• 한국운동역학회지
• /
• 제20권4호
• /
• pp.365-372
• /
• 2010

The purpose of this study were to analyze the changes in kinematic and kinetic parameters and to find biomechanical benefits of Nordic Walking and normal gait performed under the same velocity. Nine participants(age: $26.73{\pm}3.28$ year, height: $182.45{\pm}4.62\;cm$, weight: $76.59{\pm}6.84\;kg$) was chosen. The velocity of gait was set by 5.75 km/h which was made by a Nordic Walking professional. The data were collected by using VICON with 8 cameras to analyze kinematic variables with 200 Hz and force platform to analyze kinetic variables with 2000 Hz. The results of this study were as follows. First, when compared with Normal gait, Nordic Walking group showed decreased Plantarflexion angle and ROM. Second, Nordic Walking group showed decreased knee flexion angle and ROM. Third, Nordic Walking group showed increased hip joint movement. Fourth, Nordic Walking group showed higher active GRF but decreased loading rate from delayed Peak Vertical GRF time and increased impulse. Fifth, Nordic Walking group showed longer ground contact time. Through this study, we found that Nordic Walking showed higher stability and efficiency during gait than normal gait and that Nordic Walking may help people who have walking difficulties.

• 대한물리의학회지
• /
• 제15권4호
• /
• pp.11-20
• /
• 2020

PURPOSE: This study examined the effects of Nordic walking on depression and the physical function of elderly patients with a high risk of depression. METHODS: This study was a blinded randomized allocation study; 32 elderly were assigned to a Nordic walking group (n = 17), consisting of 60 min Nordic walking (including warming up 5 min, warming down 5 min, and Nordic walking 50 min) two days per week for 12 weeks and general leisure group (n = 15), consisting of 60 min leisure program community center. The pre and post 12-week program, depression test, muscle strength (including grip test, and 30sec sit to stand), and balance (including Functional Reach test, and One Leg Standing test) were measured. A Mann-Whitney U test was used to compare within the group, and a Wilcoxon signed-rank test was used to compare between the groups. RESULTS: After 12 weeks, only the Nordic walking group showed significant improvement in depression, muscle strength, and balance (p < .05). In the general leisure group, however, the left grip strength and Functional Reach Test (FRT) showed a significant decrease. The Nordic walking program was better than the general leisure group, and a significant difference was observed in depression, muscle strength, and balance between the two groups (p < .05). CONCLUSION: Nordic walking was effective for the elderly with a high risk of depression. Therefore, Nordic walking may be an option for preventing elderly mental disorders and functional improvement.

• The Journal of Korean Physical Therapy
• /
• 제26권2호
• /
• pp.62-67
• /
• 2014

Purpose: The purpose of this study was to investigate tibialis anterior muscle fatigue through a Nordic walking when using pole. Methods: This study subject was 38 people who were twenties and randomly assigned to a control group with standard walking and Nordic walking group with Nordic walking. All subjects examined muscle fatigue with surface EMG and visual analogue scale for fatigue. The data were analyzed with SPSS window 18.0 program using ANCOVA. Results: The results were of a significant changes to the both tibialis anterior fatigue(p<0.01). The visual fatigue scales weren't significant difference. Conclusion: It was found that Dool-re-gil (Mt. Ji-Ri) was effective for muscle fatigue during walking, and it appears that it could be used clinically. So it is anticipated that improvement in clinical utilization for the people who's through a Nordic walking when using pole.

• 비교문화연구
• /
• 제45권
• /
• pp.433-478
• /
• 2016

이 논문은 국내에서 수년 전부터 유행하고 있는 북유럽디자인 소비에 대한 분석을 통해 한국 소비문화의 흐름에서 일본의 역할을 조명하는 연구이다. 비서구 국가 중 유일하게 선진 자본주의 국가의 대열에 합류했고 1980년대에는 미국과 경제력을 다투었던 일본이었지만 문화적 영향력에 대한 평가는 낮았다. 그런 일본이 1990년대 들어 대중문화상품으로 동아시아 지역에 어필하다가 대중문화 상품의 인기가 가라앉은 후에는 만화, 게임, 애니메이션 등 오타쿠계 서브컬쳐로 글로벌한 문화적 영향력을 행사하고 있다. 이 글에서는 1990년대부터 부상한 일본 문화의 영향력을 새로운 자포니즘으로 보고 한국의 북유럽 소비가 자포니즘의 매개와 주도 하에 진행되어 왔음을 제시한다. 일본이 구성한 북유럽에 대한 의미와 상징이 한국의 북유럽 소비에서 관철되고 있다는 의미이다. 의미와 스타일의 측면에서 일본의 슬로무비는 북유럽디자인에 미국발 '킨포크' 코드를 결합시켰다. 디자인의 측면에서는 아르누보를 매개로 일본 미학은 북유럽디자인과 시각적 유사성을 얻을 수 있었고 일본 가와이이 자카소품을 통해 북유럽디자인과 시각적 친숙함도 확보했다. 무엇보다 일본 잡화브랜드들이 출시한 북유럽풍 생활소품들을 통해 일상 속으로 북유럽디자인이 스며들었다. 또한 국내의 북유럽 소비는 일본 오타쿠들이 서브컬쳐를 포스트모던하게 소비하는 방식인 데이터베이스 소비방식으로 진행되고 있다. 일본이 만들어낸 북유럽에 대한 모에 요소가 한국에서도 북유럽 소비의 기호로 작동하고 있는 것이다.

