Browse publications by year: 2016

  1. Noor, N.S.M., Ghazalli, Z., Mamat, R., Kadirgama, K., Sani, M.S.M., Ahmad, Z., et al.
    MyJurnal
    Seating comfort is one of the important indicators while driving especially for a long hour drive. The objective of this study was to execute a preliminary study of survey and identify the discomfort of body while driving and after driving session by conducting a survey. The questionnaire developed was tested for its reliability. By using Cronbach’s Alpha, this paper’s contribution was found to be significant in which it provides a survey with acceptable test reliability in which the alpha (α) was 0.887. The survey was conducted on 30 students of University Malaysia Pahang (20 male and 10 female) with driving experience and valid driving license. The subjects should have experiences in driving small size car or mini car as well. The results showed that the body area that the drivers felt discomfort while driving and after driving should be known. The findings showed that the discomfort was intense at the neck, upper back, and lumbar while and after driving.
  2. Nurul Izzah Abd Rahman, Siti Zawiah Md Dawal
    MyJurnal
    It was suggested by most researchers that train drivers’ workload and alertness levels attribute to train accidents. The main objective of this study is to determine the significant patterns of mental workload and alertness levels of train drivers with respect to the conditions. The data are collected from simulation experiments on 15 professional train drivers. The simulation experiments are performed under three driving conditions (i.e. daytime, rainy daytime and rainy night) using a train driving simulator set. Electroencephalogram (EEG) signals are collected from six significant points on the body of the subjects. It is found that the mental workload of the train drivers tends to be high during rainy night driving condition and sleepiness occurs which is indicative of low vigilance. The beta amplitude increases under rainy night driving condition which may be attributed to viewing difficulties while driving in the dark. The results reveal that there is a significant different between each session (p = 0.042) especially with the pattern for rainy night driving. It is also observed that there is lower mental workload among the train drivers, which indicates that the train drivers are detached from their work.
  3. Mirta Widia, Siti Zawiah Md Dawal, Nukman Yusoff
    MyJurnal
    Most studies have examined the association of ergonomic risk factors and musculoskeletal discomfort in developed countries. Meanwhile the data are still lacking in developing countries such as Malaysia. The aim of this study was to determine the relation between risk factors and musculoskeletal discomfort among manual material handling workers in Malaysian automotive industries. A total of211 manual material handling workers from automotive industries completed a set of questionnaire on the individual, physical and environmental factors and the prevalence of musculoskeletal discomfort. The Chi-Square test and logistics regression analysis were used to determine the relationship of the risk factors and musculoskeletal. The findings highlighted that job tenure was significantly correlated with musculoskeletal discomfort among the workers (OR=2.33-5.56). The most significant physical risk factor that was associated with musculoskeletal discomfort was bending the trunk forward slightly, hands above knee level, which was significantly related to lower back discomfort (OR=5.13, 95%CI=1.56-16.8), thigh discomfort (OR=5.1, 95%CI=1.01-25.53) and wrist discomfort (OR=3.65, 95%CI=1.06-12.53). Twisting of the trunk (over 45o) and bending sideways were significantly associated to lower back discomfort (OR=4.04, 95%CI=1.44-14.44), and thigh discomfort (OR=4.3, 95%CI=1.29-8.50). The findings also highlighted that environmental factors was associated with musculoskeletal discomfort (p < 0.05. Musculoskeletal discomfort can be reduced by lowering work-related risk factors among automotive manual material handling workers, particularly by focusing on significant factors, including job tenure, bending or twisting postures and environmental factors.
