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RISS 인기검색어
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- 저자 : 南貞淑(Jung-Sook Nam) (검색결과 3 건)
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정적 서기와 쪼그려 앉았다 서기 동작에서 고령자남녀의 자세 동요 비교
金智源(Ji-Won Kim),金多慧(Da-Hye Kim),文基旭(Ki-Wook Moon),嚴光文(Gwang-Moon Eom),南貞淑(Jung-Sook Nam),金耀翰(Yo-Han Kim),洪廷和(Jeong-Hwa Hong),朴炳奎(Bung-Kyu Park) 대한전기학회 2008 전기학회논문지 Vol.57 No.11
In this paper, COP (center of pressure) during quiet standing and squat-and-stand movement was analyzed to compare the postural control of young and elderly subjects with special interest in the elderly females who were reported to have higher fall rate than the elderly males. Subjects include the young subjects (10 males: 21.8±2.6yrs, 10 females: 20.4±0.3yrs) and the elderly subjects (8 males: 75.5±4yrs, 8 females: 72.3±3.5yrs). Analysis parameters were the mean of the distance between the instantaneous COP and the average COP (COP distance) and the mean of the COP movement velocity (COP velocity) in both AP (anterio-posterior) and ML (medio-lateral) directions. During quiet standing, the COP distance in ML direction of elderly females was significantly greater than that of elderly males and the COP velocity of elderly females in both ML and AP direction were significantly greater than those of all the other groups. During squat-and-stand movement, the COP distance of elderly females was not significantly different with that of the elderly males. However, the COP velocity of elderly females was significantly greater than that of all the other groups. The large lateral weight shift (COP distance) of elderly females during quiet standing may explain their greater fall rate. However, this does not apply to squat-and-stand movement. In contrast, COP velocity results show that the elderly females' COP is rapidly trembling compared to that of elderly males during both quiet standing and squat-and-stand movement. This results suggest that rapid trembling or postural sway may reflect the reduced postural control ability and the risk of falling.
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고령자 남녀와 20대 남녀에 있어서 다양한 등속수축중 최대 모멘트의 비교
金智源(Ji-Won Kim),金相佑(Sang-Woo Kim),文基旭(Ki-Wook Moon),嚴光文(Gwang-Moon Eom),李泳揆(Young-Gyu Lee),南貞淑(Jung-Sook Nam),朴寬龍(Kwan-Yong Park),金耀翰(Yo-Han Kim),洪廷和(Jeong-Hwa Hong),朴炳奎(Bung-Kyu Park) 대한전기학회 2008 전기학회논문지 Vol.57 No.10
In this paper, we investigated the maximum ankle joint plantarflexion moment (MPM) of young and elderly subjects during various modes of isokinetic contractions with special interest in the elderly females who were reported to have higher fall rate than the elderly males. Subjects include the young subjects (14 males: 22.7±2.5yrs, 13 females: 20.5±1.3yrs) and the elderly subjects (17 males: 65.8±10.5yrs, 26 females: 71.4±5.2yrs). The MPM was normalized by each subject's body weight. The MPM of elderly females was the weakest among the groups, particularly, at the eccentric contractions. The male-to-female ratio of MPM was greater in the elderly than in the young and the young-to-elderly ratio of MPM was greater in female than in male, both during the eccentric contractions. The result suggests that the decreased muscle force per body weight, especially at the eccentric contraction, may be one reason for the more frequent fall of the elderly female than the elderly male.
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신용카드 이용에 대한 소비자의 인식과 구매행동변화에 관한 연구 : 신용카드 이용자를 중심으로
남정숙,계선자 숙명여자대학교 생활과학연구소 1990 生活科學硏究誌 Vol.4 No.-
Since there is advancing mass consumption age with higher rate in modern society the credit system has been increased. Conforming to this trend, the credit card, so-called "the third currency", showed up as one of the new purchase media in connection with the change of the living style, consumption pattern and purchasing behavior. The purpose of this study is to help the consumers to have more rational cognition and contribute to the purchasing behavior. Thus, this study was attempted to investigate the relationship between the consumers cognition of credit card system and their changing rate of the purchasing behavior. Research questions of this study are as follows: 1. Do the cognition of the card user show any significant differences on the credit card system, according to the socio-economic and demographic variables? 2. Do the general purchasing behavior of credit card user show any significant differences, according to the socio-economic and demographic variables? 3. Does the change of the purchasing behavior show any differences, according to the socio-economic the demographic and the item variables? 4. What are the realtionships between the users' cognition of credit card system and their changing rate of the purchasing behavior? For the purpose of this study, questionnaires were distributed to men and women who live in Seoul and possess any credit cards. The 372 data obtained were analyzed by frequency, percentage, χ²-test, F-test, Pearson's correlation and Duncan's multiple range test. The major findings of this study are summerized as follows. 1. There are significant differences among the user groups the cognition for the credit card system, according to socio-economic and demographic variables. The groups with the higher level of cognition tended to be men with younger age. 2. There are significant differences among the user groups in the general purchasing behavior, according to the socio-economic and demographic variables. The groups with longer experiences in credit card usage tended to be men, younger age, higher income level, and married. 3. There are significant differences among the user group in their changing rate of the purchasing behavior, according to the socio-economic and demographic and item variables. The groups with more changing behavior for the purchase tended to be women, in lower level of education, in lower position of occupation especially when they buy more expensive items. 4. There are significant relationships between the cognition of the user for credit card system and their changing rate of the purchasing behavior. The groups with higher level of cognition of the credit card system tended to show more changing rate of the purchasing behavior. Based on the above findings, the higher the level of cognition of credit card system, the higher the degree of changing rate of the purchasing behavior tended to be. Therefore it is recommended for us to develop many programs that help more consumers to better understand the credit card system. It is also suggested that there should be more studies which will direct the consumers specifically to have the rational usage of credit cards as well as stabilization of the credit society.
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