• Journal of the Korean Arthroscopy Society
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• v.1 no.1
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• pp.26-30
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• 1997

Recently, the incidence of anterior cruciate ligament injury is rapidly increasing because many young Korean are actively participating in sports activities including basketball, skiing and soccer. Sometimes acute ACL injuries arc misdiagnosed as sprain because of pain and muscle spasm. An accurate physical examination and careful history taking are very important to diagnose the ACL injuries. Therefore author described the skill of history taking and the technique of physical examination to diagnose ACL injuries. The most sensitive test is the Lachman's test, which is performed with the knee in 200 of flexion, the femur stabilized with full flexed examiner's knee placed behind patient's distal thigh and one hand of examiner, and the proximal tibia grasped with the other. The pivot shift test is a passive motion test that attempts to subluxate the tibia anteriorly, then have it reduce rapidly. The pivot shift test is very sensitive test to diagnose the chronic ACL injuries.

• Journal of the Korean Physical Society
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• v.73 no.10
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• pp.1410-1419
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• 2018

A skier's motion was analyzed by a simple model consist of point mass m and a single rod connected to a single ski plate. We studied the conditions for the stable ski turn as functions of the linear velocity and the radius of the turn. The solutions for the stable ski turn in our model do not require any extra skier's movement to complete a stable circular turn. The solution may then give the skier the most comfortable skiing method without any active movement to control the ski. The generalized force supporting the point mass from the ski plate was calculated. We obtained the force from the ground (rebound force) without any geometrical structure of the ski plate. Adding an active movement to the direction of the ski plate, the conditions for the stable ski turn were also analyzed. Our result gives some insight for the skier who wants to develop technique.

• Journal of Korea Game Society
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• v.19 no.2
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• pp.45-54
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• 2019

In this study, the effect of gamified disability awareness program was researched to examine its potential to be used as a disability awareness curriculum particular to Korean schools. The gamified program consisted of lessons related to disability skiing such as learning about Paralympic skier, experiencing mono skis, and participating in cooperative games. To examine its effectiveness, Multidimensional Attitudes Scale towards persons with disabilities (MAS) was used. Results indicate that the attitude of the experiment group showed significant change.

• Annual Conference of KIPS
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• 2008.05a
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• pp.520-521
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• 2008

이 논문은 강원도의 U-Sports 시범 사업 일환으로 진행된 강원도 용평 스키장의 사각지역 관리를 위해 적용된 USN기술을 소개한다. 스키장의 사각지역은 사람의 왕래가 뜸한 외각이나 관제의 시각 영역에서 벗어난 급경사 아래 지역 등을 말하는데, 이런 지역에서 사고가 발생하여 거동이 어려워지면 관제 센터에서 이에 대한 신속한 대응을 하기 힘들다. 이 논문의 사각지역 관리 시스템은 다섯 개의 이미지 센서 및 노드가 설치된 사각지역의 이미지를 USN을 통하여 중앙 관제 센터에서 주기적으로 관찰할 수 있을 뿐만 아니라, 사고 당사자가 주변에 설치된 긴급 버튼을 누를 경우에는 긴급 이미지가 관제 센터로 즉시 전송되어 신속한 구조를 가능하게 한다.

• Korean Journal of Applied Biomechanics
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• v.24 no.1
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• pp.19-26
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• 2014

This study investigated foot pressure patterns between experienced skiers and intermediate skiers during alpine skiing. Five experienced skiers and five intermediate skiers participated in this study. Foot pressure measurement system was used to measure vertical ground reaction force (vGRF) and contact area under the six plantar regions. Each participant was asked to perform basic parallel turns and carved turns on a $18^{\circ}$ groomed slope. Each right turn was divided into the initiation phase, the steering phase 1 and 2. For the initiation phase of the basic parallel turns, significantly greater contact area was found on the LRF and RRF of the intermediate skiers (p<.05) and significantly greater vGRF was found on the LRF of the intermediate skiers (p<.05). Also significantly greater vGRF and contact area were found on the LRF and RRF of the intermediate skiers at the steering phase 1 (p<.05) and on the LRF of the intermediate skiers at the steering phase 2 (p<.05). For the carved turns, significantly greater vGRF and contact area were found on the LRF and RRF of the intermediate skiers at all three phase (p<.05). On the other hand, significantly greater vGRF was found on the RFF of the experienced skiers at the steering phase 1 (p<.05). Also significantly greater vGRF and contact area were found on the RMF of the experienced skiers at the steering phase 2 (p<.05). In order to increase performance, we suggest that the intermediate skiers should be unweighted at the initiation phase and shift the body weight to the forefoot of the outer foot at the steering phase 1. Also, the outer ski should be loaded more than the both skis at the steering phase 1 and 2.

