Pub Date : 2012-07-09DOI: 10.1109/SEANES.2012.6299594
Qianli Xu, Jamie Ng, Y. L. Cheong, O. Tan, J. B. Wong, T. C. Tay, T. Park
Users' experience of interacting with a robot is mediated by the context that characterizes the co-existence of the human and the robot. However, it has been difficult to study the role of social context in human-robot interaction (HRI) in experimental settings. In this research, we evaluated how social context influenced user acceptance of social robots in a controlled experiment. Using video scenarios with low- and high-level of contextual information, we examined the role of social context in modulating user acceptance. We found that user acceptance of the robot was contingent on the social context, and that information related to social context influenced the amount of user feedback generated by the users concerning the characteristics of social robots.
{"title":"The role of social context in human-robot interaction","authors":"Qianli Xu, Jamie Ng, Y. L. Cheong, O. Tan, J. B. Wong, T. C. Tay, T. Park","doi":"10.1109/SEANES.2012.6299594","DOIUrl":"https://doi.org/10.1109/SEANES.2012.6299594","url":null,"abstract":"Users' experience of interacting with a robot is mediated by the context that characterizes the co-existence of the human and the robot. However, it has been difficult to study the role of social context in human-robot interaction (HRI) in experimental settings. In this research, we evaluated how social context influenced user acceptance of social robots in a controlled experiment. Using video scenarios with low- and high-level of contextual information, we examined the role of social context in modulating user acceptance. We found that user acceptance of the robot was contingent on the social context, and that information related to social context influenced the amount of user feedback generated by the users concerning the characteristics of social robots.","PeriodicalId":111259,"journal":{"name":"2012 Southeast Asian Network of Ergonomics Societies Conference (SEANES)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124348150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-07-09DOI: 10.1109/SEANES.2012.6299559
I. Nada, A. R. Anita, Z. Eqbal, C. Wilson, Z. Z. Afzan, A. Rahmah, C. Atikah
Occupational stress is a major hazard for many workers. Increasing workloads, downsizing, overtime and shift work are just a few the many causes of stressful working condition. Moreover unhealthy work organization will not only affect the work performance but will affect the worker's health as well. With this in mind, a study was conducted to determine the prevalence of occupational stress and to identify the association between the organizational factors with stress level among factory workers. Through a cross sectional study, 91 manufacturing workers were randomly sampled and data was collected using a questionnaire, namely the Job Content Questionnaire (JCQ). The validated self-administered Malay version of JCQ was used to verify the socio-demographic background, the stress level of the respondents and the factors contributed to work stress which is organizational factors. JCQ contains four factors which were the psychological demand (job demand), decision latitude (job control), social support and job insecurity. Overall the prevalence of occupational stress among the respondent was 25.3%. The result showed that there were significant associations between occupational stress and decision latitude (p<;0.001); psychological job demand (p<;0.001); and job insecurity (p=0.027). However, there was no significant association between occupational stress level and social support (p=0.433). This study showed that three out of four organizational factors had significant associations to occupational stress indicating unhealthy work organization. In addition as the prevalence is considered low, work stressors can be detected at an early stage. Therefore, preventive measure or intervention needs to implement accordingly to alleviate the negative consequences since the occupational stress can be considered as a major hazard for the workers.
