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  • 제목/요약/키워드: Lifting Work

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Association Between Occupational Standing Time and Metabolic Syndrome in Korean Male Workers (근로자의 서서하는 작업시간과 대사증후군의 관련성)

  • Kim, Ki-Woong
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • 제24권3호
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    • pp.383-392
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    • 2014
  • Purpose: In this study, we sought to understand the risk factor for chronic disease of workers by studying the association between occupational standing time and metabolic syndrome(MetS) in full-time 300 male workers. Materials: Data on age, life habit, work related information of the subjects were surveyed using self-reported questionnaire and interview. MetS was identified based on the report of Alberti et al.(2009). As for the data analysis, SPSS 19.0 was used to conduct the descriptive statistic, ANOVA, Pearson correlation coefficient and multiple logistic regression analysis. Results: Daily working hour affects on the lifting heavy objects, running and strenuous exercise(r=-0.137, p<0.01), and total physical function decreased with the increase in age(r=-0.145, p<0.01). Also, obese was significantly associated with genuflection and bend over(r=-0.110, p<0.05). On multiple logistic regression analysis for the diagnostic indices of MetS, occupational standing time were significantly associated with waist circumference(odds ratio=0.885, β value=-0.122, 95% CI=0.797-0.983, p<0.05) and triglyceride (odds ratio=0.873, β value=-0.136, 95% CI=0.800-0.953, p<0.01). Conclusions: These results suggest that the working posture may be important risk factor in pathogenesis and growing of MetS and cardiovascular disease.

Preliminary Standard Procedure for Face Lift and Correction of Nasolabial Fold using Thread-Embedding (Maeseon) of Korean Medicine (안면거상 및 팔자주름 개선을 위한 매선 시술 표준안 제안)

  • LeeL, Jae-Chul;Park, Sun-Hee;Yoon, Jeong-Ho;Kim, Jung-Won;Lim, Chang-Gyu
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • 제26권4호
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    • pp.43-50
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    • 2013
  • Objectives : This study aims to suggest preliminary standard procedure for face lift and correction of nasolabial folds using thread-embedding (Maeseon) of Korean medicine(KM). Methods : Three KM practitioners of facial correction and rejuvenation who have over hundred case of practice participated in establishment of standard procedure. Standard procedure contains preprocessing, main procedure for correction, and solution of side effects. Results : Standard procedure is comprised of twelve processes with preprocessing and postprocessing. Preprocessing has position, disinfection, and anesthesia. Main process consists of overall structure correction, face lifting, nasolabial folds correction, and mesh making on cheek. Postprocess covers disinfection, edema prevention. Conclusions : To our knowledge, this is the first work to suggest standard procedure of facial rejuvenation using Maeseon. It would contribute to standardized practice in clinical fields and future study of revealing Maeseon's effectiveness.

Effect of Workload on Musculoskeletal Degeneration

  • Kim, Youngki;Kim, Jongeun;Kang, Dongmug;Park, Soohong
    • Journal of the Ergonomics Society of Korea
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    • 제33권6호
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    • pp.465-475
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    • 2014
  • Objective: The aim of this study is to investigate the effect of workload on musculoskeletal degeneration. Background: It is important that workers maintain a health body for a long time as a measure of aging workers. In order do so, it is necessary to find out if workload can effect on musculoskeletal degeneration. Method: Epidemiological studies on workload or occupation and disc degeneration, osteoarthritis of knee were identified through database and bibliography searches. Results: Epidemiological studies showed that workload certainly effect on musculoskeletal degeneration. But we couldn't know which of individual factors and occupational factors further contribute to the musculoskeletal degeneration. And we could find that studies on workload and genetic factors were very few. In addition, there was also very few studies that it was possible interaction between individual factors as obesity and occupational factors as heavy manual lifting. Conclusion: Our reviews suggest that it need to conduct study between workload and genetic factors for musculoskeletal degeneration. This further study can identify attributable risk of workload for musculoskeletal degeneration, and contribute to the measure of aging workers. Application: This paper can help to establish research plan for the measure of aging workers.