    MeSH terms: Developing Countries; Hand; Human Engineering; Industry; Malaysia; Posture; Surveys and Questionnaires; Regression Analysis; Risk Factors; Thigh; Wrist; Wrist Joint; Prevalence; Developed Countries
  4. Ezrin Hani Sukadarin, Baba Md Deros, Jaharah A. Ghani, Ahmad Rasdan Ismail, Nur Syazwani Mohd Nawi, Norhidayah Abdull
    MyJurnal
    Validity test is important during the development of ergonomics measurement. Failure to conduct validity tests will result in the measurement method being developed to be incapable of providing reliable ergonomics measurements. The objective of this study is to conduct validity test on the simple method ergonomics measurement which was developed. The method named Simple Ergonomics Risks Assessment (SERA). Content validity test and criterion validity test were conducted. The content validity test consists of 6 ergonomics experts who actively provide inputs and positive feedbacks to improve the measurement method being developed. Meanwhile, the criterion validity test involves data collection of complaints on body parts among oil palm workers which were derived from Nordic Musculoskeletal Questionnaire (NMQ) and ergonomics risk assessment scores obtained from SERA. Both findings were tested with the Chi-square test to explore possible relations between the two findings. Results from the test conducted showed that there are significant relations in the scores of neck posture; hip, right and left shoulder, right and left wrists and the right hand associated with fresh fruit bunch (FFB) harvesting activities. In the loose fruits collection, the Chi-square test showed significant relations in the scores of neck posture, hip, right and left shoulders, right wrist, right arm and the left hand. However, there are body parts such as the legs which showed no significant relation. More tests should be conducted to further explore the validity of the method being developed. Findings from both validity tests show that SERA were verified by the experts and tested with validated method so that it is valid to be applied in the future.
    MeSH terms: Fruit; Hand; Posture; Surveys and Questionnaires; Shoulder; Wrist; Risk Assessment; Human Body
  5. Deros, B.M., Daruis, D.D.I., Ghani, J.A., Saleh, C., Wazir, R.M., Yasim, M.K., et al.
    MyJurnal
    This An Ergonomic hazard often exists in any industry. However, majority of the employees are not aware of practicing good body posture until the MSDs symptoms become permanent and chronic. The main objective of this study is to determine the manual handling problems among workers at an electronic component manufacturing company. The scope of this study focused on the study entire body disorders among workers on electronic manufacturing company using the Rapid Entire Body Assessment (REBA). A cross sectional study involving observation of the workplace, the work task and the working environment, photographs and videos taken during the observation. Later, a survey questionnaire was given to the respondents to obtain their socio-demography information, work activity and health problems. Rapid Entire Body Assessment (REBA) was conducted on all respondents to determined REBA scores in different work positions. The study was conducted at an electronic component manufacturing company located in Klang Valley, Selangor. A total of 124 workers were surveyed and REBA assessment was performed on 20 workers at Company X production area. It includes 5 categories of position at Company X, such as:loading steel bar into casing; pushing the steel bar, turning movement while adjusting the steel bar, adjusting steel bar into the loading area, unloading steel bar from casing into the machine. The study found that turning section has the highest MSDs problems regarding manual handling because majority of the respondents in the turning department felt the pain while performing their work. This is due to their job demand, which they need to handle with tools weighing from 200 to 400 kg. The REBA scores showed that17 out of 20 respondents performing turning operations, moving and pushing the steel bar recorded the highest score of 11 or more which are categorize in the very high risk group. The position of pushing and turning steel bar while moving the steel bar has higher risk that contributed to the ergonomics risk factor, which in-turn can contribute to Muscular Skeletal Disorders (MSDs). More detailed investigation and remedial measures should be taken immediately, especially for the workers performing the manual handlings activities.
    MeSH terms: Cross-Sectional Studies; Demography; Industry; Pain; Posture; Surveys and Questionnaires; Risk Factors; Steel; Workplace
  6. Seri Rahayu, Mohammad Firdaus, Mohd Fa’iz
    MyJurnal
    The purpose of this study is to compare the road conditions (straight road, winding road and hill road) with the hand grip pressure force and muscle fatigue for male and female drivers. Ten subjects were participated in this study. The force measurement and electromyography (EMG) responses were taken and evaluated by using the tactile grip and pressure measurement (Grip System) and Electromyography (EMG) device. The result indicated that the winding road produced more muscle fatigue and high hand grip pressure force compared than downhill road, hill up road, and straight road for both male and female subjects. The result compared the muscle fatigue and hand grip pressure force between the first 15 minutes and last 15 minutes of driving activity. The muscle fatigue increasingly high for the last 15 minutes compared to first 15 minutes. However, the hand grip pressure forces become high during the winding road for first 15 minutes of driving session. The muscle fatigue become high as the hand grip pressure force value is high. Furthermore, the male drivers exert higher hand grip pressure force and higher muscle fatigue compared to female drivers. This study can be used as a guideline for the future studies, primarily in solving the driving fatigue problem among the Malaysian’s drivers. The method of this study could also be used for early detection of driver fatigue issues. Indirectly, the findings could reduce the number of car accidents in Malaysia.