• PNF and Movement
• /
• 제21권3호
• /
• pp.291-298
• /
• 2023

Purpose: This study aimed to suggest an effective exercise for treating anterior cruciate ligament (ACL) and hamstring injuries based on the dynamic control ratio (DCR) for the hamstring and quadriceps during eccentric hamstring exercises. Methods: Twenty-four healthy participants participated in this study. The participants performed three eccentric hamstring exercises, including the Nordic exercise, the supine leg curl, and single-leg deadlifts. During the eccentric hamstring exercises, the vastus medialis oblique (VMO), vastus lateralis (VL), biceps femoris (BF), and semitendinosus (ST) were measured using surface electromyography. Results: The DCR was significantly lower during the supine leg curl and single-leg deadlift than during the Nordic exercise (p < 0.05). The activity of the VMO and VL was significantly greater during the supine leg curl than during the Nordic exercise and the single-leg deadlift (p < 0.05). VL activity was significantly higher during the single-leg deadlift than during the Nordic exercise (p < 0.05). ST activity was significantly higher during the supine leg curl and Nordic exercise than during the single-leg deadlift (p < 0.05). BF activity was significantly higher during the supine leg curl than during the Nordic exercise and single-leg deadlift (p < 0.05). Finally, the BF showed significantly higher activity during the Nordic exercise compared to during the single-leg deadlift (p < 0.05). Conclusion: Based on the DCR ratio and quadriceps activity, the supine leg curl should be introduced early in rehabilitation for ACL injuries.

• 한국산학기술학회논문지
• /
• 제7권5호
• /
• pp.766-770
• /
• 2006

헬스클럽과 가정에서 사용되는 운동기구의 종류와 기능은 다양해지고 있으나 운동기구의 안전과 내구성에 대한 신뢰할 수 있는 자료는 부족한 실정으로서 이에 대한 연구 필요성이 절실히 요구되고 있다. 본 논문에서는 상호연동형 노르딕 기구에 작용하는 하중과 강도조절장치에 발생하는 인장하중이 노르딕 기구의 고유 진동수에 미치는 영향을 파악함으로써 진동 발생 요소를 제어하는데 목적이 있다.

• 국제초고층학회논문집
• /
• 제9권3호
• /
• pp.261-271
• /
• 2020

The 2020 National Building Code of Canada (NBC) and the 2021 International Building Code (IBC) both include Tall Wood Buildings (TWB) and are hailed as documents responsible for the proliferation of Mass Timber construction. Mass Timber construction is critical to reducing the carbon footprint of the construction industry; a sector acknowledged as being one of the greatest contributors of global annual CO₂ emissions. Origine, a 13-storey multi-residential building erected in 2017 in a previously unsuitable site, is currently the tallest all-wood building in North America. This article describes the challenges overcome by the designers and client as they engaged with code officials, building authorities, and fire-service representatives to demonstrate the life-safety performance of this innovative building. It also traces the development of the "Guide for Mass Timber Buildings of up to 12 Storeys" published in Quebec and how it has enabled other significant Tall Wood projects across North America.

• International Journal of Computer Science & Network Security
• /
• 제23권3호
• /
• pp.130-138
• /
• 2023

The Smart grids are considered as multi-disciplinary power systems where the communication networks are highly employed. This paper presents optimal wide area measurement system (WAMS) configuration in Nordic power system. The transition from SCADA to WAMS becomes now trend in all power systems to ensure higher reliability and data visibility. The optimization applied in this research considered the geographical regions of the Nordic power system. The research considered all the devices of WAMS namely phasor measurement units (PMUs), phasor data concentrators (PDCs) and communication links. The study also presents two scenarios for optimal WAMS namely base case and N-1 contingency as different operating conditions. The result of this research presents technical and financial results for WAMS configuration in a real power system. The optimization results are performed using MATLAB 2017a software application.

