• 제목/요약/키워드: paired comparison

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레크리에이션 복합운동이 노인의 신체조성, 체력 및 우울에 미치는 효과 (Effects of Recreation Combined Exercise Program in Body Composition, Physical Fitness and Depression in Elderly)

  • 송민선
    • Journal of Korean Biological Nursing Science
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    • 제12권3호
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    • pp.157-165
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    • 2010
  • Purpose: The purpose of this study was to examine the effects of recreation combined exercise program on body composition, physical fitness and depression in elderly women in rural district over a three-month follow-up period. Methods: Recreation combined exercise program (RCEP) was composed of resistance exercise, walking and recreation activity twice a week. The subjects were 52 divided in to experimental group (n=28) and control group (n=24). Arm curl, chair stand, 2 min step test, back scratch, chair sit and reach were measured as pre- or post-test data. Also, Depression was expressed using geriatric depression scale as pre- or post-test data. $X^2$ test, paired t-test and t-test were performed using SAS program. Results: Arm curl (p=.023), 2 minute step test (p<.001), back scratch (p=.004) and chair sit and reach (p=.024) showed the significant difference in the comparison between groups. Depression showed the significant difference in the comparison between groups (p=.008). Conclusion: These findings indicated the RCEP has positive influence upon increasing the physical fitness and improving the depression level. In conclusion, the regular RCEP will contribute to the improving physical and psychologic aspect in elderly women over the long period.

The Effect of a Kettlebell Complex Program according to the Support Surface on Lower Extremity Muscle Activity and Balance in Baseball Players

  • Dae-Han Kang;Yong-Nam Kim
    • The Journal of Korean Physical Therapy
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    • 제34권6호
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    • pp.312-316
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    • 2022
  • Purpose: The purpose of this study was to investigate the effect of a kettlebell complex program according to the support surface on the lower extremity muscle activity and balance of baseball players. Methods: The participants were divided into two groups; unstable support surface group 1 (11 people) performed the kettlebell complex program on an unstable support surface, and stable support surface group 2 (10 people) performed the kettlebell complex program on a stable support surface. Muscle activity was measured by surface electromyography. Dynamic balance was measured with a balance-measuring equipment. A paired t-test was used to compare groups before and after the experiment. An independent t-test was performed to determine the difference in the degree of change between the two groups before and after the experiment. Results: The intragroup comparison between stable support surface group 1 and 2 showed significant differences in muscle activity and sense of balance. In the comparison between the groups, the difference in muscle activity in unstable support surface group1 was significant in the biceps femoris and rectus femoris muscles, and significant differences were also found in the sense of balance. Conclusion: These results suggest that a kettlebell exercise on an unstable support surface is more effective in improving muscle activity and sense of balance than a kettlebell exercise on a stable support surface.

실내조명환경의 시각적 쾌적성 확보 및 조명부하 저감을 위한 채광제어방법에 관한 연구 (A Study on Daylight Control Method for Securing Visual Comfort and Reducing Lighting Loads on Interior Lighting Environment)

  • 한상필
    • 한국태양에너지학회 논문집
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    • 제32권6호
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    • pp.100-105
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    • 2012
  • In previous study, to investigate the impression of the compound lighting based on the AC-Model at the full-size room, the impressions of various compound lighting were completed as compared with that of the uniform lightings through the comparison method (a paired comparison) by Semantic Differential scaling. Also, we examined the effect of the supplementary lighting type increasing the lights at the side of the window and the blind-control lighting type, and they were compared with the existing compound lighting type. In results, pared comparison of the compound lighting and the uniform lighting, indicates that the impression of the compound lighting is generally similar to that of the uniform lighting when there are same ratios of the light from the window. Based on these results, we suggest that the AC-Model might be applied to various conditions. And we also introduce the method for daylighting that it is possible to reduce discomfort glare and to improve visual impressions as the supplementary type and blind-control type on the compound lighting. And it was found that electric power consumption of the compound lighting room was lower than that of the uniform lighting room when as same lighting ratio of the compound lighting and the uniform lighting from the window was provided or there was the lighting distribution simulated to same light ratio from the window. Since the method of the ACModel was described in the experimental condition, additional studies should be performed to determine if this model could be applied to different window configurations, lighting layout and types of a room.