{"title":"A study of organizational factors in occupational stress problems among workers in a polymer manufacturing factory","authors":"I. Nada, A. R. Anita, Z. Eqbal, C. Wilson, Z. Z. Afzan, A. Rahmah, C. Atikah","doi":"10.1109/SEANES.2012.6299559","DOIUrl":"https://doi.org/10.1109/SEANES.2012.6299559","url":null,"abstract":"Occupational stress is a major hazard for many workers. Increasing workloads, downsizing, overtime and shift work are just a few the many causes of stressful working condition. Moreover unhealthy work organization will not only affect the work performance but will affect the worker's health as well. With this in mind, a study was conducted to determine the prevalence of occupational stress and to identify the association between the organizational factors with stress level among factory workers. Through a cross sectional study, 91 manufacturing workers were randomly sampled and data was collected using a questionnaire, namely the Job Content Questionnaire (JCQ). The validated self-administered Malay version of JCQ was used to verify the socio-demographic background, the stress level of the respondents and the factors contributed to work stress which is organizational factors. JCQ contains four factors which were the psychological demand (job demand), decision latitude (job control), social support and job insecurity. Overall the prevalence of occupational stress among the respondent was 25.3%. The result showed that there were significant associations between occupational stress and decision latitude (p<;0.001); psychological job demand (p<;0.001); and job insecurity (p=0.027). However, there was no significant association between occupational stress level and social support (p=0.433). This study showed that three out of four organizational factors had significant associations to occupational stress indicating unhealthy work organization. In addition as the prevalence is considered low, work stressors can be detected at an early stage. Therefore, preventive measure or intervention needs to implement accordingly to alleviate the negative consequences since the occupational stress can be considered as a major hazard for the workers.","PeriodicalId":111259,"journal":{"name":"2012 Southeast Asian Network of Ergonomics Societies Conference (SEANES)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128448510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-07-09DOI: 10.1109/SEANES.2012.6299582
G. G. Ray, S. P. Biswas
Most liquid, semi-solid or granular foods are bottled to preserve and protect from external impacts. But, `open-ability' of packaging is a major issue for the elderly. Most of the elderly population experience problems in opening a bottle or jar, as they are unable to develop sufficient hand twisting force. The required force is far beyond their capacity. It is, therefore, essential to understand the biomechanical abilities of the elderly population for generating hand twisting force. The aim of this study was to determine the maximum hand twisting force can be generated by the elderly when opening a jar, medicine bottles or other type of bottles. The study was carried out on senior citizens from age range of 65 to 75 years. The age range was divided into groups, 65-70 and 70-75 years. The torque was measured using a calibrated torque transducer. To make the study realistic, a bottle-shaped unit containing a torque transducer internally was used that could easily be picked up and handled like regular activities. To explore the impact of different combinations of closure and base dimension, each volunteer underwent trials in 18 conditions, where the base diameter was 50, 60, 70, 80 and 100 mm and closure diameter was 30, 40, 60, 80, 100 mm. The diameter of the bases, closures and their combinations was derived based on market survey of 130 hand held bottle samples. In each trial, the torque exertion was repeated for three times in between a rest period of 1 minute and between two consecutive trials a rest of 3 minute was given to the elderly to avoid fatigue. The voltage obtained from the transducer was converted to torque data by using a prediction equation `Torque = (0.8309*volt) + 0.0164', developed while calibrating the torque transducer. The torque data were later converted to force data. The torque data were gathered through BIOPAC `AcqKnowledge' software (version 3.7.3) and all statistical analysis were performed using `OriginPro 8.5.1' software. The anthropometric profile of the elderly was studied and no significant variation was observed in the hand dimension of the elderly of different age groups. Statistical analysis of the force data indicated that the hand twisting force exerted by the male elderly of 65-70 years was significantly higher than both the male and female elderly group of 70-75 years (p<;0.05), which is natural phenomenon. But, no significant difference had been observed between the male and female elderly of the age 70-75 years. The mean twisting force was observed maximum with the bottle of 50 mm base and 80 mm closure diameter for both the gender of two age groups (age 65-70 years, 3.72 kg and age 70-75 years, 2.01 kg). Similarly, for both the age groups the mean hand twisting force observed minimum with the bottle of 100 mm base and 30 mm closure diameter (age 65-70 years, 1.20 kg and age 70-75 years, 0.73 kg). It was also observed that for each base, the hand twisting force increased with the increase of the closure
