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온열 교대 자극을 통한 착의 훈련이 고혈압 전단계자의 내한성에 미치는 영향
최정화(Jeongwha Choi),박준희(Joonhee Park) 한국생활환경학회 2011 한국생활환경학회지 Vol.18 No.4
This study was conducted to investigate the effects of wear training as a thermal alternation stimulus therapy on cold tolerance. Four male subjects with prehypertension participated in the investigation. Wear training in this study means that subjects wear alternately and repeatedly light clothing as the cool stimulus (mean temperature inside clothing: 30.13 ± 1.0℃) and heavy clothing as the warm stimulus (temperature inside clothing: 31.65 ± 1.0℃) in the cool environment during 4 weeks. Cold tolerance tests were conducted in a climatic chamber of 15.0 ± 0.5℃ and 25 ± 3%RH at the before and after wear training. Systolic/diastolic blood pressures and heart rates were decreased in post-test than those in pre-test. Pulse transit time and change of energy expenditure were increased in post-test than those in pretest. These results suggest that weal training by thermal alternation stimulation positively affected the cold tolerance of the participants.
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유아기 자녀를 둔 어머니의 아동권리 인식이 자녀의 행복감에 미치는 영향
최정화(Junghwa Choi),김정화(Jeongwha Kim) 한국보육지원학회 2021 한국보육지원학회지 Vol.17 No.6
Objective: This study is to confirm the effect of mothers perception of children s rights on the happiness of infants under the UN Convention on the Rights of the Child. Methods: This study was conducted on 383 mothers with children aged 3 to 5 attending daycare centers in Jeollanam-do, South Korea. Results: First, the difference in perception of children s rights according to the mother s general background did not show a significant difference in the mother s perception of children s rights, and the child s sense of happiness showed a statistically significant difference in the mother s education and child s gender. Second, there was a positive correlation between the mother s perception of child rights and the child s sense of happiness. Third, the effect of mothers perception of child rights on children s happiness was significant, and in the sub-factors, it was found that the perception of participation rights had a significant effect on children s happiness. Conclusion/Implications: In this study, it was confirmed that mothers perception of children s rights is important in promoting the happiness of early childhood children. Through this study, we would like to raise the need for parental education based on education on children s rights for mothers awareness and practice of children s rights.
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내한성 증진을 위한 착의훈련이 쾌적 의복기후 및 주관적 감각에 미치는 영향
박준희(JoonHee Park),최정화(Jeongwha Choi) 한국생활환경학회 2010 한국생활환경학회지 Vol.17 No.3
This study was performed on humans to investigate the effects of wear training for developing cold tolerance on comfort zone of microclimate and subjective sensations. Twenty male subjects participated in the investigation and they were subdivided into two groups consisted of each 10 participant: experimental group (EG) and control group (CG). EG dressed lightly to feel little cool or cold that is, temperature inside clothing of them was lowered than before wear training, but CG dressed as usual to feel comfortable during wear training of 4 weeks. Clothing microclimate and subjective sensations were measured during life time and subjective sensations in a cold environment was measured for evaluating cold tolerance. The results were as follows. EG during wear training maintained lower temperature inside clothing in day time and sleep than before wear training, respectively 1.7℃ and 0.8℃. Total clothing weight and total clothing number of EG during wear training were 547.2±136 g/㎡ and 3.43±0.6, respectively. EG felt more comfortable at low temperature inside clothing during than before wear training (p<.01). Also, EG felt less cold, less uncomfortable and more tolerable after than before wear training when it was exposed in the same cold environment (p<.01). In conclusion, through these results, it can be seen that wear training, the way of lowering the temperature inside clothing by 1.7℃ during 4 weeks in a cold season, positively affected cold tolerance.
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無風安靜時의 婦人用韓服의 保溫力에 관한 硏究 : 銅製人體模型에 의한 實驗 by the Instrumented Copper Mannequin on Standing-posture
崔正和 한국의류학회 1977 한국의류학회지 Vol.1 No.1
The insulating values of 7 kinds of woman's Korean-styled clothes were examined on the instrumented copper mannequin standing upright under still air condition in a climatic chamber at 20℃ and 60% R.H.. Results obtained are as follows: 1) High correlation coefficients were found in both between total insulating values of clothing (IT) and total clothing weight, and between IT and total clothing thickness while no significant difference was found between total clothing weight and total clothing thickness. 2) It seems possible to predict the approximate insulating value of woman's Korean styled clothes on still air condition by the total clothing weight.
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김경수,최정화 대한가정학회 2004 Family and Environment Research Vol.42 No.1
To protect farmers from solar radiation and UV, the movable sunshade tent was designed and its protection efficiency was measured in the artificial chamber and outdoors. Sunshade tent and the existing farmer's hat were examined. The results were as followers; Heart rate, total body weight loss and temperature of clothing microclimate on the chest and the back were lower in using sunshade tent than those in wearing existing hat in two experiments. In subjective sensation, subjects answered to feel significantly hotter and more uncomfortable in wearing existing hat in two experiments. Rectal temperature was significantly lower using the sunshade hat in experiment at outdoors(p<0.00l).
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