• Title/Summary/Keyword: wear training

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Quantitative Wear Training for the Improvement of Heat Tolerance in Summer (Part II) -Wear Training by Optimal Temperature Inside Clothing for Women in Their 20s- (여름철 내열성 증진을 위한 정량적 착의훈련의 효과 (제2보) -20대 여성의 의복내 온도를 지침으로-)

  • Lee, Hyo-Hyun;Choi, Jeong-Wha
    • Journal of the Korean Society of Clothing and Textiles
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    • v.36 no.4
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    • pp.371-381
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    • 2012
  • This study investigates quantitative wear training effects and involved 15 participants from a previous study (part 1) in May to September 2009. Before wear training, the subjects' rectal temperature, skin temperature, heart rate, blood pressure and local sweating were measured for 1 hour in a climate chamber ($39{\pm}1^{\circ}C$, $65{\pm}5%RH$, 0.3m/s) to evaluate heat tolerance. Subsequently, the subjects were divided into 3 groups that consisted of 5 participants. Group N (control-group) dressed the participants so that they felt comfortable (or cool). Group W and MW where participants underwent regular wear training for 10 weeks (5 days a week a total of 50 times). The intensity of the wear training for the participants of group MW was stronger than that for group W. A heat-tolerance experiment was performed after wear training. The results were as follows: 1. The participants of groups W and MW felt more comfortable after wear training than before wear training in the case of warmer $T_{cl}$. However, no significant differences were observed before and after wear training for group N. 2. The heat tolerance of the participants of groups W and MW was higher after wear training than before wear training. However, no significant difference was noted in this regard for group N. 3. The results showed the wear training effect (based on quantitative guidelines). The results show that the predicted optimal temperature inside clothing can enhance heat tolerance.

Effects of Wear Training for Improving Vascular Compliance on Blood Pressures and Blood Lipid Profiles in Prehypertensive Subjects (온열요법으로서의 착의훈련이 고혈압 전단계자의 혈압 및 혈중 지질성분에 미치는 영향)

  • Yoo, Shin-Jung;Park, Joon-Hee
    • Korean Journal of Human Ecology
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    • v.21 no.1
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    • pp.141-149
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    • 2012
  • This study investigates the effects of wear training on blood pressure and blood lipid profiles. For the purpose of this research, 'wear training' refers to the alternating stimulation of temperature while using specific clothing under controlled situations ($18.8{\pm}0.2^{\circ}C$, $38{\pm}3%RH$). The participants alternated between two different garments producing a $1.5^{\circ}C$ difference in the innerest microclimate temperature over a period of 4 weeks. The experiments in this study were conducted in a comfortable environment after sufficient rest. The results were as follows. The systolic blood pressure and mean arterial pressure were lower in the post test than in the pre test (p<.05). The atherogenic index (AI) was also reduced and the LDL-C/HDL-C ratio increased (p<.05) in the post test. These results demonstrated that wear training positively affected improvement in vascular stiffness.

Study on the Wearing Conditions of Weight Training Compression Wear for Men in their 20s (웨이트 트레이닝 활동을 위한 20대 남성 컴프레션웨어 착의 실태)

  • Kim, Mira;Kim, Dong-Eun;Choi, Hei Sun
    • Journal of the Korean Society of Clothing and Textiles
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    • v.40 no.5
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    • pp.775-787
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    • 2016
  • This study examined the wearing conditions of compression wear for weight training. Compression wear has recently received significant attention from the public and athletes as high-level functional sportswear. The survey was conducted on 373 men in their 20s for general information on purchase behavior, preferred brand, function, and preferred design. The majority of participants (n=181) were aware of the function of compression wear. The most selected reason for wearing compression wear was for its convenience during sports activities. Respondents had the greatest preference for designs with a round neckline, regular leggings type, upper arm-length sleeve, and thigh-length bottom. Respondents also wanted a stronger compression in the core muscle part (abdomen, back, and waist).

Effect on the Human Thermoregulation of Wear Training in Air Condition (여름철 냉방 조건에서의 착의 훈련이 인체의 체온 조절 반응에 미치는 효과)

  • Kim, Mi-Kyung;Choi, Jeong-Wha;Yeom, Hee-gyong
    • Journal of the Korean Society of Clothing and Textiles
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    • v.19 no.3
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    • pp.504-515
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    • 1995
  • This study was performed to investigate that wear training using thermal insulation with clothes has the effect on the human thermoregulatory response, especially on the heat tolerance. Twelve men and women in twenties wert divided into the control group, the training groups and each group except the control group had participated in wear training. The heat tolerance was assessed in all subjects who had participated in the experiment carried out in hot environment(40$\pm$1$^{\circ}C$, 50$\pm$5%RH) by such parameters as rectal temperature, skin temperature, systolic blood pressure, diastolic blond pressure, plume rate, total sweat volume, local sweat volume, subjective sensation, and the differences of heat tolerance in each group were compared. The results were as follows: In hot environment(4$0^{\circ}C$) the changing width of rectal temperature was decreased in the control and the heavy clothing group. Forehead and abdomen temperature in hot environment were significantly decreased after the training. Sweat rate was higher after the training than before. In all experimental groups, systolic and diastolic blood pries.;uses in hot environment(4$0^{\circ}C$) were significantly decreased after the training.

