• Title/Summary/Keyword: Wearing effect

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Body Measurement Changes and Prediction Models for Flight Pilots in Dynamic Postures (자세에 따른 부위별 체표길이 변화량 분석 및 예측모형 개발 -공군 전투조종사를 대상으로-)

  • Lee, Ah Lam;Nam, Yun Ja;Chen, Lin
    • Journal of the Korean Society of Clothing and Textiles
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    • v.44 no.1
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    • pp.84-95
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    • 2020
  • Wearing ease is a critical factor when designing special uniforms such as flight pilot's garment and should reflect occupational properties for better performance. This study measured skin surface on 31 areas in seven postures that refer to the pilot's occupational postures as well as made six prediction models including linear mixed model (LMM) for each body part to find the best fit model. Skin surface measured from 3D body scanned images of 11 male pilot participants. There were significantly positive and negative changes in various areas from standing posture (P1) to dynamic postures (P2-P7). Six models were designed in various compositions using stature and chest circumference as fixed effects and subject and posture as random effects. The best models were linear mixed models with one fixed effect (chest circumference or stature, varies with body parts) and two random effects (subject and posture). The results of this study provide reference data to set wearing ease for pilot's garment and suggests a new methodology in this research area, but verifying the effect of diverse independent variables is left for future studies.

The effect of unstable plate on the ankle joint displacement and dynamic balance ability of female college students wearing high-heeled shoes (불안정 판을 이용한 훈련이 높은 굽 신발을 신은 여자 대학생의 발목관절 변위와 동적균형능력에 미치는 영향)

  • Nam, Taek-Gill;Lee, Ji-Hyun
    • Journal of Convergence for Information Technology
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    • v.7 no.5
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    • pp.31-38
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    • 2017
  • The purpose of this study was to investigate the effect of training using unstable plate on displacement and dynamic balance ability of ankle joints in women college students wearing high heel shoes. Subjects were randomly divided into experimental group and control group. 3D motion analysis was performed while walking 9cm high-heeled shoes and walking 5m. Dynamic balanced ability evaluation was performed. The intervention program was administered to experimental subjects three times a week for four weeks. They performed balance training using unstable plates. There was no intervention in the control group. The results showed that the displacement of the ankle joints in the experimental group after the intervention was decreased overall and the dynamic balance ability was significantly increased. The control group showed little change. As a result, the training using unstable plate stabilizes the ankle joints and improves the dynamic balance ability of the subjects wearing high-heeled shoes.

Effect of Walking with Combat Boots on the Muscle Tone and Stiffness of Lower Extremity

  • Wang, Joongsan;Park, Sieun;Kim, Jeongja
    • Journal of International Academy of Physical Therapy Research
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    • v.11 no.4
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    • pp.2221-2228
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    • 2020
  • Background: Shoes cover the feet and ankle joints and come into contact with the ground directly during walking, and the shape of shoes is related to the muscle tone of the lower extremity muscles. However, no study has been conducted on the muscle tone of the lower extremity after wearing combat boots. Objectives: To compare and analyze the effects of walking in combat boots and in athletic shoes on muscle tone and stiffness, to identifying the effect of the characteristics of shoes on the muscle tone. Design: Randomized controlled trial. Methods: Thirty subjects were randomly divided into a combat boots group and an athletic shoes group, and interventions were implemented. Both groups walked for 30 minutes on a treadmill at 4.2 km/h. MyotonPRO was used to measure the muscle tone and stiffness of the lower extremity. The measuring sites were set to five muscles on both legs. Results: In the combat boots group, muscle tone and stiffness of the medial gastrocnemius on the dominant side, the muscle tone and stiffness of rectus femoris, and the muscle stiffness of hamstring on the non-dominant side significantly decreased after walking. In the athletic shoes group, there was no significant change in the muscle tone and stiffness. Conclusion: The results of this study can be used to inform the wearing combat boots while walking on a treadmill reduces the muscle tone and stiffness of the lower extremity compared to athletic shoes. It indicates that the restriction of joint movement occurring when wearing combat boots influences reducing muscle tone and stiffness.

