called Post-Modernism, Deconstructivism, Neo-Modernism. This study is aimed at analysis of 'Regional Characteristics' in Contemporary Japanese Architecture.

• Journal of the Korean Society of Physical Medicine
• /
• v.6 no.2
• /
• pp.199-205
• /
• 2011

Purpose: The purpose of this study was to investigate the effect of 0cm, 2.5cm, 5cm height increase elevator shoes insole on gait and foot pressure Methods: Fifteen young adult were recruited this study. Gait and foot was measured by Gait AnalyzerTM(Tech Storm Inc. korea). Statistical analysis was used one-way ANOVA to know difference between 0cm, 2.5cm insole and 5cm insole Results: There was no significantly difference on foot length, foot width, foot angle, step time during gait. But step length and step width was significantly difference during gait. There was no significantly difference on gait ratio during stance phase. There was significantly difference on forefoot pressure and rearfoot pressure ratio. Conclusion: These results indicate that height increase elevator shoes insole may be caused step length, step width decreaseed during gait. It caused forefoot pressure increased and rearfoot pressure decreased on foot.

• Journal of Biomedical Engineering Research
• /
• v.21 no.2
• /
• pp.213-218
• /
• 2000

Pressure distributions of the soft tissue are valuable for understanding and diagnosing the disease characteristics due to the mechanical loading. Our system measures dynamic pressure distributions in real-time under the general PC environment, and analyzes various foot disorders. Main features of the developed system are as follows: (1) With the resistive pressure sensor matrix of 40${\times}$40 cells, the data is sent to the PC with the maximum sampling rate of 40 frames/sec. (2) For each frame, contact area, pressure and force are analyzed by graphic forms. Thus, various biomechanical parameters are easily determined at specific areas of interests. (3) A certain stance phase can be chosen for the analysis from the continuous walking, and the detailed biomechanical analysis can be done according to an arbitrary line dividing anterior/posterior or medial/lateral plantar areas. (4) The center of pressure (COP) is calculated and traced from the pressure distribution data, and thus the movement of the COP is monitored in detail. A few experiments revealed that our system successfully measured the dynamic plantar distribution during normal walking.

• Journal of Industrial Convergence
• /
• v.13 no.1
• /
• pp.25-40
• /
• 2015

The aim of this study is to a study on the effects of fertile women on the low fertility in Korea. It is designed to research a model and established hypothesis with emphasis on major variables based on theoretical discussions. However, the result of the study is as follows. Firstly, this brought in delivery avoid phenomenon thus resulting in lower delivery phenomenon. The government should propose reasonable solutions to persuade female personal value and important elements of delivery rate at the same time. Secondly, Patriarchal stereotypes weighting household labor to female traditionally pressures working female with double burden as dual stance of work and family worsen the delivery will. Such atmosphere within a family generates female with an ability to get pregnancy to avoid marriage and delivery. Lastly, the research has pointed out the delivery support policy as most ineffective policy among government policies. To solve this problem, the government policy to recover delivery rate must be reviewed continuously and to be exercised immediately.

• International Journal of Advanced Culture Technology
• /
• v.10 no.1
• /
• pp.102-107
• /
• 2022

The emergence of independent cinema in the United States in the 1960s was the earliest sign of postmodernism in the country, which was often referred to as "underground cinema". The works, in a counter-cultural stance, overturned the thought of depth of traditional art cinema, not exploring the meaningful relationship between form and content in terms of artistic technique, but creating an aesthetic that echoed the "Pop Art" of the time by collaging established means of expression with traditional and fashionable ones in a consumerist manner. In this paper, American independent cinema was examined, firstly by analyzing the local and external factors that contributed to its rise. Secondly, two genres of independent cinema core paradigm, "underground cinema" and "pop cinema" were focused on, as a way of demonstrating the attention and influence that independent cinema has gained. Finally, we found that independent cinemas are also seeking for alternative exploration and diverse expressions in the context of the times.

• Journal of Practical Agriculture & Fisheries Research
• /
• v.18 no.1
• /
• pp.47-61
• /
• 2016

Ranging from a variety that a consumer to purchase and consume, and a variety with high quality and pest resistance, sustaining biological diversity as well as hiring global experts who understand breeding policy, it tightly maintains relationship with producer, consumer, and exporter to promote superior species for customized export to exporting country. By carrying out researches on cost saving and how to shorten the period of apple to cultivate, it consolidates its stance as a competent apple exporting country of apple and pear with high competetiveness. In order to compete against apple and pear of New Zealand, farmers argue that they need budget and researchers also argue that "No money, no research." Due to certain limit of governmental budget support, it is believed that it is time to fund our own way to promote apple research center. To come up with the best apple production, all of those who associates with apple such as farmers, researchers, government, exporters, and consumer should do their best to enhance the apple and pear industry.