Comparison Task-Oriented Training according to the Applicable Blocked Practice and Random Practice: Chronic Hemiplegic Patients

  • Lee, Nam-Yung;Kim, Suhn-Yeop;Song, Hyun-Seung
    • The Journal of Korean Physical Therapy
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    • 제27권4호
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    • pp.240-245
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    • 2015
  • Purpose: The purpose of this study was to compare the blocked practice and random practice of task-oriented training in patients with chronic stroke to determine the effect of lower extremity muscle activity and balance ability. Methods: The thirty participants were randomly assigned to either the block practice group (BP) group or the random practice group (RP) and received the training three times per week, 30 minutes per day, for six weeks. Surface electromyography was used for measurement of lower extremity muscle activity. Static balance was to measured the stability index (SI) and weight distribution index (WDI) using the Tetrax. The four square step test (FSST) was used to measure dynamic balance. The paired t-test was used for determination of differences before and after intervention, and the independent t-test was used for determination of differences between groups. Results: Lower extremity muscle activity, RA and GCM was improved in the RP group after intervention and between groups. TA was significantly improved in the RP group compared with the BP group. In comparison of before and after interventions, SI was reduced in BP and RP. WDI in OS was reduced in comparison of BP and RP before and after intervention. CS was reduced in BP and RP. The OS and CS was improved in RP compared with BP. In comparison of before and after intervention, FSST was improved in BP and RP. Conclusion: Task-oriented training methods using random practice was found to be effective in promoting lower extremity muscle activity and balance ability in chronic stroke patients.

여자 청소년의 사회불안 감소를 위한 인지행동집단치료 프로그램의 개발과 효과 - 2년 추후연구 - (The Effects of a Cognitive-Behavioral Group Therapy Program for Social Anxiety in Female Adolescents)

  • 김정민
    • 가정과삶의질연구
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    • 제26권2호
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    • pp.13-24
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    • 2008
  • The aim of the present study was to develop a cognitive-behavioral group therapy program for social anxiety in Korean adolescents and to examine its efficacy through pre-, post- and 2-year follow-up tests. The program included cognitive restructuring, exposure training and social skills training. KSAS-A and SASC-R were administered to 588 1st grade middle-school female students to assess their social anxiety levels. On the basis of double criteria procedure(top 10% scores on both scales), 59 students were selected initially. Individuals currently receiving clinical treatment were excluded. Finally, 40 students were selected and randomly assigned to either a treatment group or a wait-list control group. The program consisted of 12 weekly sessions, approximately 1.5-2 hours in duration. Whereas pre- and post-tests were administered to both groups, follow-up tests were administered to the treatment group only. The collected data were statistically analyzed through independent t-test and paired t-test. The results of the study were as follows: 1) At post-test students in the treatment group showed a very significant reduction in social anxiety and fear of negative evaluation by others in comparison with those in the wait-list group. 2) At post-test students in the treatment group showed a significant reduction in negative automatic thoughts in comparison with those in the wait-list group. 3) At post-test students in the treatment group showed a significant improvement in overall social skills in comparison with those in the wait-list group. 4) At post-test students in the wait-list group showed a significant increase in both social anxiety and negative automatic thoughts in comparison with those in the treatment group. 5) At 3-month, 1-year and 2-year follow-ups, the program's effectiveness was maintained.

주택에서의 각 생활행위에 대응하는 조명환경에 관한 실험연구 (An Experiment on Lighting Environment for some Behavior in Housing)

  • 이선영
    • 한국주거학회논문집
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    • 제16권4호
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    • pp.65-71
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    • 2005
  • The present study performed subjective evaluation experiments using slides and scale down models in order to propose guidelines for lighting environment desirable for each behavior in the house. The evaluation measure was composed of 20 mood items and 15 behavior items. As for experiment methods, the slide experiment used SD method, and the scale down model experiment used Scheffe's paired comparison. The results of this study are as follows. 1) Desirable lighting environment for working and talking is active atmosphere. 2) Lighting environment desirable far relaxation is to heighten lighting contrast using candescent lamps and local lights. In other words, active atmosphere, which is desirable for working and talking, is not desirable for relaxation. 3) Lighting for working requires bright illuminance and high color temperature(6000k). 4) Lighting for relaxation requires somewhat low brightness regardless of color temperature. If the light is bright it is better to use lamps of low color temperature. 5) for conversation, bright illuminance is more desirable than dark one, and the most adequate color temperature is 4000K.

