• Title/Summary/Keyword: Variance of Analysis

Search Result 6,248, Processing Time 0.036 seconds

A Study on Kinematic Analysis of Trunk and Lower Extremities in Stance Phase of Walking according to Turning Direction (보행 방향 전환 시 입각기 하지 및 체간의 운동형상학적 분석)

  • Oh, Tae-Young
    • The Journal of Korean Physical Therapy
    • /
    • v.25 no.2
    • /
    • pp.88-95
    • /
    • 2013
  • Purpose: The purpose of this study was to conduct an analysis of kinematics of lower extremities and trunk in stance phase of walking according to turning direction. Methods: Ten university students (five male, five female) who were in their 20s (mean age was 20.6 years old) participated in this study. Participants did not have participants did not have any problem with skeletal muscular system. We used the "Qualisys motion capture system" for analysis of trunk and lower extremity movement in stance phase of walking according to turning direction. We collected data while subjects walked a distance of 10 m, and at the 6 m line, subjects were required to turn to the left side and the right leg was positioned in stance phase and the left leg was positioned in swing. For data analysis, the SPSS for Windows ver. 20.0 statistics program was used in performance of one way analysis of variance according to turning direction. Results: Significant difference of trunk and lower extremities was observed for turning direction according to walking cycle (p<0.05). Upper trunk movement showed a greater increase at three dimensions than lower trunk, and in heel off phase, pelvic movement showed a greater increase than lower trunk (p<0.05). In 45 degree and 90 degrees of turning direction, all movements of trunk and lower extremities were significantly different among three events of stance phase (p<0.05). Conclusion: We suggest that three-dimensional movement analysis of trunk and lower extremities during turning movement was very important in order to indicate increasing balance or walking ability for people with impaired movement or walking.

A Study on Foot Shape of Women (성인 여성의 발 형태 분석에 관한 연구)

  • 서추연;석은영
    • Journal of the Korean Home Economics Association
    • /
    • v.41 no.6
    • /
    • pp.1-12
    • /
    • 2003
  • The purpose of this study were to analyze the anthropometric data of feet of Korean women with aging, to categorize the women's foot shapes, and to compare the shoe size according to the foot shapes in order to provide the basic information for more comfortable shoes. Subjects of this study were 181 women over age 20. They were measured with the direct measurement method and the indirect measurement method. 26 items were measured from the right foot and 6 items were taken on foot outline. Factor analysis, cluster analysis, analysis of variance, post-hoc test, and cross tabs were peformed for statistical analysis of the data by SPSS program. There were significant differences in height items, breadth items, girth items, and angle items by subjects' age. The older subjects' feet were wide and thick with big deformity on toes. The arch height of the older ones was low. This implicates that the degree of deformity on toes, the foot ratio, the foot girth, the foot breath and the arch height as well as the foot length are needed to be considered in developing comfortable shoes. Nine foot construction factors were extracted by the factor analysis of anthropometric measurements; foot size factor, heel and instep factor, malleolus lateralis factor, malleolus medialis factor, foot shape factor, shape of toes factor, heel height factor, big toe height factor, and internal factor. On the basis of the cluster analysis, three different foot shapes were categorized. Type 1 was large and wide foot with little deformity on little toe. Type 2 was medium foot with deformation of big toe, and with the lowest arch height. Type 3 was small and narrow foot with the highest arch height. Distribution of shoe size according to the foot shape was analyzed. The ball of foot breath was of wide distribution than the ball of foot girth. This implicates that girth items and breath items of the foot should be enclosed for the same foot length in the shoe sizing system.

Post-Occupancy Evaluation of Housing Environments of Jangyou New Town in Gimhae (장유신도시 주거환경에 대한 거주 후 평가)

  • Oh, Chan-Ohk;Yang, Se-Hwa
    • Journal of the Korean housing association
    • /
    • v.22 no.5
    • /
    • pp.59-69
    • /
    • 2011
  • The purpose of the study was to perform the post-occupancy evaluation of housing environments of Jangyou New Town in Gimhae. The data for the analysis was collected through questionnaire survey method from August 10 to 27, 2010, and the sample consisted of 524 respondents living in apartment complexes in Jangyou. The features of housing environment were categorized into unit housing, apartment complex, and neighborhood and total 28 specific items were included in the evaluation. The data were analyzed using descriptive statistics and analysis of variance with Duncan's multiple range tests. The results were as follows: 1) Overall evaluation of housing environment of the residents in Jangyou were relatively high, expecially in floor plan layout of unit housing, self-expression through apartment complex, and natural environment of neighborhood. 2) The demographic and housing variables that had significant influences on the post-occupancy evaluation were age of the respondent, monthly income, apartment size and tenure type of apartment. Respondents who were over sixty years old, with monthly income of less than 2,000,000 won, or living in public rental apartments were more likely to evaluate overall housing environment positively than rest of the respondents.