The influence of wearing helmet and cervical spine injury in skiers and snowboarders (스키와 스노우 보드에서 헬멧의 착용이 경추부 손상에 미치는 영향)

  • Kim, Sung Hun;Kim, Tae Kyun;Chun, Keun Churl;Hwang, Jae Sun
    • Journal of Korean Orthopaedic Sports Medicine
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    • v.10 no.2
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    • pp.94-99
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    • 2011
  • Purpose: As the number of people enjoying skiing and snowboarding which are two popular winter sports has been increasing, wearing helmet during doing these sports has been needed for safety. The rates of head or face injury have decreased after using helmet. However the effect that wearing helmet has on cervical damage is not yet to be known. So through this research we intend to be helpful in developing effective program and safety equipment. Materials and Methods: During two seasons from December 2009 to march 2011, cased 658 cervical injuries within 14538 admittance in medical center of major resort due to skiing and snow-boarding injuries. For survey and research model, one year before the research year conducted a pilot study. Admittance were 432 male and 226 female, advanced 273 and 385 novice. We divided them into two groups depending on wearing helmet, measured cervical damage ratio and injury mechanism, and researched the severity of damage and diagnosed injury. Each group used SPSS 12.0 (SPSS Inc., Chicago, IL, USA) to process data statistically. Results: The number of patients was 312 in skier and 346 in snow boarder. Patients wearing helmet were 146 in skier and 127 in snow boarder. Classification of each injuries were confirmed as 292 cases of simple sprain, 359 bruising, 6 cervical fractures and 1 case of dislocation. Classification of injury mechanisms were 287 of human collision, 212 material collision, 108 of slip down by oneself, 39 of falling and 12 cases of etc. In cases wearing helmet ski 78/ snow board 70 were simple sprain, ski 64/ snowboard 68 were shown as bruising, ski 1/ snow board 2 had cervical fracture or dislocation. The ratio of cervical sprain increased in cases of wearing helmet compared to non-wearing cases and there was a statistical significance (p<0.001). The ratio of cervical contusion increased significantly in non-wearing helmet user (p<0.05). However, there was no significant increase in fracture and dislocation compared between helmet user and non-user (p> 0.05). Conclusion: In this study, wearing helmet had no relation to additional cervical injury occurrence or severity among skiers and snow boarders. The ratio of cervical sprain increased significantly in helmet user with person to person accident. However, the cervical contusion decreased. On this ground, further biomechanical studies are required and modified helmet will be necessary.

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Research on warmth-keeping, anti-bacteria and deodorant treatment for feet, the active organ of human body (행동기관으로서 발의 보온 및 항균방취에 대한 연구)

  • 한상덕;이상도;정중희
    • Journal of the Ergonomics Society of Korea
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    • v.6 no.1
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    • pp.41-44
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    • 1987
  • Researches were made on foot-warming, anti-bacteria and deodorant treatment. Feet, the very important organ to human body, perspire much and their temperature is lower than those of other parts. Hence, keeping feet warm, sanitary and deodorant is the area of this study. Latex sponge of activated carbon, impregnated open cell foam, treated with Vikol DZ-anti-bacteria finishing agent, was developed and tested for warmth-keeping by KSK 0560 test method and for sanitization by AATCC 90 HALO test method and for deodorization by wearing tests. The results show that the new developed latex spongee has warmth-keeping ratio of 2.5 times higher than that of the conventional spong and it has an excellent anti-bacteria effect. Actual wearing function tests also show that it improves significantly the performance of deodorization, sanitization, warmth-keeping and bulkiness.

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Temporomandibular joint yinyang balance treatment improves cervical spine alignment in pain patients, a medical imaging study (통증환자에서 턱관절 경락음양 균형치료의 경추정렬 개선효과)

  • Yin, Chang-Shik;Lee, Young-Jun;Lee, Young-Jin
    • Korean Journal of Acupuncture
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    • v.24 no.4
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    • pp.37-45
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    • 2007
  • Objectives : Temporomandibular joint (TMJ) balance is known to be intricately integrated with nervous system, cervical spine, and meridian system balance. This retrospective study with one-group pretest-posttest design reviewed cervical spine imaging data to provide evidence of spinal alignment improving effect of TMJ balance treatment. Methods : Cervical spine imaging data including computed tomography and simple x-ray of 25 cases with painful condition were reviewed to explore any change in cervical alignment on wearing the intraoral device for TMJ balance treatment of functional cerebrospinal therapy. Results : Cervical spine alignment significantly improved on wearing the intraoral device. Conclusions : TMJ balance treatment improves cervical spinal alignment, which may be a firm basis to proceed with further research of TMJ balance therapy as a way of balancing the whole-body meridian system.