  7. Lum SG, Noor Liza I, Priatharisiny V, Saraiza AB, Goh BS
    Malays Fam Physician, 2016;11(1):2-6.
    PMID: 28461841 MyJurnal
    BACKGROUND: Conditions causing stridor in paediatric patients can range from minor illnesses to life-threatening disorders. Proper evaluation and correct diagnosis are essential for timely intervention. The objective of this study was to determine the aetiological profiles and the management of paediatric patients with stridor referred to the Otorhinolaryngology Department of Hospital Serdang.

    METHODS: Medical records of all paediatric patients presenting with symptom of stridor from January 2010 to February 2015 were reviewed retrospectively. The patients' demographic data, clinical notes, laryngoscope findings, diagnosis and management were retrieved and analysed.

    RESULTS: Out of the total 137 patients referred for noisy breathing, 121 patients had stridor and were included in this study. There were 73 males and 48 females-most were of Malay ethnicity (77.7%). The age of presentation ranged from newborn to 10 years, with a mean of 4.9 months. Eighteen patients (14.9%) had associated congenital pathologies. The majority were congenital causes (90.9%), in which laryngomalacia was the commonest (78.5%), followed by subglottic stenosis (5.0%), vallecular cyst (2.5%) and congenital vocal fold paralysis (2.5%). Twelve patients (9.9%) had synchronous airway lesion. The majority of the patients were managed conservatively. Thirty-one patients (25.6%) required surgical intervention, of which only one needed tracheostomy.

    CONCLUSION: Laryngomalacia was the commonest cause of stridor among paediatric patients. A synchronous airway lesion should be considered if the child has persistent or severe symptoms. The majority of the patients were managed conservatively.

    MeSH terms: Child; Constriction, Pathologic; Cysts; Demography; Female; Humans; Infant, Newborn; Laryngeal Diseases; Laryngostenosis; Malaysia; Male; Medical Records; Otolaryngology; Respiratory Sounds; Retrospective Studies; Tracheostomy; Vocal Cord Paralysis; Vocal Cords; Laryngoscopes; Laryngomalacia
  8. Mohd Zahiruddin Zukfali, Haliza Abdul Rahman
    MyJurnal
    The objective of study is to determine traffic noise level and non-auditory effect among shop lot workers at Kajang Selangor. This cross sectional study was carried to study traffic noise exposure with annoyance and work performance level among shop lot workers in Jalan Mendaling, JalanTukang and Jalan Sulaiman at Kajang town, Selangor. This study involves 120 shop lot workers that exposed to the traffic noise during their working hours where they are randomly selected. Noise exposure was estimated using the Sound Level Meter for environmental noise. The traffic volume was recorded using video recorder and calculated using tally counter. One set questionnaire consist standard questionnaire was used to assess the annoyance level and work performance level among the respondents. Respondents were predominantly by male which are 94 and female, 26 respondents. The mean age of the respondent were ranged between 41 to 60 years old. Only 12.5% of respondent are ranged 21 until 30 years old. In total of 120 respondent, 54.2% of them are Chinese while Malay and India only 30% and 15.8% respectively. The result showed that the traffic noise level at study areas are exceeded the permissible sound limit of commercial and business area during daylight which is 70 dB(A). Regarding work performance, 94 respondents are having low work performance level and 82% of respondent high annoyance level during the exposure of traffic noise from four different sources which are noise from the traffic, speeding vehicle, high traffic volume and exhaust system. There is a significant relationship between traffic noise level with work performance level (p=0.001) and annoyance level (p=0.026). The average traffic noise (Laeq) level at Jalan Mendaling, Jalan Tukang and Jalan Sulaiman is 71.19 dB(A) which were high and exceeds permissible sound level from road traffic, commercial and business place at day time, 70 dB(A). The exposure from the traffic noise effect the annoyance level and work performance level among the shop lot worker. In order to reduce traffic noise exposure towards the shop lot workers, some recommendation are needed to control the traffic noise such as build a noise barrier, plant trees and also enforcement of legal requirement in noise level.