Reliability and Validity of the Neck Disability Index in Neck Pain Patients (경통 환자 평가를 위한 Neck Disability Index의 신뢰도와 타당도)

  • Lee, Eun-Woo;Shin, Won-Seob;Jung, Kyoung-Sim;Chung, Yi-Jung
    • Physical Therapy Korea
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    • 제14권3호
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    • pp.97-106
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    • 2007
  • The purpose of this study was to determine reliability and validity of the Neck Disability Index (NDI) now in use for the first time in neck pain patients of Korea. Fifty subjects (26 males and24 female) with neck pain enrolled in the study. They completed a standardized self-administered questionnaire that include pain intensity, personal care, lifting, reading, headaches, concentration, work, driving, sleeping and recreation. Reliability was determined by intra-class correlation coefficient (ICC) and Cronbach's alpha by internal consistency. Validity was examined by correlating the NDI scores to the Visual Analog Scale (VAS) score. The Test-retest reliability of the translated versions of the NDI was good ICC (2,1) = .90 (95%CI .85 .95). Cronbach's alpha value for NDI was found to be .95 and this was statistically significant (p<.05). The criterion-related validity coefficients was .72 (p<.01). We conclude that the Korean version of NDI has shown to be a reliable and valid instrument for the assessment of neck pain.

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Study on Design of Heavy Payload Robot Considering Design Factor of Gravity Compensator (중력보상장치 설계계수를 고려한 고가반 로봇설계에 관한 연구)

  • Lee, Do-Seung;Lee, Ho-Su;Pyo, Sang-Hun;Yoon, Jung-Won;Lyu, Sung-Ki
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • 제18권5호
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    • pp.23-28
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    • 2019
  • In recent years, medium- to large-scale transportation machinery and machine tool manufacturing process lines have shown a trend toward centralization, softening, lightening, and slimming to reduce costs and increase productivity. This has increased the demand for vertical articulated robots. When developing and introducing a heavy weight-handling robot that can be easily applied to existing production lines, it is expected to have a great effect in securing industrial competitiveness by solving industrial issues such as the decreased productivity and increased risk of accidents due to work involving heavy lifting. In this study, we design a 6-axis robot mechanism with a heavy load-handling capacity of 700kg or more for large-sized materials of various types supplied in small quantities.

A Manifestation of Accounting Conservatism: A Case Study in Malaysia

  • ASON, Yvonne Joseph;BUJANG, Imbarine;JIDWIN, Agnes Paulus;SAID, Jamaliah
    • The Journal of Asian Finance, Economics and Business
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    • 제8권2호
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    • pp.365-371
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    • 2021
  • In the wake of several high-profile corporate accounting scandals, there has been evidence that companies are more eager to hire Chief Executive Officers (CEOs) with an accounting background. This signals that CEOs with an accounting background are recognized and trusted by the corporate world to boost the quality of financial reporting of a company. If it is so, in the context of combating the earnings management, hiring CEOs with an accounting background (being a conservative accounting practitioner), could become one of the effective internal corporate governance mechanisms (CGM) to bring down the earnings management activities. This study attempts to provide insight into the level of conservatism of the CEO with an accounting background. Following Basu (1997) and Khan and Watt (2009), the firm-year measure of conservatism (C_Score) was obtained, which later was associated with the accounting education of the CEO to determine their relationship. As expected, CEOs with accounting background exhibit a higher level of moral reasoning than their non - accounting educated counterparts. The finding of this study is useful to persuade the policymaker to consider lifting the trend of hiring a CEO with an accounting background as one of the best practices that the companies can work out to lessen earnings management activities.

Importance Ranking of Accident Factors of Remote Control Tower Crane by AHP (AHP 분석에 의한 무인타워크레인 사고 요인의 중요도 순위)

  • Kim, Ju-Yong;Jung, Young-Chul;Kim, Gwang-Hee
    • Journal of the Korea Institute of Building Construction
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    • 제20권6호
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    • pp.497-504
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    • 2020
  • In Korea construction industry, researches are being conducted to reduce the disasters related tower crane due to the increase of tower crane's usage and accidents continuously. Although the usage amount of remote control tower crane has been increasing recently, the research on remote-control tower crane is insufficient. In this study, the importance ranking of remote control tower crane's accident factors derived by AHP analysis. AHP questionnaire was conducted to engineers (or operators) like construction site engineer, construction manager, safety engineer, and tower crane operator, who have more than 10 years career. The results of AHP analysis reveal that top ranking factor of remote control tower crane's accident is lifting work for materials. Therefore, the high importance factors should be managed, and taken the priority measures for reducing the tower crane accidents by using the results of this research.