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A Study on the Costume of Japanese 天壽國曼茶羅繡帳 (tianshouguomancharaxiuzhang) (일본 天壽國曼茶羅繡帳 복장에 관한 연구)

  • 김미자
    • Journal of the Korean Home Economics Association
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    • v.36 no.2
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    • pp.61-76
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    • 1998
  • This is a result of the comparative study for the dress and ornaments of Cheonsuguk Mandara Sujang(天壽國曼茶羅繡帳, a folding screen of Japan in the 7th century) with that of the era of the Three Kingdoms of the ancient Korea. The style of dress, and a way of wearing dress and ornaments for female and male appeared in Cheonsuguk Mandara Sujang were same as that of the era of the Three Kingdoms of the ancient Korea. The formula of wearing dress in a two-pieces were also identical with that of Korean. Many Japanese scholars also do not deny that the dress and ornaments of Cheonsuguk Mandara Sujang were affected by that of Korean peninsula which had an important effect on cultural and ethnic customs fo Japan. Therefore, it is concluded that the dresses in Cheonsuguk Mandara Sujang are Korean clothes which was imparted to Japanese by Korean lived in the era of the Three Kingdoms.

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Case Report : Treatment of Disc Displacement without Reduction Patient Using ARS (전방재위치 교합장치를 이용한 비정복성 관절원판변위 환자의 치험례)

  • 진상배;홍정표
    • Journal of Oral Medicine and Pain
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    • v.23 no.3
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    • pp.277-280
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    • 1998
  • The treatment of anterior disc displacement without reduction patients needs speicific treatment methods different from other Craniomandibular Disorders. Those are manual manipulation, anterior repositioning splint; ARS and step-back. It is well known that the use of Anterior Repositioning Splint is effective on relief of TMJ symptom. But the side effect of long- term ARS wearing, which is irreversible posterior open bite induction, has made many clinicians avoid ARS treatment. This report introduces a clinical case recently proven part- time wearing ARS method for treatment of Disc Displacement without reduction patient' that can reduce side effects with good efficacy. But now clinical statistical studies and basical histophysiological studies are more needed.

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Development of the Basic brassiere pattern - focusing on 75A - (브래지어 원형 설계 - 75A를 중심으로-)

  • Park, You-Shin;Jang, Eun-Young
    • Journal of Fashion Business
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    • v.12 no.1
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    • pp.109-119
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    • 2008
  • The purpose of this study is to dvelop the basic pattern of wome which are fitting for 75A. The collected data were statistcally processed usig the SPSS 10.0 for Mans Standard Deiation, Cronbach's $\alpha$, etc. This study suggested a size chart for body measurement for constructing basic brssiere patterns with size of 75A. The construction of this experimental brassiere were lower cup, upper cup, front panel and wing and characterized by a round cup wired as well as a full cup embrcing the entire breasts. The drafting method for constructing basic brassiere patterns for 75A was completed by selecting a total of 11subjects, and two wearing tests were carried out with the subjects. the dimensions and shapes of the basic brassiere pattern suggested in this research proved to be fitting and to have a wearing effect that brings together and supports the breasts.

A Study on the Seatbelt Use and Influence Factors among Firefighters (소방공무원 안전벨트 착용률과 영향요인에 관한 연구)

  • Baek, In-hwan
    • Journal of the Korea Safety Management & Science
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    • v.23 no.1
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    • pp.49-56
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    • 2021
  • The purpose of this study is to investigate the current status of firefighting seatbelt use and factors affecting the wearing seatbelt of firefighters. The seatbelt use of citizens was also studied for comparative study. Two T-tests were conducted to confirm the characteristics of firefighters' safety belts wearing firefighters. As a result, there was a statistically significant difference, on seatbelt use in general vehicles, between firefighters and citizens. And a significant difference between fire vehicles and general vehicles, on firefighters' seatbelt use, and the average was lower in fire vehicles. Factor analysis, reliability analysis, correlation analysis and multiple regression analysis were conducted to 10 influential factors affecting seatbelt use of firefighters'. And factor analysis and reliability analysis revealed two major factors (Physical factors, Learning factors). In multiple regression analysis, it was confirmed the two independent factors had a positive effect on the dependent variable, the rate of seatbelt use of firefighters'.