    MeSH terms: Work Performance; Azepines; Cross-Sectional Studies; Environment; Female; India; Malaysia; Male; Noise; Surveys and Questionnaires; Sound; Thiocarbamates; Trees
  9. Mahmood Ali, Mohd Sapuan Salit, Karmegam Karuppiah, Abu Saleh Ahmed
    MyJurnal
    This study was conducted to evaluate the discomfort level of students from the Polytechnic Kuching Sarawak while they were sitting on chairs. Polytechnic Kuching students (n=500) completed a set of questionnaires utilizing a survey form which showed the body chart discomfort using Borg’s CR-10 Scale. The students was asked to identify body areas experiencing discomfort and to rate this discomfort using score rating groups (0 to 5) where score 0-1.99 = No discomfort (1), score2.00-3.99 =Discomfort (2) and score 4.00-5.00 = Very uncomfortable (3).The evaluation of seating discomfort levels showed acceptable levels for the students and possible outstanding problems. Students were asked to rank over an order 10 statements about comfort and choose three responses which gave the most consistent equal interval scale. The results showed that the main response of discomfort indicated the students felt cramped, stiff, numb, sore and tender muscle, unbearable pain, barely comfortable and uncomfortable. This project was identified to evaluate the comfort level for classrooms chairs of polytechnic students. Overall, there was a significant discomfort level for the students whilst sitting on chairs and a possible solution put forward is to design a new type of classroom chair made of natural fibre reinforced composite.
  10. Nurzuhairiza Zolkifli, Shamsul Bahri Mohd Tamrin, Ng Yee Guan, Nur Shuhada Mohd Shukoor, Nur Fitriyah Md Akir, Ng Gin Siong, et al.
    MyJurnal
    Safety helmet become vital personal protective equipment especially in the plantation in preventing the head from injury. This study evaluate the knowledge, attitude and practice on safety helmet usage among harvesters, the association between knowledge, attitude and practice of safety helmet usage with head injury; and the significant differences of the safety helmet practices before and after the intervention. A cross-sectional study was conducted among 109 harvesters in two oil palm plantation located in Selangor, Malaysia. A set of questionnaire was used to collect the socio demographic background data, knowledge, attitude and practice on the usage of safety helmet. An intervention program through tool box talk on proper usage of safety helmet also was given followed by an observation to look for the differences before and after the tool box promotion on the use of safety helmet. Result from the descriptive analysis showed high score for knowledge, fair score for the attitude and practice among harvesters. There is no association between knowledge (X2=2.733; p>0.05), attitude (X2=2.546; p>0.05) and practice (X2=2.473; p>0.05) with the head injury. The result also gave no significant differences (p>0.05) of the practices before and after the intervention. However, the trends showed decrease in number of practices after the intervention. This study reveals that the knowledge, attitude and practice are not a prominent indicator for head injury among harvesters.
    MeSH terms: Personal Protective Equipment; Cross-Sectional Studies; Demography; Head; Craniocerebral Trauma; Head Protective Devices; Malaysia; Surveys and Questionnaires; Knowledge
  11. Tan, Henry C.L., Heah Hsin Tak, Tan Jih Huei, Premaa Supramaniam, Sarojah Arulanantham
    Medical Journal of Malaysia, 2016;71(5):225-230.