건설경기동향조사와 건설기업경기실사지수의 비교연구 (A Comparison of Construction Cycle Trend Survey and Construction Business Survey Index)

  • 이동윤;강고운;이웅균;조훈희;강경인
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2015년도 추계 학술논문 발표대회
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    • pp.192-193
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    • 2015
  • Construction Cycle Trend Survey, which survey total value of orders and realized amounts monthly, is a valuable statistics that used to quick grasp or forecast the trend of domestic construction business. In recent periodical survey quality diagnoses, few professional users named a problem that Construction Cycle Trend Survey could not get together with the current state of the construction industry. This study examined weather Construction Cycle Trend Survey reflects the economic sentiment of construction business or not. Paired t test was performed between Construction Cycle Trend Survey and Construction Business Survey Index (CBSI), and significant differences were verified.

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시각적 질의 계량적 측정기법에 관한 연구 : SBE 기법의 일반화 (A Study on the Quantitative Measurement of Perceived Visual Quality : Test of the SBE Method)

  • 임승빈
    • 한국조경학회지
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    • 제15권2호
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    • pp.91-100
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    • 1987
  • Main purpose of this study is to test the usefulness of the SBE method in measuring ‘complexity’‘beauty’and ‘friendliness’other than ‘preference’. The study results are as follows. 1) The SBE results are as reliable and valid in measuring ‘complexity’‘beauty’and ‘friendliness’as in measuring ‘preference’. However, the degree of reliability and convergent validity can vary according to the inherent charateristics of those abstract quality themselves. 2) The correlation coefficients among the result of rating, SBE, frequency, and paired comparison methods are very high. 3) The perceived beauty of urban residential landscape reaches highest at the higher complexity level than that of the rural residential landscape.

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A Cross-cultural study of Body Image Perceptions between Korean and British University Students

  • Kim, Bu-Yong;Lee, Seunghee
    • 패션비즈니스
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    • 제19권6호
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    • pp.14-27
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    • 2015
  • This study explores the comparison of body image, body satisfaction, and clothing behaviors between Korean and British young women. Body image was measured by two methods: visual and verbal. For the data analysis, the Statistical Package for Social Science (SPSS) Version 16.0 for Windows was used to provide descriptive statistics, an independent sample t-test, and paired sample t- tests were applied in this study. Our results show that Korean and British female college students perceived ideal-body images that were smaller than their self defined body images. The ideal and self-images were significantly different in both groups. Both groups were dissatisfied with their own body size. The study was limited to a small sample size. Future studies using more participants from a more diverse age group and ethnic groups are recommended. The study will help marketers and retailers develop new products and new markets aimed at Korean and British women related to body image and body satisfaction.

소비자 감성 평가를 통한 에어컨 음질 평가 (The sound quality evaluation of an air-conditioner based on consumer sensory evaluation)

  • 김휘중;이진경;이제원;조성진
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2007년도 추계학술대회논문집
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    • pp.630-633
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    • 2007
  • This paper proposes method to find the subjective satisfaction index of an air-conditioner using consumer's sensory evaluation for an air-conditioner. A satisfaction index of an air-conditioner is presented the annoyance and freshness as ${\alphs}$, ${\beta}$ exponents of 1/f slope and is changed the annoyance and freshness as exponents of 1/f slope are changed. The satisfaction index of an air-conditioner is not improved if SPL is above the proper level although the 1/f slope has optimal ${\alpha}$, ${\beta}$ values. Therefore, this paper proposes the satisfaction index of an air-conditioner considered both SPL and ${\alpha}$, ${\beta}$ exponents of 1/f slope.

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