{"title":"Investigation on hand twisting force developed by the Indian elderly for opening different kinds of bottle packaging","authors":"G. G. Ray, S. P. Biswas","doi":"10.1109/SEANES.2012.6299582","DOIUrl":"https://doi.org/10.1109/SEANES.2012.6299582","url":null,"abstract":"Most liquid, semi-solid or granular foods are bottled to preserve and protect from external impacts. But, `open-ability' of packaging is a major issue for the elderly. Most of the elderly population experience problems in opening a bottle or jar, as they are unable to develop sufficient hand twisting force. The required force is far beyond their capacity. It is, therefore, essential to understand the biomechanical abilities of the elderly population for generating hand twisting force. The aim of this study was to determine the maximum hand twisting force can be generated by the elderly when opening a jar, medicine bottles or other type of bottles. The study was carried out on senior citizens from age range of 65 to 75 years. The age range was divided into groups, 65-70 and 70-75 years. The torque was measured using a calibrated torque transducer. To make the study realistic, a bottle-shaped unit containing a torque transducer internally was used that could easily be picked up and handled like regular activities. To explore the impact of different combinations of closure and base dimension, each volunteer underwent trials in 18 conditions, where the base diameter was 50, 60, 70, 80 and 100 mm and closure diameter was 30, 40, 60, 80, 100 mm. The diameter of the bases, closures and their combinations was derived based on market survey of 130 hand held bottle samples. In each trial, the torque exertion was repeated for three times in between a rest period of 1 minute and between two consecutive trials a rest of 3 minute was given to the elderly to avoid fatigue. The voltage obtained from the transducer was converted to torque data by using a prediction equation `Torque = (0.8309*volt) + 0.0164', developed while calibrating the torque transducer. The torque data were later converted to force data. The torque data were gathered through BIOPAC `AcqKnowledge' software (version 3.7.3) and all statistical analysis were performed using `OriginPro 8.5.1' software. The anthropometric profile of the elderly was studied and no significant variation was observed in the hand dimension of the elderly of different age groups. Statistical analysis of the force data indicated that the hand twisting force exerted by the male elderly of 65-70 years was significantly higher than both the male and female elderly group of 70-75 years (p<;0.05), which is natural phenomenon. But, no significant difference had been observed between the male and female elderly of the age 70-75 years. The mean twisting force was observed maximum with the bottle of 50 mm base and 80 mm closure diameter for both the gender of two age groups (age 65-70 years, 3.72 kg and age 70-75 years, 2.01 kg). Similarly, for both the age groups the mean hand twisting force observed minimum with the bottle of 100 mm base and 30 mm closure diameter (age 65-70 years, 1.20 kg and age 70-75 years, 0.73 kg). It was also observed that for each base, the hand twisting force increased with the increase of the closure ","PeriodicalId":111259,"journal":{"name":"2012 Southeast Asian Network of Ergonomics Societies Conference (SEANES)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116651658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-07-09DOI: 10.1109/SEANES.2012.6299593
H. Khalid, S. Ramli
We modelled disaster risk attitudes using top down and bottom up approaches. Top down, we constructed an attitudinal model to comprise of affect, behavior and cognition. Bottom-up, we mined ABC semantics from narratives of disaster experiences and gathered ABC data in an online survey. This paper reports two studies: Study 1 identified ABC semantics through text mining; Study 2 developed a disaster attitudinal dashboard on flood and fire, and conducted a survey among 32 young adults from Malaysia and Singapore. MANOVA was used to analyze the results. The behavior of Malaysians towards flood differed significantly from Singaporeans, while the affect of females differed significantly from males in fire disaster situations.
{"title":"Measuring affect, behavior and cognition for modeling disaster risk attitudes","authors":"H. Khalid, S. Ramli","doi":"10.1109/SEANES.2012.6299593","DOIUrl":"https://doi.org/10.1109/SEANES.2012.6299593","url":null,"abstract":"We modelled disaster risk attitudes using top down and bottom up approaches. Top down, we constructed an attitudinal model to comprise of affect, behavior and cognition. Bottom-up, we mined ABC semantics from narratives of disaster experiences and gathered ABC data in an online survey. This paper reports two studies: Study 1 identified ABC semantics through text mining; Study 2 developed a disaster attitudinal dashboard on flood and fire, and conducted a survey among 32 young adults from Malaysia and Singapore. MANOVA was used to analyze the results. The behavior of Malaysians towards flood differed significantly from Singaporeans, while the affect of females differed significantly from males in fire disaster situations.","PeriodicalId":111259,"journal":{"name":"2012 Southeast Asian Network of Ergonomics Societies Conference (SEANES)","volume":"267 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134171595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-07-09DOI: 10.1109/SEANES.2012.6299564
P. Jongkol, A. Chatmuangpak
The activities associated with construction industry are strenuous and cause health hazardous problem. A field study was conducted to investigate job strain among concrete workers in buildings construction. Twenty one concrete workers participated in this study. Three types of concrete task were: getting, handling, and pouring concrete mixture. Concrete mixture handling and pouring were performed in horizontal and vertical directions. Job Strain Index was used to estimate injury risks, whereas OVAKO Working Posture Analysis System (OWAS) was used to evaluate postural load during work. Moreover, Standardized Nordic questionnaire was used to evaluate musculoskeletal symptoms of the subjects. To compare the physical workload of concrete handling in different directions, heart rate was measured and analyzed. The results showed that the job strain index were 3 and below indicating that the concrete tasks were safe. The OWAS results rated postures of handling and pouring tasks for horizontal handling and getting task for vertical handling in action category 4, which indicated extremely deleterious effect and change required immediately. The results of Standardized Nordic questionnaire revealed that the most commonly affected parts among the workers were lower back, thigh, shoulders and wrists/hands. The greatest increased heart rate was found in the pouring task. The vertical handling showed greater increased heart rate than the horizontal heart rate. It can be concluded that concrete work can place injury risks to concrete workers.