    MyJurnal
    The aim of this study was to determine the usefulness of Rockall score in predicting outcomes of 30 days rebleeding, mortality and need for surgical intervention of bleeding gastric and duodenal ulcers. this is a retrospective cohort study of all the emergency endoscopies performed in Hospital sultan Ismail from January 2009 to October 2014 for indications of upper gastrointestinal bleeding (UGIb). Data was extracted from hospital's electronic database and only non-variceal bleeds were included. Rockall score was calculated and outcomes of 30 days rebleeding, mortality and need for surgery was recorded. For each outcome, calibration was done using the Goodness-of-fit tests and discriminative ability was reflected by area under the receiver operating characteristic curve (AUROc). A total of 1323 patients were included with a male preponderance of 64%. the overall rates of rebleeding were 11.2%, mortality rate of 8.7% and need for surgery was 2%. Low AUROc values for rebleeding (0.63), mortality (0.58) and surgery (0.67) showed poor discriminative ability of Rockall score. the Goodness-of-fit test also revealed that the scoring system was poorly calibrated in outcomes of rebleeding (p
    MeSH terms: Calibration; Duodenal Ulcer; Eugenol; Gastrointestinal Hemorrhage; Humans; Male; Retrospective Studies; ROC Curve; Zinc Oxide; Area Under Curve
  12. Nur Syazwani Mohd Nawi, Baba Md Deros, Mohd Nizam Ab. Rahman, Ezrin Hani Sukadarin, Norani Nordin
    MyJurnal
    Agricultural activities have always been associated with hazards and injuries. Most common injuries experienced by workers are health, safety and ergonomic injuries. It stems from many causes, such as the use of manual tools, incorrect working position, inadequate rest and overloading. This paper aims to reveal the daily hazardous work task of oil palm plantation workers with highlighting the ergonomics problems and risk of injury they faced. Observations of work tasks and distribution of Modified Nordic Questionnaire (MNQ) were performed for every work unit. Worker’s activities and posture while performing work tasks were recorded extensively using camera and video recordings for ergonomics analysis. Results from the observation and questionnaire survey conducted, showed that oil palm plantation workers are exposed to the risk of dangerous work every day. Fresh fruit bunches cutter and loose fruit collectors were having highest body pain complaints and almost from them are having low back pain problems. Therefore, it is necessary for an immediate action from the management in order to determine the current prevalence of ergonomic injuries. Using of manual tools should be avoided and plantation workers should be provided with ergonomics machines that can help them reduce their workload and injuries.
  13. Kabilmiharbi, N, Selamat, F.E
    MyJurnal
    Manual workers in plastics industry are often exposed to work related discomfort and pain while performing their daily
    task. These exposure leads to common occupational diseases such as Work-related Musculoskeletal Disorder (WMSD) or
    low back pain (LBP) which in turn will affect their working performance. The main objective for this study is to
    analyse the working posture of a manual worker that works in a polypropylene fibrillated yarn industry using RULA
    assessment in CATIA P3 V5R14 software. The subject were selected from the packaging area as the manual handling
    work are only present in that area. Based on the RULA analysis done by constructing the worker posture in the
    software, several awkward postures were identified to be high in risk factors. The postures that is high in risk is
    postures 3 which is due to lifting heavy loads and twisting or turning of the trunk. The postures obtained the final
    RULA analysis score of 7 and this indicates that changes must be done immediately. It is recommended that the
    company should increase the ergonomic awareness among the manual workers especially while performing their work
    and to redesign the working posture for the manual workers.
    MeSH terms: Human Engineering; Musculoskeletal Diseases; Occupational Diseases; Plastics; Polypropylenes; Posture; Risk Factors; Software; Low Back Pain; Lifting
  14. Mohd Syazwan Solah, Baba Md Deros, Zulhaidi Mohd Jawi, Nur Zarifah Harun, Azhar Hamzah, Aqbal Hafeez Ariffin
    MyJurnal
    Mobile phone distraction is a global issue in road safety perspective especially involving the pedestrians. A lot of
    research findings had suggested that the use of mobile phone increase the risk for pedestrians while crossing the
    road, but there have been very few studies that could explain the said threat in Malaysia’s situation. This study aims
    to identify the distracted pedestrian behaviour via the video recording method. More than 300 samples were
    observed as involved in mobile phone distractions while crossing the roads from a total of approximately 1,500
    analysed samples. The study also found that the highest mode of distraction observed among pedestrians was the
    “handheld usage” (conversing) as compared to the “hands-free” and “application usage” modes. In addition, the
    distractions had significantly affected the time to cross and the observed road users who were involved in
    “application usage” took longer time to cross. These results provide a prevalence material that may be useful in the
    development of countermeasures.