Application of Taguchi method in optimization of process parameters of ODS tungsten heavy alloys

  • Sayed, Mohamed A.;Dawood, Osama M.;Elsayed, Ayman H.;Daoush, Walid R.
    • Advances in materials Research
    • /
    • v.6 no.1
    • /
    • pp.79-91
    • /
    • 2017
  • In the present work, a design of experiment (DOE) technique using Taguchi method, has been applied to optimize the properties of ODS tungsten heavy alloys(WHAs). In this work Taguchi method involves nine experiments groups for four processing parameters (compaction pressure, sintering temperature, binding material type, and oxide type) with three levels was implemented. The signal-to-noise (S/N) ratio and analysis of variance (ANOVA) were employed to obtain the optimal process parameter levels and to analyze the effect of these parameters on density, electrical conductivity, hardness and compressive strength values. The results showed that all the chosen factors have significant effects on all properties of ODS tungsten heavy alloys samples. The density, electrical conductivity and hardness increases with the increase in sintering temperature. The analysis of the verification experiments for the physical properties (density and Electrical conductivity) has shown that Taguchi parameter design can successfully verify the optimal parameters, where the difference between the predicted and the verified values of relative density and electrical conductivity is about 1.01% and 1.15% respectively.

Development and Evaluation of an Integrative Palliative Care Scale for Cancer Patients (암환자를 위한 통합적 완화 돌봄 측정도구 개발 및 평가)

  • Jo, Kae Hwa;Park, Ae Ran;Choi, Su Jung;Yoo, Eun Young
    • The Journal of Korean Academic Society of Nursing Education
    • /
    • v.23 no.2
    • /
    • pp.165-174
    • /
    • 2017
  • Purpose: This study was done to develop and to evaluate an integrative palliative care scale for cancer patients. Methods: The process included construction of a conceptual framework, generation of initial items, verification of content validity, selection of secondary items, preliminary study, and extraction of final items. The participants were 173 cancer patients in Daegu and Gyeongbuk. Item analysis, factor analysis, criterion related validity, and internal consistency were used to analyze the data. Results: Eighteen items were selected for the final scale, and categorized into 3 factors explaining 58.3% of total variance. The factors were labeled as social/environmental palliative care (9 items), psychological palliative care (4 items), and physical palliative care (3 items), and spiritually palliative care (2 items). The scores for the scale were significantly correlated with the quality of life of cancer patients. Cronbach's alpha coefficient for the 18 items was .88. Conclusion: The above findings indicate that the integrative palliative care scale has good validity and reliability when used for cancer patients.

Factors Influencing Quality of Life in Patients with Hepatocellular Carcinoma Receiving Transarterial Chemoembolization (간동맥 화학색전술을 받은 간세포암 환자의 삶의 질 영향요인)

  • Park, Hyoung-Sook;Lee, Hyun-Ju;Ha, Jae-Hyun
    • Journal of Korean Academy of Fundamentals of Nursing
    • /
    • v.22 no.1
    • /
    • pp.69-78
    • /
    • 2015
  • Purpose: The purpose of this study was to examine the relationship among family support, self-care and quality of life(QOL) in Patients with hepatocellular carcinoma receiving transarterial chemoembolization, including the effects of these variables on QOL. Methods: The research was a cross-sectional, descriptive design. Participants were 103 patients with hepatocellular carcinoma who were receiving transarterial chemoembolization. Data were analyzed using descriptive statistics, t-test, one way ANOVA, and hierachial multiple regression analysis with SPSS 18.0 program. Results: QOL had a significant correlation with family support(r=.60, p<.001) and self-care(r=.38, p<.001). Family support had a significant correlation with self-care(r=.41, p<.001). Hierarchial multiple regression analysis for QOL revealed that the most powerful predictor was family support followed by self-care. Family support, self-care, gender, and occupation explained 50% of the variance in quality of life. Conclusion: These results indicate that various factors are related to the quality of life of these patients. Further, nursing strategies to improve the family support and self-care of patients with hepatocellular carcinoma are needed.