{"title":"Evaluation of concrete work strain in buildings construction","authors":"P. Jongkol, A. Chatmuangpak","doi":"10.1109/SEANES.2012.6299564","DOIUrl":"https://doi.org/10.1109/SEANES.2012.6299564","url":null,"abstract":"The activities associated with construction industry are strenuous and cause health hazardous problem. A field study was conducted to investigate job strain among concrete workers in buildings construction. Twenty one concrete workers participated in this study. Three types of concrete task were: getting, handling, and pouring concrete mixture. Concrete mixture handling and pouring were performed in horizontal and vertical directions. Job Strain Index was used to estimate injury risks, whereas OVAKO Working Posture Analysis System (OWAS) was used to evaluate postural load during work. Moreover, Standardized Nordic questionnaire was used to evaluate musculoskeletal symptoms of the subjects. To compare the physical workload of concrete handling in different directions, heart rate was measured and analyzed. The results showed that the job strain index were 3 and below indicating that the concrete tasks were safe. The OWAS results rated postures of handling and pouring tasks for horizontal handling and getting task for vertical handling in action category 4, which indicated extremely deleterious effect and change required immediately. The results of Standardized Nordic questionnaire revealed that the most commonly affected parts among the workers were lower back, thigh, shoulders and wrists/hands. The greatest increased heart rate was found in the pouring task. The vertical handling showed greater increased heart rate than the horizontal heart rate. It can be concluded that concrete work can place injury risks to concrete workers.","PeriodicalId":111259,"journal":{"name":"2012 Southeast Asian Network of Ergonomics Societies Conference (SEANES)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134255009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-07-09DOI: 10.1109/SEANES.2012.6299601
Soo Li Choong, F. Munir, S. Saidin, W. M. A. W. Sulaiman, N. Senin
This paper presents an application of EQUID design approach in developing a MEMS sensor device for green house application. Functional and affective requirements were identified in early design stage utilizing Kawakita Jiro (KJ) method. By using a user centered design approach, the ergonomic quality and the usability of the sensor device were analyzed based on the criteria of the sensor device installation, the serviceable level of the sensor device, the GUI of the system, as well as the robustness of the sensor device in actual application. The usability test was carried out at to evaluate and review the ergonomics quality and the usability of the sensor device.
{"title":"Modeling MEMS sensor device for green house application","authors":"Soo Li Choong, F. Munir, S. Saidin, W. M. A. W. Sulaiman, N. Senin","doi":"10.1109/SEANES.2012.6299601","DOIUrl":"https://doi.org/10.1109/SEANES.2012.6299601","url":null,"abstract":"This paper presents an application of EQUID design approach in developing a MEMS sensor device for green house application. Functional and affective requirements were identified in early design stage utilizing Kawakita Jiro (KJ) method. By using a user centered design approach, the ergonomic quality and the usability of the sensor device were analyzed based on the criteria of the sensor device installation, the serviceable level of the sensor device, the GUI of the system, as well as the robustness of the sensor device in actual application. The usability test was carried out at to evaluate and review the ergonomics quality and the usability of the sensor device.","PeriodicalId":111259,"journal":{"name":"2012 Southeast Asian Network of Ergonomics Societies Conference (SEANES)","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126816716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-07-09DOI: 10.1109/SEANES.2012.6299588
Siang-Ting Siew, A. Yeo
This paper reports on the use of a proposed methodological framework called PRISMA (Participatory Action Research in Software Development Methodology Augmentation) to support and design a mobile-based healthcare application for a remote Penan community in Malaysian Borneo. PRISMA employs participatory action research (PAR). The approach has been successfully applied in projects with rural communities. The intent of PRISMA is to strengthen community participation and local management in order to ensure software system is built at interest of community. The healthcare application is targeted at young school-children and mothers as they have a major influence on health issues affecting their family. A key aspect of PRISMA is the active participation of multiple stakeholders - in our case, the villagers, medical doctors, researchers as well as teachers, who will be assisting in the monitoring of the usage and health change process for the children. Preliminary results of the health intervention will be reported.
