• 제목/요약/키워드: Variance of Analysis

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Spatiotemporal Gait Parameters That Predict Gait Function Based on Timed Up and Go Test Performance in the Hemiplegic Stroke Patients

  • Kim, Jeong-Soo;Kim, Jeong-Ah;Jeon, Hye-Seon;Yu, Kyung-Hoon
    • Physical Therapy Korea
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    • v.20 no.4
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    • pp.40-46
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    • 2013
  • The purpose of this study was to determine which spatiotemporal gait parameters obtained during hemiplegic walking could be a predictive factor for the Timed Up and Go test (TUG). Two hundreds nine subjects who had suffered a stroke were recruited for this study. They were participated in two assessments; the TUG test and gait analysis. The relationship between the TUG test and spatiotemporal parameters was analyzed using Pearson's correlation coefficients. In addition, to predict the spatiotemporal gait parameters that correlated most with the TUG scores, we used multiple linear regression analyses (stepwise method). The results show that the normalized velocity was strongly correlated with the TUG performance (r=-.72, p<.001). Additionally, single support percentage (SSP), double support percentage (DSP), step time difference (STD), and step length difference (SLD) significantly were correlated with the TUG test. Normalized velocity, STD, DSP of affected side, and SSP of non-affected side explained 53%, 8%, 3%, 2%, of variance in the TUG test respectively. In conclusion, an increase in gait velocity and a decrease in STD would be effective indicators of improvement on the functional mobility in the stroke rehabilitation.

Correlates of Physical Activity among Korean Navy Personnel: An Ecological Approach (함정 근무 장병의 신체활동 관련 요인: 생태학적 접근)

  • Roh, Mi-Young;Lee, Hyeonkyeong;Lee, Chung-Yul;Kim, Gwang-Suk
    • Research in Community and Public Health Nursing
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    • v.23 no.3
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    • pp.296-306
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    • 2012
  • Purpose: This study was conducted to measure the relationships between ecological factors and Navy personnel's physical activity (PA) based on McLeroy's Ecological model. Methods: A cross-sectional survey was conducted with a convenience sample of 184 Navy personnel working in 10 Navyships. A self-reporting questionnaire consisted of measures of intrapersonal, interpersonal, organizational and community factors related to Navy personnel` s PA. Data were analyzed by descriptive statistics, $x^2$-test, t-test, analysis of variance, and hierarchical multiple regression using SPSS/WIN 17.0 programs. Results: Their mean PA level was $2,848.1{\pm}3,344.5$ MET-min/week, and mostly moderate level (50.5%). Hierarchical multiple regression analysis showed that religion, working department, working type, perceived health status and community environment were significant PA correlates. Conclusion: Community environmental factors as well as intrapersonal factors were significantly associated with Navy personnel's PA, indicating that community health nurses should expand an approach for individual-level behavioral change to incorporate Navy personnel specific community environmental barriers into PA interventions.

Effects of Health Information Media Use and Health Interest on Health Promoting Behaviors in Nursing Students (간호대학생의 건강정보 미디어 이용과 건강관심도가 건강증진행위에 미치는 영향)

  • Yang, Nam Young;Song, Min Sun
    • Journal of East-West Nursing Research
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    • v.25 no.2
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    • pp.147-156
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    • 2019
  • Purpose: The purpose of this study was to examine the health information media use, health interest, and health promoting behaviors of nursing college students, and the influence factors of health promoting behaviors. Methods: Participants were 144 nursing students in D city. Data collection was conducted from August 21st to 30th, 2019. Data were collected with structured questionnaires and analyzed using t-test, ANOVA, Pearson's correlation analysis, and multiple regression analysis. Results: There were positive correlations between the health information media use and health interest with health promoting behaviors. Factors affecting health promoting behaviors of nursing college students were grade, health information media use, and health interest, which explained 28.2% of the variance. Conclusion: Characteristics of nursing students should be taken into consideration to improve their abilities for screening of health and using correct health information. In addition, health promotion programs should be developed and implemented for increasing nursing students' health interests.