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Effect on the Subcutaneous Fat Thickness of the clothing Training in the Cold Condition (향한기의 표의훈련이 피하지방두께에 미치는 영향)

  • 박승순;이원자
    • Journal of the Korean Society of Clothing and Textiles
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    • v.23 no.4
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    • pp.551-562
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    • 1999
  • This study was intended to investigate the effect on the human body such as subcutaneous fat thickness the circumference of extremities etc. of the clothing training of putting on thin clothes periodically from the cold period. The subjects were divided into the clothing training group and the non-training group, The training group was asked to wear cool clothes in daily life and to wear the training clothes of T-shirts with half-length sleeves and pants and perform the clothing training for two hours daily three times a week in a cold environment over the period from November to February. The non-training group was asked to lead a life wearing comfortable clothes. Then a comparative experiment was conducted at 15$\pm$1$^{\circ}C$, 50$\pm$5% R, H and 0.25m/sec before and after the clothing training. After the clothing training regardless of gender subcutaneous fat thickness was more increased and total clothing weight per the surface area of the body was decreased in the training group than the non-training group. The training group showed lower skin temperature in the limbs and lower average skin temperature than the non-training group irrespective of gender which proved the effect of the clothing training. The training group was shown to have attendancy toward a greater sense of warmth and a less sense of discomfort which proved the effect of the clothing training.

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A Study on the Functional Design Process and Performance Evaluation of Army's Training Wear (군복의 기능성 향상을 위한 디자인 제시 및 평가에 관한 연구)

  • Kim Kyunghi;Kim Youngmi;Kim Haeyoung;Ahn Taeyeh;Lee Sungae;Choi Kyunghi;Hong Kyunghi;Hwang Soonyoung
    • Journal of the Korean Society of Clothing and Textiles
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    • v.14 no.2
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    • pp.104-116
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    • 1990
  • An example of functional army's training wear was developed with careful considerations given to the actual user. Three steps of a functional clothing design process were followed in the design procedure. First, information on the adequacy of the current army's training wear was collected by interviews with 192 persons. Second, the current design and construction of the training wear was altered to meet the user's need from the result of the interview. Third, the performance of the newly designed army's training wear was evaluated for their effectiveness in several aspects such as conditions of the microclimate within clothing, metabolic rate, garment pressure during arm movements and appearance during body motions.

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Neural Netwotk Analysis of Acoustic Emission Signals for Drill Wear Monitoring

  • Prasopchaichana, Kritsada;Kwon, Oh-Yang
    • Journal of the Korean Society for Nondestructive Testing
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    • v.28 no.3
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    • pp.254-262
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    • 2008
  • The objective of the proposed study is to produce a tool-condition monitoring (TCM) strategy that will lead to a more efficient and economical drilling tool usage. Drill-wear monitoring is an important attribute in the automatic cutting processes as it can help preventing damages of the tools and workpieces and optimizing the tool usage. This study presents the architectures of a multi-layer feed-forward neural network with back-propagation training algorithm for the monitoring of drill wear. The input features to the neural networks were extracted from the AE signals using the wavelet transform analysis. Training and testing were performed under a moderate range of cutting conditions in the dry drilling of steel plates. The results indicated that the extracted input features from AE signals to the supervised neural networks were effective for drill wear monitoring and the output of the neural networks could be utilized for the tool life management planning.

Sensor Fusion and Neural Network Analysis for Drill-Wear Monitoring (센서퓨젼 기반의 인공신경망을 이용한 드릴 마모 모니터링)

  • Prasopchaichana, Kritsada;Kwon, Oh-Yang
    • Transactions of the Korean Society of Machine Tool Engineers
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    • v.17 no.1
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    • pp.77-85
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    • 2008
  • The objective of the study is to construct a sensor fusion system for tool-condition monitoring (TCM) that will lead to a more efficient and economical drill usage. Drill-wear monitoring has an important attribute in the automatic machining processes as it can help preventing the damage of tools and workpieces, and optimizing the drill usage. In this study, we present the architectures of a multi-layer feed-forward neural network with Levenberg-Marquardt training algorithm based on sensor fusion for the monitoring of drill-wear condition. The input features to the neural networks were extracted from AE, vibration and current signals using the wavelet packet transform (WPT) analysis. Training and testing were performed at a moderate range of cutting conditions in the dry drilling of steel plates. The results show good performance in drill- wear monitoring by the proposed method of sensor fusion and neural network analysis.

A Study for the Improvement of the Nursery Active-wear Uniform -By Characters based on Children's Folklore Plays- (어린이집 활동복 개발 연구 -아동 민속놀이 캐릭터를 활용하여-)

  • Moon, Myeng Ok;Lee, Jin Suk;Um, Jung Ok
    • Fashion & Textile Research Journal
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    • v.15 no.3
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    • pp.347-357
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    • 2013
  • The nursery active-wear uniform designs of Internet shopping malls are simple and similar; however, the latest children's wear trends (mostly composed of training jumpers and pants) do not reflect these qualities. Children's folklore plays (widely used in child education) have an instructive value for the emotional and intellectual development of a child. Nursery active-wear uniform designs applied to children's folklore's plays could be positive for the emotional development and specialized cultural education of children. We designed three nursery active-wear uniforms with three different design concepts (casual, semi-formal and sporty) regardless of sex. The main color of the three nursery active-wear uniforms was yellow. We used three different chroma and values of yellow through three design concepts: Design I of a nursery active-wear uniform (a training suit style with a good activity), Design II of a nursery active-wear uniform (a semi suit style), and Design III of a nursery active-wear uniform (a sportswear style that reflected a sport wear trend). We expressed children's folklore plays in the pattern of a nursery active-wear uniform. The pattern was characterized as a pair of bears flying kites. This pattern was utilized in three nursery active-wear uniforms with the logo and name of the nursery. We modified the designs of active-wear nursery uniforms based on an evaluation of 33 special panels. We made three nursery active-wear uniforms for five-year olds.