• 한국운동역학회지
• /
• 제21권3호
• /
• pp.383-390
• /
• 2011

In this study, 26 normal subjects were studied to compare the biomechanical Analysis of Lower Limbs on Speed of Nordic Walking. The biomechanical variables were determined by performing three-dimensional gait analysis, and the measurements items were spatial and temporal parameters; vertical ground reaction force; and moments of the hip, knee, and ankle joints. The purpose of this study based on the speed of Nordic Walking to the vertical ground reaction force and joint moments of each were analyzed. Nordic Walking with poles while being whether this weight is reduced to load, not the improvement of muscle activity by identify Nordic walking is to allow efficient. The results of the analysis were follows. The spatial parameters of step length, stride length significantly increased with increase in velocity(p<0.001). The temporal parameters of step time, stride time, the duration of double support use, and the duration of single support use also significantly decreased with increase in velocity(p<0.001), but cadence significantly increased(p<0.01). Analysis of the changes in ground reaction force revealed that vertical ground reaction force significantly increased at the initial contact and the terminal stance and decreased at the mid stance with increase in velocity(p<0.001). Moments of the hip and knee joints significantly in creased with increase in velocity whereas that of the ankle joint did not. Gait analysis revealed that weight-bearing decreased and moments of the hip and knee joints increased with increase in velocity(p<0.01). The results of this study may help people perform Nordic walking efficiently and Nordic walking can be used in the gait training of people with an abnormal gait.

• 한국의상디자인학회지
• /
• 제4권2호
• /
• pp.139-161
• /
• 2002

This study investigates the characteristics of Nordic sweaters works from a historical perspective. Specifically, this study deals with the following research topics: 1) development of Nordic sweaters, 2) the characteristics of Nordic sweaters industry according to the change of times, 3) the comparison of local knitting patterns, 4) the symbolic meaning of the designs in the Nordic sweaters and patterns. The results of the study are summarized as follows. 1. Knitted work developed mostly in Northern Europe, a cold area, and the barren, mountainous coastal areas where people frequently used woolen materials for clothes. It was also developed in Scandinavian regions which lead the fashion in modern days. Scandinavian knitting techniques have been diffused into the east coast of England and Northern Europe by Vikings. 2. Scandinavian countries are distinguished from other countries by their conservative but creative cultural tradition. Their knitting patterns are characterized by small geometric figures such as dots, triangles, squares, rhombuses, and crosses used often with stars and roses. Scandinavian knitting is also salient for its vertical stripes and simple motifs repeating at short intervals. 1) Norway ; Simple and geometric Norwegian patterns are classified into three groups of motifs: (a) the motifs of cross, diamond, X, and swastika (equation omitted). (b) the motifs of human figures, animals and birds, (c) floral motifs (especially eight-petal roses). Their use of color is also simple, and is limited to more than two colors. (2) Sweden ; Swedish patterns are colorful and geometric. They are characterized by features such as brocade, complex embroidery, and contrast of red and black colors. They also show Guernsey patterns. Initials and production years were knitted in sweaters which have different patterns in their trunks and sleeves. 3) Denmark ; The Danish pattern is the purl stitch knitted against the stockinette stitch. The technique is used to copy woven damask motifs. The patterns are seen most clearly when they are knit with smooth yarn. The Faeroe sweaters are the representative work of Danish knitting. Faeroe knitting, incorporates stranded pattern and is knit in the round, either with circular needles. 4) Finland ; Finnish patterns are similar to Norwegian patterns. Finnish knitted work show very colorful, variety and free-flowing geometric patterns. 5) Iceland ; Icelandic knitting shows original ribbon pattern. Lope sweater is the representative work. 3. The traditional knitting patterns not only carried symbolic meanings but also served as means of communication. First of all, patterns had incantatory meanings. Patterns were symbolic of one's social standing, too. The colors, motifs and their arrangements were very important features symbolizing one's social position or family line. People often communicated by certain pieces of knitted work or patterns. In short, the knitted work in the Nordic sweaters served the function of admiring the beauty of nature and symbolizing various meanings. The unique designs and colors of the knitted work reflected the characteristics of the culture those works belonged to. This study also turns our attention to the issue of how the traditional colors and designs of the knitted work can contribute to the development of modern designs, and by doing so, if makes us realize the importance of knitted works in modern society.