Development of Measurement of Stress for Female Marriage Immigrants in Korea (여성결혼이민자의 스트레스 측정도구 개발)

  • Park, Min Hee;Yang, Sook Ja
    • Journal of Korean Public Health Nursing
    • /
    • v.26 no.3
    • /
    • pp.518-531
    • /
    • 2012
  • Purpose: This study was conducted in order to develop and test a measurement for assessment of stress of female marriage immigrants in Korea. Methods: Forty four preliminary items were initially developed based on literature review and focus group interviews. Those items were evaluated by experts for content validity, resulting in six factors and 26 items. The 26 items were translated into Chinese, Vietnamese, and English by professional translators and were reviewed by native speakers of each language who are fluent in Korean. For testing validity and reliability, data were collected from 323 female marriage immigrants residing in five regions in Korea. Results: As a result of item analysis, 25 items were selected. Factor analysis yielded 21 items in four factors, including 1) household economic 2) parenting and discrimination 3) cultural and 4) emotional stressors, explaining 61.3% of the total variance of stress of female marriage immigrants in Korea. The Cronbach's alpha reliability coefficient was .903 for the overall instrument and .692-.892 for four factors. Conclusion: Measurement of stress for female marriage immigrants in Korea has high validity and reliability. Therefore, this measurement may be utilized for systematic assessment of stress and for identification of areas of support for female marriage immigrants in Korea.

A Study of Professor and College Students' Consciousness about a Fashion Internship (패션 인턴십에 대한 교수 및 학생의 의식 연구)

  • Yu Ji-Hun
    • Journal of the Korean Society of Costume
    • /
    • v.55 no.8 s.99
    • /
    • pp.30-47
    • /
    • 2005
  • The purposes of this study were to analyze the consciousness of the professors and college students about the fashion industry internship and to provide basis data which were to develop an internship program of the fashion company and university and to activate it. The whole country were classified as Seoul and Gyeonggi division, Gangwon division, Chungchung division, Yeongnam division, and Honam division for this study. As object of the questionnaire, the professors of 50 universities and 132 college students from every division were selected by stratified cluster sampling. The investigation tool for this study was composed of 95 items for two kinds of professor's and two kinds of college student's survey. The question results were analyzed by frequency analysis and variance analysis, t- test and f- test by spss 10.0. The contents of research result were as follows : First, it arranged the opinions of the college students and professors about the internship experience and execution reason, the internship application methods and execution contents, the type of preference company and worked company, the company education contents, internship evaluation and postmortem. It also proposed the roles of the academic world, fashion industry circles and government for the internship activation.

Development of a Questionnaire to Measure Family Stress among Married Working Women (가족스트레스 측정 도구 개발 - 기혼 여성근로자를 대상으로 -)

  • Kim Gwang-Suk;Cho Won-Jung
    • Journal of Korean Academy of Nursing
    • /
    • v.36 no.5
    • /
    • pp.761-769
    • /
    • 2006
  • Purpose: Even though a number of studies have suggested that appropriate measuring instruments of family stress for working women have to be developed, the validity and reliability of the instruments used have not been consistently examined. The purpose of the present study was to develop a sensitive instrument to measure family stress for married working women, and to test the validity and reliability of the instrument. Method: The items generated for this instrument were drawn from a comprehensive literature review Twenty four items were developed through evaluation by 10 experts and twenty one items were finally confirmed through item analysis. Psychometric testing was preformed and confirmed with a convenient sample of 240 women employed in the industrial sector. Result: Four factors evolved by factor analysis, which explained 50.5% of the total variance. The first factor 'Cooperation' explained 28.1%, 2nd factor 'Satisfaction with relationships' 10.6%, 3rd factor 'Democratic and comfortable environment' 6.3%, and 4th factor 'Disturbance of own living' 5.5%, Cronbach's coefficient of this instrument was 0.86. Conclusion: The study supports the validity and reliability of the instrument.

Development of an Instrument to Measure the Quality of Care through Patients' Eyes for Hospitalized Child (입원한 아동에게 제공되는 환자의 눈을 통한 간호의 질 측정도구 개발)

  • Cho, Haeryun;Oh, Jina;Jung, Dukyoo
    • Child Health Nursing Research
    • /
    • v.21 no.2
    • /
    • pp.131-140
    • /
    • 2015
  • Purpose: The purpose of this study was to develop an instrument that evaluated QUality Of care Through patients' Eyes for hospitalized child (QUOTE-Child), and examine the validity and reliability. Methods: Preliminary items were reviewed through expert content validity and face validity. To test the validity and reliability of the instrument, the data were collected from 221 care givers of hospitalized children. Data were analyzed using exploratory factor analysis, Pearson correlation coefficient, Cronbach's alpha and Spearman-Brown coefficient. Results: Factor analysis yielded 19 items in four factors including 1) respect, 2) explanation, 3) kindness, and 4) skillfulness, with a cumulative explanatory variance of 70.68%. For criterion-related validity, a significant positive relationship was found between quality of care and pediatric family satisfaction. For internal consistency reliability, the Cronbach's ${\alpha}$ was .93 (importance) and .95 (performance) for the overall instrument. The half split reliabilities were .86, .95 (importance) and .92, .97 (performance). The Cronbach's ${\alpha}$ of 110 data was .92 (importance) and .94 (performance). Conclusion: Researchers and practitioners can use this instrument to systematically assess quality of care for hospitalized children and identify areas of support for hospitalized children and their family.