Statistical damage classification method based on wavelet packet analysis

  • Law, S.S.;Zhu, X.Q.;Tian, Y.J.;Li, X.Y.;Wu, S.Q.
    • Structural Engineering and Mechanics
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    • v.46 no.4
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    • pp.459-486
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    • 2013
  • A novel damage classification method based on wavelet packet transform and statistical analysis is developed in this study for structural health monitoring. The response signal of a structure under an impact load is normalized and then decomposed into wavelet packet components. Energies of these wavelet packet components are then calculated to obtain the energy distribution. Statistical similarity comparison based on an F-test is used to classify the structure from changes in the wavelet packet energy distribution. A statistical indicator is developed to describe the damage extent of the structure. This approach is applied to the test results from simply supported reinforced concrete beams in the laboratory. Cases with single and two damages are created from static loading, and accelerations of the structure from under impact loads are analyzed. Results show that the method can be used with no reference baseline measurement and model for the damage monitoring and assessment of the structure with alarms at a specified significance level.

Evaluating knowledge, attitudes and health behavior regarding cancer among college students based on 10 national cancer prevention recommendations (일 지역 대학생의 암에 대한 지식, 태도 및 국민 암 예방 10대 수칙 건강행위)

  • Lee, Young-Ah
    • The Korean Journal of Emergency Medical Services
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    • v.23 no.2
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    • pp.125-138
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    • 2019
  • Purpose: This study aimed to assess college students' knowledge, attitude, and health behavior regarding cancer based on 10 national cancer prevention recommendations and to examine the relation between these variables. Methods: The participants were 189 college students in J city. Data were collected with a questionnaire consisting of items on cancer-related knowledge, attitude toward cancer, and implementation of 10 national recommendations on cancer. The data were analyzed using independent two-sample t-test, one-way analysis of variance, $Scheff{\acute{e}}$ multiple comparison test, Pearson's correlation coefficients, and multiple regression(stepwise) analysis with SPSS/WIN 21.0 program (IBM, Armonk, NY, USA). Results: The mean scores for knowledge, attitude, and health behavior were 23.83 points (out of a possible 32), 33.10 points (out of possible 50), respectively. Attitude was positively correlated with health behavior and accounted for 37.7% of cancer prevention health behavior. Conclusion: The findings of this study suggest that the related factors should be considered in the development and implementation of systemic education programs that can encourage and promote cancer prevention health behavior among college students.

A Study on the Prediction Model of Unmanned Helicopter Fuel Consumption for the Captive Flight Test (탑재비행시험을 위한 무인헬기 연료 소모량 예측모형 연구)

  • Kim, Jisu
    • The Journal of the Korea Contents Association
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    • v.19 no.7
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    • pp.436-443
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    • 2019
  • The purpose of this paper is to establish a predictive model by analyzing the influence and correlation of factors affecting the fuel consumption of unmanned helicopters in Captive Flight Test. In this study, a four-factor two-level full factorial experiment was designed and tested using the design of experiments, results were analyzed to derive the main effects and interactions of the factors, and the predictive model was established through regression analysis. It is expected that the results from this study contribute to carrying out Captive Flight Test efficiently and the improvement of the test capability of Electronic Testing Range.

For the Success of Smart Product Bundling: Complementarity Level and Advertising Strategy

  • LEE, Juyon
    • The Journal of Economics, Marketing and Management
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    • v.10 no.1
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    • pp.27-37
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    • 2022
  • Purpose: This study investigates how to successfully promote the smart product bundle by exploring (1) how consumers' adoption intention toward a smart product bundle differs by the complementarity level of the bundled items and (2) how the ad appeal type influences the effect of complementarity level on adoption intention via goal fluency. Research design, data and methodology: This study was a 2 (complementarity level: low vs. high) × 2 (ad appeal type: attribute vs. benefit) between-subjects experiment. The proposed hypotheses were verified using analysis of variance (ANOVA) and bootstrap analysis using PROCESS. Results: This research demonstrated that adoption intention toward smart products increases when the complementarity level of bundled smart items is high. Goal fluency underlies this relationship. Further, attribute versus benefit appeal type moderates the relationship between the complementarity level and goal fluency. Conclusions: Compared with the attribute appeal, benefit appeal leads to higher goal fluency when the complementarity level of the bundled items is low. However, there was no differential impact of appeal type on goal fluency when the complementarity level of bundled items is high. Finally, goal fluency mediated the interaction of complementarity level × ad appeal type on adoption intention.