  15. Nurul Huda Baba, Dian Darina Indah Daruis
    MyJurnal
    Repetitive Strain Injury (RSI) is the most common occupational injury faced by computer users. Computer users faced
    higher possibility of getting RSI due to their prolonged working time and static posture. The three main objectives of
    this study are, first: to identify the prevalence of RSI among computer users; second, to investigate and determine the
    RSI risk factors; and third to analyze the association between RSI risk factors and the prevalence of RSI among computer
    users at a Telecommunication Company X. A total of 100 respondents were selected based on their daily exposure to
    computer usage of more than 4 hours. Nordic modified questionnaire was used to gather respondents’ sociodemographic
    data, job’s information, physical risk exposure, physical symptoms and their awareness level towards RSI.
    Body Parts Symptoms Survey (BPSS) form were also used to identify the body parts exposed to the RSI risk among
    computer users. The data was analysed using Statistic Package for Social Science (SPSS) version 22. Study results showed
    that the 41% of computer users in Telecommunication Company X felt tired at the upper-back near the neck and 38%
    at the shoulder region. In conclusion, the prevalence of RSI among computer users is high at upper back near the neck
    and at the shoulder region. There is a significant association between risk factors of RSI and the prevalence of RSI
    among the computer users at Telecommunication Company X.
  16. Soo Li Choong, Khairul Nazri Abd Wahib, Sheridan Saidin, Mohd Rohaizam Mohd Tahar
    MyJurnal
    This paper presents the methodologies and the systematic approaches in the industrial design development process
    to incorporate aesthetic and affective elements in a Glucose Sensor device. EQUID (Ergonomics Quality in Design)
    design approach was applied where users’ requirements were identified in early design stage utilizing Kawakita Jiro
    (KJ) method. Benchmarking and trend analysis were also conducted in early stage to understand market trends,
    compare features and faults in existing product in the market, at the same time finding opportunities for
    improvement in our own product. The development of the shape of the Glucose Sensor device, the color chosen and
    the branding profile creation were also discussed in the paper. Several design concepts and prototypes have been
    developed and user’s emotions towards each concept in focus group have been captured. The survey was carried out
    at the end of this paper to assess the design effectiveness.
  17. Ng, Y.G., Jamalohdin, M.N., Shamsul, B.M.T.
    MyJurnal
    The objectives of this study are to investigate diagnostic value of two different tests amongst tests highly
    recommended and used for diagnosis of HAVS of the sensorineural component; Semmes Weinstein Monofilament
    (SWM) and Purdue Pegboard (PP) tests using vibrotactile perception threshold (VPT) test as standard objective
    quantitative test. For the method, a total of 176 grinders as vibration exposed respondent of a shipyard’s
    fabrication participated in this study. Questionnaire and vibration exposures data were collected for all respondents
    where 67 respondents further performed the three quantitative sensorineural testing. The result showed that mean
    acceleration magnitude of grinding tools used were 4.9 ms-2, exceeding recommendation by European Commission.
    Both cut-off point methods of mean plus two times standard deviation (mean + 2sd) and z-score (at 75th percentile)
    show significant difference among healthy and HAVS (p < 0.001). Correlation between SWM with VPT and PP with VPT
    was weak. However, results suggests progressive pathological damage to sensorineural component of the digits starts
    with fast-adapting II (FA II) mechanoreceptors indicated with significant correlation primarily at 125 Hz. Analyses of
    sensitivity and specificity found that monofilament at 0.16g force best discriminate HAVS from healthy. In the other
    hand, Purdue Pegboard test shows best diagnostic value of indicating HAVS at minimum insert of 16 pin and 14 pin
    respectively for dominant and non-dominant hand. Both Semmes Weinstein Monofilament and Purdue Pegboard tests
    has limited diagnostic value to be used as screening tools for early detection of HAVS.
