• 유통과학연구
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• 제14권3호
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• pp.55-62
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• 2016

Purpose - Average using time of smart-phone for Korean people is 3 hours 39 minutes and most people who are using a computer at home and their workplace can be affected over force to neck and shoulder due to unstable body posture. musculoskeletal disorders which caused by unstable body posture can affect strongly to decrease work efficiency. So this research is designed to measure the effect of using computer & smart-phone on decreased work efficiency due to musculoskeletal disorders and mediating effect between decreased work efficiency and musculoskeletal disorders. Research Design, Data, and Methodology - The author has developed a questionnaire with 6 hypothesis on the basis of previous research result with 5 constructs. The questionnaires were also made by interview and E-mail. 300 copies of questionnaires were distributed and 282 questionnaire were used for the analysis as valid data responses. SPSS ver.21.0 were used and made Cronbach's α and reliability test, correlation, Baron & Kenny 3 step mediated regression analysis. Result - Cronbach's α shows 0.770~0.954 and C.R. is 0.963~0.997 which is higher than 0.7. and AVE was 0.867~0.933. So the data are all acceptable condition. Using for a long time of a computer & smart-phone has a positive effect on musculoskeletal disorders. This means, it can cause musculoskeletal disorders if people use a computer & smart-phone for a long time due to unstable body posture. And musculoskeletal disorders can effect strongly decrease work efficiency. This study also found out that a long time of using computer can cause musculoskeletal disorders rather than using smart-phone a long time. To check mediate effect of musculoskeletal disorders between using a computer & smart-phone and Decreased Work Efficiency, author used 3-step mediated regression analysis of Baron & Kenny (1986). Using a computer for a long time mediate partially and using a smart-phone for a long time mediate completely. This means that using a smart-phone a long time is not the actual reason to decrease work efficiency. But using level of smart-phone is increasing rapidly day by day. So we need to make additional research about this matter seriously. Conclusion - Nowadays, people can not live on without a computer & smart-phone even a moment. But, using a computer for a long time will affect to cause musculoskeletal disorders and it will effect strongly to decrease work efficiency. Before, we thought over that musculoskeletal disorders were diseases of elder people. But, we found out from this study that musculoskeletal disorders can be happen to any people, even children, or workers in heavy industry or engaged in brain work. So we need to be careful when we use a computer for a long time. People also need to be careful to keep correct body posture when using both a computer and smart-phone since a smart-phone became more popular and using time level became longer. Due to increased income and living standard of people, physical growth of young people is so rapid. But the physical environment of society is not suitable for them since it can not follow up the speed of growth. Suitable work table is very important to prevent musculoskeletal disorder which can affect decrease work efficiency. For a person, a society or country, increased productivity is very important since it can directly connected to the job satisfaction. Education and reeducation for the people is also important, but to teach them how to keep good condition of health will be more important since it can increase the quality of work efficiency and quality of life. Computer and Smart-phone is one the best invention of modern society, but it can cause mental and physical disease which can affect decrease work efficiency and productivity. So it is necessary to observe attentively for the situation continually.

• Journal of Nutrition and Health
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• 제47권2호
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• pp.145-156
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• 2014

본 연구에서는 영양 식생활 교육자료에 대한 인증 시스템을 개발하기 위하여 2011년 4월부터 10월에 걸쳐 연구를 진행하였다. 문헌고찰, 인터뷰, 자문회의 및 전문가 회의, 설문조사, 공청회 개최 등의 체계적인 연구 절차를 통해 타당성, 신뢰성, 적용가능성을 갖춘 인증 시스템을 개발하고자 하였다. 인증 시스템 개발을 위하여 보건복지부의 우수건강도서, 환경부의 우수환경도서, 교육과학기술부의 우수과학도서, 문화체육관광부의 우수학술도서 및 우수교양도서, 농림수산식품부의 농업교육프로그램, 대한의학회의 건강정보심의인증, 시각장애인연합회의 사용자웹접근성인증, 한국정보화진흥원의 웹접근성품질마크, 문화체육관광부의 데이터베이스품질인증 제도를 분석 참고하였다. 본 연구에서 개발된 영양 식생활 교육자료에 대한 인증 시스템은 제 3자에 의한 인증 시스템으로 운영되며, 이를 위해 인증 운영기관에 인증위원회가 구성되어 인증 전반에 대한 업무를 관장한다. 인증 심사 절차는 신청 및 접수, 자료 정리 및 분류, 1차 심사 (서면평가), 2차 심사 (전체회의), 결과통보의 순으로 진행한다. 인증 심사위원은 3인으로 구성하며, 총 인증 심사기간은 2개월로 하고, 상반기와 하반기로 년 2회 접수를 실시한다. 인증 심사 결과는 적합 또는 부적합으로 평가하며, 최종 인증을 받은 교육자료는 인증서 및 인증마크를 발급받고, 홈페이지, 보도자료 등을 통한 홍보 추진, 공동주관기관을 통한 판촉 및 홍보를 지원하도록 한다. 인증 유효기간은 웹사이트의 경우에만 2년으로 하며, 갱신심사로 기간을 연장할 수 있다. 이상에서 개발된 영양 식생활 교육자료에 대한 인증 제도는 정보에 대한 신뢰성을 높여 교육과 학습에 대한 만족도를 높여줄 것으로 기대된다.