Effect of a restaurant hygienic grade certificate program on consumer choices

  • Kim, Jae-il;Choi, Jinkyung
    • Nutrition Research and Practice
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    • v.15 no.sup1
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    • pp.70-78
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    • 2021
  • BACKGROUND/OBJECTIVES: The recent coronavirus disease 2019 pandemic has brought to light issues regarding personal and environmental cleanliness. Individuals may have concerns about cleanliness at food service establishments when they consume food prepared at a restaurant. In Korea, a new restaurant hygienic certificate system was implemented in 2017. The effect of this new system has not been evaluated. SUBJECTS/METHODS: This study investigated consumers' perceptions of these new certificates using the protection motivation theory (PMT). An online survey was conducted to collect data and then exploratory factor analysis, analysis of variance, and multiple regression tests were run. RESULTS: The results of this study indicate that 3 different certificates had significant differences in threat (P < 0.001) and benefit (P < 0.001) perception. However, experience with a foodborne illness from a restaurant did not effect on the PMT variables. In addition, the 3-tier certificate did not motivate consumers to protect themselves against foodborne illnesses, while previous experiences of foodborne illness (P < 0.05), coping (P < 0.001), and benefits (P < 0.01) affected this protection motivation. CONCLUSIONS: This study suggests that consumers were not influenced by different certificate levels regarding their motivation to protect themselves from foodborne illnesses. Therefore, an improved plan should be initiated to clarify the meaning of these certificates. The results of this study can help the application and development of a new system for future adaptations.

Effects of Depression, Social Support of Tuberculosis Patients on Self-care

  • Lee, Go Un;Lee, Hye Kyung
    • Research in Community and Public Health Nursing
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    • v.33 no.4
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    • pp.456-464
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    • 2022
  • Purpose: The purpose of this study was by understanding the correlation between the depression, social support and self-care of tuberculosis patients and by identifying the factors that influence the self-care. Methods: The study subjects were 119 outpatients who were diagnosed with pulmonary and respiratory tuberculosis at a university hospital in D city. The survey questions measured depression, social support, self-care. Using the SPSS/WIN 23.0 program, the collected data were analyzed using descriptive statistics, t-test, ANOVA, Pearson's correlations and multiple regression analysis. Results: As a result of correlation analysis, there was a statistically significant negative correlation between self-care and depression (r=-.53, p<.001), and there was a significant positive correlation between self-care and social support (r=.68, p<.001). Factors affecting self-care of the subjects were social support (β=.51, p<.001), depression (β=-.32, p<.001), drug discontinuation experience (β=-.30, p<.001) and drug resistance (β=-.14, p<.001). These factors explained 62% of the variance. Conclusion: In order to improve the self-care ability of tuberculosis patients, it is necessary to develop education and nursing intervention programs that can lower patients' depression and strengthen social support.

Factors Influencing Liquidity Creation among Commercial Banks in Uzbekistan: An Empirical Study

  • OMONOV, Akrom A.;MUHAMMAD, Kamaruzzaman;GHANI, Erlane K.
    • The Journal of Asian Finance, Economics and Business
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    • v.10 no.1
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    • pp.1-8
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    • 2023
  • The banking industry regulators have imposed on commercial banks to maintain a certain level of liquidity to ensure that they can meet their obligations to the depositors and third parties. This study examines the factors influencing liquidity creation among commercial banks in Uzbekistan. Specifically, this study examines three internal factors namely, risk assets, deposits, and inter-bank loans on the creation of liquidity in commercial banks of Uzbekistan. This study uses content analysis on financial reports of 33 commercial banks in Uzbekistan over 21 years. This study shows all the factors chosen in this study significantly influence liquidity creation among the commercial banks in Uzbekistan. While deposits and inter-bank loans significantly and positively influence liquidity creation, this study shows that risk assets significantly and negatively influence liquidity creation. Further analysis shows that these three factors contribute to a 92.4% variance in liquidity creation among commercial banks in Uzbekistan. The findings of this study provide valuable insights to the stakeholders in the banking industry on the factors influencing liquidity creation in banks. In addition, this study adds to the existing literature by providing insight into the internal factors' role in influencing liquidity creation in the context of an emerging economy.