{"title":"Adapting PRISMA for software development in rural areas: A mobile-based healthcare application case study","authors":"Siang-Ting Siew, A. Yeo","doi":"10.1109/SEANES.2012.6299588","DOIUrl":"https://doi.org/10.1109/SEANES.2012.6299588","url":null,"abstract":"This paper reports on the use of a proposed methodological framework called PRISMA (Participatory Action Research in Software Development Methodology Augmentation) to support and design a mobile-based healthcare application for a remote Penan community in Malaysian Borneo. PRISMA employs participatory action research (PAR). The approach has been successfully applied in projects with rural communities. The intent of PRISMA is to strengthen community participation and local management in order to ensure software system is built at interest of community. The healthcare application is targeted at young school-children and mothers as they have a major influence on health issues affecting their family. A key aspect of PRISMA is the active participation of multiple stakeholders - in our case, the villagers, medical doctors, researchers as well as teachers, who will be assisting in the monitoring of the usage and health change process for the children. Preliminary results of the health intervention will be reported.","PeriodicalId":111259,"journal":{"name":"2012 Southeast Asian Network of Ergonomics Societies Conference (SEANES)","volume":"213 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134162921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-07-09DOI: 10.1109/SEANES.2012.6299585
Shreya Maulik, Amitabha De, Rauf Iqbal
Medical laboratory technicians are a unique group of healthcare professionals who are at risk for developing work related musculoskeletal symptoms. The study was conducted using 49 laboratory technicians working in the department of laboratory medicine in Mumbai hospitals. Several measures were obtained: Quick Exposure Checklist (QEC), Nordic Musculoskeletal Questionnaire (NMQ), Visual Analogue Scale (VAS), RULA and REBA. Results show that the most prevalent body regions were lower back (30.61%), upper back, knees (20.40%) and neck (18.36%). The QEC analysis showed that the neck (93.4%) has the highest level of exertion followed by the wrist (69.1%), back (62.7%) and shoulder (54.3%). The analysis of Visual Analogue Scale (VAS) revealed significant differences in the morning and evening scores for neck (p<0.005), low back (p<0.012) and knees (p<0.023). A significant difference was also found in hand grip measurements before and after the 8 hour shift, similar as for pinch grip measurements. RULA and REBA scores for various activities varied from 4 to 7 and 5 to 12 respectively. Scores of RULA and REBA indicated that risk was very high and further investigations were required. The subjective evaluation of workstations revealed that 22.4% felt the workstation height was inappropriate and an objective evaluation showed that the dimensions of the laboratory work benches were not appropriate. Stress and pain were evident from the findings of NMQ and QEC. Ergonomics intervention was recommended to reduce WRMSDs for the medical laboratory technicians.
{"title":"Work related musculoskeletal disorders among medical laboratory technicians","authors":"Shreya Maulik, Amitabha De, Rauf Iqbal","doi":"10.1109/SEANES.2012.6299585","DOIUrl":"https://doi.org/10.1109/SEANES.2012.6299585","url":null,"abstract":"Medical laboratory technicians are a unique group of healthcare professionals who are at risk for developing work related musculoskeletal symptoms. The study was conducted using 49 laboratory technicians working in the department of laboratory medicine in Mumbai hospitals. Several measures were obtained: Quick Exposure Checklist (QEC), Nordic Musculoskeletal Questionnaire (NMQ), Visual Analogue Scale (VAS), RULA and REBA. Results show that the most prevalent body regions were lower back (30.61%), upper back, knees (20.40%) and neck (18.36%). The QEC analysis showed that the neck (93.4%) has the highest level of exertion followed by the wrist (69.1%), back (62.7%) and shoulder (54.3%). The analysis of Visual Analogue Scale (VAS) revealed significant differences in the morning and evening scores for neck (p<0.005), low back (p<0.012) and knees (p<0.023). A significant difference was also found in hand grip measurements before and after the 8 hour shift, similar as for pinch grip measurements. RULA and REBA scores for various activities varied from 4 to 7 and 5 to 12 respectively. Scores of RULA and REBA indicated that risk was very high and further investigations were required. The subjective evaluation of workstations revealed that 22.4% felt the workstation height was inappropriate and an objective evaluation showed that the dimensions of the laboratory work benches were not appropriate. Stress and pain were evident from the findings of NMQ and QEC. Ergonomics intervention was recommended to reduce WRMSDs for the medical laboratory technicians.","PeriodicalId":111259,"journal":{"name":"2012 Southeast Asian Network of Ergonomics Societies Conference (SEANES)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131232219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-07-09DOI: 10.1109/SEANES.2012.6299557