An Evaluation Method for the Musculoskeletal Hazards in Wood Manufacturing Workers Using MediaPipe (MediaPipe를 이용한 목재 제조업 작업자의 근골격계 유해요인 평가 방법)

  • Jung, Sungoh;Kook, Joongjin
    • Journal of the Semiconductor & Display Technology
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    • 제21권2호
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    • pp.117-122
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    • 2022
  • This paper proposes a method for evaluating the work of manufacturing workers using MediaPipe as a risk factor for musculoskeletal diseases. Recently, musculoskeletal disorders (MSDs) caused by repeated working attitudes in industrial sites have emerged as one of the biggest problems in the industrial health field while increasing public interest. The Korea Occupational Safety and Health Agency presents tools such as NIOSH Lifting Equations (NIOSH), OWAS (Ovako Working-posture Analysis System), Rapid Upper Limb Assessment (RULA), and Rapid Entertainment Assessment (REBA) as ways to quantitatively calculate the risk of musculoskeletal diseases that can occur due to workers' repeated working attitudes. To compensate for these shortcomings, the system proposed in this study obtains the position of the joint by estimating the posture of the worker using the posture estimation learning model of MediaPipe. The position of the joint is calculated using inverse kinetics to obtain an angle and substitute it into the REBA equation to calculate the load level of the working posture. The calculated result was compared to the expert's image-based REBA evaluation result, and if there was a result with a large error, feedback was conducted with the expert again.

A Pilot Study for the Development of Functional Workwear for Fishery (기능성 어업용 작업복 개발을 위한 예비연구)

  • Cha, Su Joung
    • Journal of the Korean Society of Clothing and Textiles
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    • 제46권1호
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    • pp.1-16
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    • 2022
  • To develop functional workwear for fishing, this study investigated the working conditions, inconveniences and problems associated with workwear, and functions required for workwear. A questionnaire was used for the study, and SPSS 26.0 was used for the analysis. In total, 124 fishermen participated in this survey (ages: 53.2 ± 11.9), consisting of 84.7% males and 15.3% females. The number of participants whose work experience was more than 10 years and less than 20 years was 46, accounting for 37.1%. Most fishing industry was in danger of getting hit by machinery or clothes. Fishermen preferred two-piece style workwear, and a waterproof fabric was the most important factor considered while purchasing the workwear. Their discomfort while moving in their workwear was attributed to the stretching of their hips, thighs, crotch, and knees when lifting their legs or squatting. Preferences depended on the type of fishery and the age of fishermen. Protection was emphasized for aquaculture fishing, while the activity was emphasized for capture fishing. People in their 50s emphasized the protection provided by the workwear, while others emphasized the activity. In the future, substantial research is necessary to develop workwear that reflects fishermen's requirements.

Productivity Analysis of Spray Task in an International Airport

  • Kisi, Krishna P.;Kayastha, Rujan
    • International conference on construction engineering and project management
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    • The 9th International Conference on Construction Engineering and Project Management
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    • pp.632-639
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    • 2022
  • The objective of this study is to analyze the productivity, efficiency, and factors affecting the productivity of a spray task from an international airport project. The study is focused on the productivity analysis of the Subcontractor whose job was to supply and apply sprayed-applied fire-resistive material (SFRM) on steel members to achieve the necessary fire ratings on the building structures of the Hamad International Airport, Qatar. The study analyzed the productivity of the four sprayer teams who completed the task at three locations and three areas of the airport. The study found that the productivity of the individual team observed during the SFRM spray task was not only different but was also observed different when they worked at varying floor heights where different factors affecting productivity were predominant. The study found that the efficiency was lowest (47.32%) when the spray team had to work at second-floor heights and factors affecting productivity such as limited accessibility for material movement and lifting, site congestion, lack of continuity of operation due to priority areas and frequent re-handling of machines and tools were present. Besides, the factors such as adverse weather conditions and sub-trades interference affected productivity at all locations. The findings show that productivity depends on multiple factors and those factors need to be identified and addressed to improve productivity. The findings also show that the estimated efficiency was hard to achieve but possible since Team 4 had 97% efficiency on the first floor of the airport.

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