  18. Hanani Yuhaniz, Asnawi Seraila, Siti Rafedah Abdul Karim, Suhaimi Muhammed, Abdul Hamid Saleh
    MyJurnal
    In developing ergonomically sound furniture, there is a need in evaluating anthropometrics from various aspect such as gender differences. The objectives of this study was to evaluate anthropometrics differences between genders of children in Malaysia in order to determine the need in having specified chairs for each gender. Represented by four states in Malaysia, a total of 2400 children were involved in the study. A custom made measurer and an anthropometer were used to measure the subjects. Six body measurements, which are, sitting shoulder height, sitting subscapular height, shoulder breadth, buttock popliteal length, popliteal height and hip width were documented for evaluation. From this study, there were some significant differences on some body parts while other body parts were similar to male and female. Therefore, chairs are needed to be made according to the suitability of both gender.
    MeSH terms: Anthropometry; Buttocks; Child; Culture; Female; Humans; Malaysia; Male; Posture; Sex Factors; Shoulder; Human Body
  19. Mohd Hafzi MD Isa, Baba MD Deros, Zulhaidi Mohd Jawi, Khairil Anwar Abu Kassim
    MyJurnal
    Anthropometric Test Devices (ATDs) of different nominal percentile values have long been used as human surrogates in automotive crash testing. The Hybrid III family, which is one of the widely used ATDs in frontal crash test, was designed based on the anthropometry dimensions of US adults. Thus, this paper aims to assess the anthropometric differences between Malaysian adults and Hybrid III dummies in terms of 5th percentile (small female), 50th percentile (midsize male) and 95th percentile (large male). A series of anthropometric parameters of Malaysian adults was obtained from a database of 1321 subjects with 708 males and 613 females. The results revealed that the current midsize male population differs from the ATD’s statures and body weights by about 35 and 40 percentile points, respectively. This demonstrates that the current ATDs are not truly representative of the current Malaysian adults, which may potentially lead to different injury responses in road traffic crashes. Thus, car manufacturers may as well consider this discrepancy issue in developing their future models especially with regards to safety.
    MeSH terms: Adult; Anthropometry*; Humans; Malaysia
  20. Adib Asmawi Mohd Yusoff, Irniza Rasdi, Ahmed S. Mahmoud Ben Hameid, Karmegam Karuppiah
    MyJurnal
    Ergonomic is important in classroom. Sitting for protracted period in class may lead students to develop musculoskeletal disorders. Their physical health and performance in the class may increase by designing school furniture that match with human body. In Malaysia, there is a lack of ergonomic assessment for school environment especially in urban areas. The aim of this study is to determine the mismatch between the furniture dimension and anthropometric parameters among primary school children in Putrajaya. This is a cross-sectional study which involved 100, Year 1 and Year 6 primary school students randomly selected in Putrajaya. Five anthropometric measurements (popliteal height, buttock popliteal length, elbow height, shoulder height (sitting), hip breadth) as well as five furniture dimensions (seat height, seat depth, seat width, backrest height and seat to desk height) were measured. Instrument used is Martin type anthropometer set, SECA body meter, and SECA weighing scale. Calculation for determining mismatch between the furniture and anthropometric measures were calculated using a standard mismatch formula. There was 100% mismatch for seat height, seat depth, and seat to seat to desk height for Year 1. As for Year 6, mismatch was reported 100% for backrest height and seat to desk height. There were significance difference for parameters of popliteal height between Year 1 and Year 6 and between male and female of Year 1. There was a presence of mismatch between furniture dimension and children anthropometric measurement. Proposed dimension of furniture shows decrease in percentage of mismatch for the most parameter of anthropometric measurement.
    MeSH terms: Anthropometry; Buttocks; Child; Cross-Sectional Studies; Elbow; Female; Humans; Interior Design and Furnishings; Malaysia; Male; Musculoskeletal Diseases; Schools; Shoulder; Students; Human Body
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