Z. Z. Afzan, S. A. Hadi, B. T. Shamsul, H. Zailina, I. Nada, A. R. S. Rahmah
This study is a cross-sectional study with the objective to determine mismatch between school furniture and anthropometric measurement among primary school children in Mersing. The sample consisted of 91 primary school children (46 male and 45 female) from Year 2 and Year 5 in two schools in Mersing District, Malaysia. Seven anthropometric measurement (height, weight, popliteal height, buttock-popliteal length, hip breadth, shoulder height and elbow height while sitting) as well as 5 furniture dimensions (seat height, seat depth, seat width, backrest height and seat to desk height) were taken. Instruments used were Martyn type anthropometer set, ruler, height scale and weighing scale. Differences between genders in anthropometric measurements were also investigated in this study. Findings showed 100% high mismatch for seat height, seat depth, desk height respectively while 56% match and only 44% mismatch for backrest height among Year 2 children. Year 5 students reported contrary result with 79% mismatch for seat height, 91% for backrest height and 100% for both seat depth and desk height. There was no significant difference between genders for both age groups. In conclusion, there was a mismatch between furniture and children's anthropometric measurements. It is recommended that school furniture be redesigned so as to conform to the children's physiological measurement. The use of adjustable furniture can be taken into consideration in designing new furniture for school environments in order to meet all the differences in children anthropometry.
{"title":"Mismatch between school furniture and anthropometric measures among primary school children in Mersing, Johor, Malaysia","authors":"Z. Z. Afzan, S. A. Hadi, B. T. Shamsul, H. Zailina, I. Nada, A. R. S. Rahmah","doi":"10.1109/SEANES.2012.6299557","DOIUrl":"https://doi.org/10.1109/SEANES.2012.6299557","url":null,"abstract":"This study is a cross-sectional study with the objective to determine mismatch between school furniture and anthropometric measurement among primary school children in Mersing. The sample consisted of 91 primary school children (46 male and 45 female) from Year 2 and Year 5 in two schools in Mersing District, Malaysia. Seven anthropometric measurement (height, weight, popliteal height, buttock-popliteal length, hip breadth, shoulder height and elbow height while sitting) as well as 5 furniture dimensions (seat height, seat depth, seat width, backrest height and seat to desk height) were taken. Instruments used were Martyn type anthropometer set, ruler, height scale and weighing scale. Differences between genders in anthropometric measurements were also investigated in this study. Findings showed 100% high mismatch for seat height, seat depth, desk height respectively while 56% match and only 44% mismatch for backrest height among Year 2 children. Year 5 students reported contrary result with 79% mismatch for seat height, 91% for backrest height and 100% for both seat depth and desk height. There was no significant difference between genders for both age groups. In conclusion, there was a mismatch between furniture and children's anthropometric measurements. It is recommended that school furniture be redesigned so as to conform to the children's physiological measurement. The use of adjustable furniture can be taken into consideration in designing new furniture for school environments in order to meet all the differences in children anthropometry.","PeriodicalId":111259,"journal":{"name":"2012 Southeast Asian Network of Ergonomics Societies Conference (SEANES)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117240732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-07-09DOI: 10.1109/SEANES.2012.6299553
Yu-Chi Lee, Wen-Yu Chao, Mao-Jiun Wang
3D foot anthropometric data was collected and classified into several foot shapes. A 3D foot anthropometric database which contains 1835 male right foot scanning images was used. The subjects aged from 18 to 60 years old. A 3D foot scanner was used to collect 12 foot dimensions including foot length, ball of foot length, outside ball of foot length, foot breadth, heel breadth, ball circumference, instep circumference, toe height, navicular height, instep height, toe 1 angle and toe 5 angle. The principle component analysis (PCA) and K-means cluster analysis was applied to classify male subjects' foot shapes. The PCA results indicated that foot breadth, foot length and navicular height were selected as three principle components. The percentage of total variance explained by the 3 principle components was 72.96%. The use of K-means clustering can classify male subjects' foot into 6 foot types. In addition, a new foot sizing system was developed for Taiwanese males. Comparing the new sizing system with the current CNS 4800-S1093 sizing system, the new sizing system can reduce the size numbers, and provide updated foot dimensions. Thus, the manufacturer can apply these results for shoe last design and footwear production with better fitness and lower cost.
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