• Korean Journal of Applied Biomechanics
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• v.24 no.3
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• pp.201-207
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• 2014

This study investigated the center of mass and lower extremity kinematic patterns between carved and basic paralell turn during alpine skiing. Six experienced skiers (age: $20.67{\pm}4.72yrs$, body mass: $72.67{\pm}7.15kg$, height: $171.00{\pm}5.51cm$) participated in this study. Each skier were asked to perform carved and basic paralell turn on a $22.95^{\circ}$ groomed slope. Each turn was divided into the initiation phase, steering phase 1 and 2. The results of this study show that the carved turn spent significantly less running time than basic paralell turn at all three phases (p<.05). Also vertical displacement of the center of mass was significantly greater in carved turn at all three phases, whereas inward leaning angle of the center of mass was significantly greater in carved turn at the steering phase 1 and 2 (p<.05). Bilateral knee and hip joint angle were significantly greater in basic paralell turn at the initiation phase and the steering phase 2 (p<.05). On the other hand, left knee and hip joint angle were significantly greater in basic paralell turn at the steering phase 1 (p<.05). In order to perform successful carved turn, we suggest that skiers should coordinate bilateral knee and hip joint angles to adjust the center of mass, depending on three ski turn phases.

• Journal of Korean Orthopaedic Sports Medicine
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• v.1 no.2
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• pp.109-114
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• 2002

The types of Alpine ski injuries have changed through the years in relationship to the development of skiing equipment. Modern skis, boots and bindings are better at protecting the tibia, which previously was almost as commonly injured as the knee. Since the 1980s, severe knee sprains, most of them involving the anterior cruciate ligament have tripled while injuries of the lower extremity below the knee diminished significantly. However, recent studies show no further improvements in either lower leg fractures or increase in the rates of ACL sprains has occurred. The use of carving skis presents an increased risk for sustaining isolated ACL injuries in more skilled skiers and less skilled skiers are more likely to sustain an ankle fracture than skiers using conventional skis. To restore the trend of diminishing lower leg injury rates, efforts will be needed to motivate skiers to have their equipment serviced by ski shop professionals following ASTM (American Society for Testing and Material) standard procedures. As of now, there are no boots, bindings or skis on the market designed to protect skiers from the ACL injury. The only method proven to reduce ACL injury Is a training program based on recognizing the circumstances that lead to ACL injury in skiing and to avoid these events.

• Journal of Korean Society of Forest Science
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• v.86 no.1
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• pp.9-16
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• 1997

The contingent valuation method(CVM) has been used to evaluate the economic value of nonmarket goods such as forest recreation. There are two commonly used CVM questionnaire formats: open-ended and closed-ended. This study evaluates the net economic value associated with day use downhill skiing, using CVM. A random, on-site survey of skiers in Muju, Korea generated the value estimates. In this paper a nonparametric test is introduced to find whether the difference between value estimates from open-ended and closed-ended formats are significantly different because the distributions of WTPs are non-normally distributed. The results show that the net economic benefits of a skier in Muju varies from \15,131 to \25,332. The closed-ended values were 1.15 to 1.67 times as large as the open-ended values, depending on the model specifications. In nonparametric test the mean WTPs of the open-ended and close-ended applications are significantly different. Its reason may be that closed-ended can be more reducing the incentive for strategic behavior than open-ended question. However, we cannot conclude that the closed-ended method is superior to the open-ended method.

• Journal of Fashion Business
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• v.8 no.1
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• pp.91-106
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• 2004

This study focuses on the sportism expressed in the modern fashion. Many factors attribute to the advent of sportism such as rapid development and cultural changes toward sports, increase in leisure time, new fashion materials resulting from new technologies, youth culture and postmodernism. Designers gazing into the future are inspired by the details and functionality of clothing for snow boarding, skiing, rock-climbing and fitness. While the sportswear is the term whith stemmed from the need for functionally in sports, the Sportism is the style inspired by the formative elements, that is, the details, the silhouette, and the colors of the sportswear. New technologies for sports, the powerful influence of youthful culture, and the celebritizations of the sports stars made the sports look more popular. It can be categorized into three aesthetic values, i.e., the functional sportism, the street sportism, and the futuristic sportism. The functional sportism is expressed with the details of function, simplicity, and no useless ornament, the street sportism with fun, androgynous and unisex mode and the image of hip-hop look and traditional look, the futuristic sportism with new high tech fabrics and cyber style. The characters of these are a sence of unisex, sensualness, ostentation, renovation.

• Journal of the Korean Society of Costume
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• v.50 no.2
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• pp.15-28
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• 2000

This paper focuses on the sports look expressed in 20th century fashion. It is Age of Sport just as rock'n roll became dominant cultural form of the 1960's and 1970's . In the 1990's the sportsware is fashion. Designers gazing into the future are inspired by the details and functionality of clothing for snow boarding , skiing , motorbike racing and fitness. No doubt fashion in 2000 will also be full of references to it. Since the late 1960's the sportswear that was originally a term for clothing worn for various sports activities in the 1890's has changed and is now considered as fashion for day as well as evening. This has occurred primarily in the U.S. due to the adoption of less formal lifestyles by Americans. while the sportwear is the term which stemmed from the need for functionality in sports, sports look is the style inspired by the formative elements, that is, the details, the shilhouette, and the colors of the sportswear. New technologies for sports, the powerful influence of youthful culture, and the celebritizations of the sports stars made the sports look much hipper and more popular. It can be categoried into three aesthetic values, I. e., the functional sports look,, purism and no useless ornament, the street sports look with fun, androgynous and unisex mode and the mix and match of different texture and colors, and the futuristic sports look with new high tech fabrics and avant-garde style.