Displaying publications 1 - 20 of 29 in total

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  1. Fulltext Survey of body part symptoms among workers in a car tyre service centre
    Abd Rahman MN, Aziz FA, Yusuff RM
    J Hum Ergol (Tokyo), 2010 Jun;39(1):53-6.
    PMID: 21922791 DOI: 10.11183/jhe.39.53
    The purpose of this study was to investigate the prevalence of body part symptoms and sources of injury/discomfort among workers in a car tyre service centre. Questionnaire survey and interview session were used to identify the level of body discomfort areas and sources of injury or discomfort. From questionnaire survey findings, 12 of respondents have body discomfort in the neck (66.7%%), shoulder (83.3%), elbow/forearm (75%), hand/wrist (91.7%), knee (58.3%), lower leg (75%), ankle/foot (33%) and lower back (30%). The main sources of injury/discomfort in the workplace were poor body posture (75%), bending the back (75%), highly repetitive motions (75%), lifting heavy objects (83.3%), the long-term standing (66.7%), long-term squatting (58.3%), bending the neck (66.7%) and high hand force (58.3%). About 50% reported that poor workplace design also contributed to injury while 41.7% mentioned the use of hand tools. To address modifying the ergonomic hazards, engineering controls and administrative controls can be used. The study will be useful to ergonomists, researchers, consultants, workshop managers, maintenance workers and others concerned with identifying body part symptoms and sources of injury/discomfort at the workplace.
    Matched MeSH terms: Lifting/adverse effects
  2. Fulltext The effects of anxiety among Selangor weightlifters on performance at the national weightlifting competition
    Ahmad Fazlan Ghazalli, Mahamad Yusof Abdul Rani, Nelfianty Mohd
    Jurnal Sains Sukan & Pendidikan Jasmani, 2017;6(1):45-52.
    MyJurnal
    The purpose of this study examines the effect of Selangor weightlifters concerns over the performance of the National Weightlifting Championship in Johor Bahru 2015. The sample is Selangor weightlifting athletes aged 13 to 15 years who participated in the national weightlifting championship in Johor Bahru. Data were collected through questionnaires Competitive State Anxiety Inventory (CSAI-2) to measure the level of anxiety (cognitive, somatic, self-confidence). The mean value analysis, the percentage used to determine the level of concern for athletes. Correlation tests were used to examine the association between the phases of concern with the performance of athletes during the competition. The results showed the level of anxiety (cognitive, somatic and self-confidence) athletes a day before the tournament is at a moderate level. Other while, cognitive anxiety level significantly correlated with performance or achievement during the tournament. Therefore, the coaches and athletes must continue to concentrate on the concerns of cognitive intentions to achieve excellent performance in a weightlifting tournament in the future. Researchers suggest the management should seek the help of a sports psychologist to provide psychological training for athletes particularly to address the concerns of cognitive as well as physical exercise by periods of sustained exercise.
    Matched MeSH terms: Weight Lifting
  3. Fulltext Contribution of joint angle specificity and movement specificity in gains seen in training weights lifted
    Ahmad Naim Ismail
    Movement Health & Exercise, 2012;1(1):39-48.
    MyJurnal
    The increase in weight-lifting performance after resistance training is greater than the increase seen in maximal voluntary isometric contraction (MVC). This discrepancy has been attributed to learning and coordination. The purpose of the present study was to look into the contribution of joint angle specificity, and the specificity of the movement at various speeds in explaining the disproportionate increase in weightlifting strength compared to isometric strength. Eighteen participants completed the study. The quadriceps muscle group of each individual was trained unilaterally on a leg extension machine. Participants performed four sets of ten lifts at a steady pace. A load of 80% of the maximum load (1RM) was prescribed. The MVC of the quadriceps was measured on a strength-testing chair. The length-tension relationship was measured isometrically at 600, 750, 900, and 1050 of knee flexion. Measurement of isokinetic strength at velocities of 450/s, 1800/s and 300/s were made. All measurements were made before and after the training. The eight weeks training resulted in a 33% increased in weights lifted (p < 0.05) that was significantly greater than the gain in isometric MVC (6%). Significant gains in isometric strength were seen at all the joint angle but with no evidence of length specificity. Although there were significant gains in strength at higher velocities, they were not sufficient to explain the increased weight-lifting performance and, in any case, similar gains were seen with the untrained leg where no improvement in weight-lifting
    performance was seen. From the findings it is concluded that angle and velocity specificity could not fully account for the discrepancy between gains in weight-lifting performance compared to isometric strength.
    Matched MeSH terms: Weight Lifting; Lifting
  4. Fulltext Comparison between two methods of variable resistance training on body composition, muscular strength and functional capacity among untrained males
    Amir Bahram Kashiani, Kim, Geok Soh, Kim, Lam Soh, Swee, Leong Ong, Kittichottipanich, Boonsrin
    Movement Health & Exercise, 2020;9(1):45-66.
    MyJurnal
    Several studies have shown a positive association between variable resistance training (VRT) and improvements in muscular performance. However, the effects of VRT on body composition among untrained individuals remain unclear. The objective of this study was to examine the comparison between of methods of VRT on body composition, muscular strength and functional capacity among untrained male adults. Fifty healthy untrained males (age: 21.5 ± 1.95 years) were selected randomly and assigned into three groups: combined weight and chain (WC), combined weight and elastic band (WE), and free-weight (CG). All three groups completed 12 weeks of high intensity resistance training (70-80% of one-repetition maximum) with three sets of 8-12 repetitions two times per week. Approximately 65% of the whole resistance was provided by free-weights, while the other 35% of the resistance was provided by chains and elastic bands for the WC and WE groups, respectively. Dependent variables including body composition, muscular strength and functional capacity using bioelectrical impedance analyzer, one-repetition maximum and maximum repetitions to muscular fatigue were measured, respectively in pre-test, post-test 1 (week 6) and post-test 2. Significance level was set at P < 0.05. No differences existed among all groups at baseline for depended variables. A mixed model ANOVA with repeated measurements analysis revealed that although there were not significant differences in body composition among the groups (P > 0.05), all groups showed a significant reduction in fat mass and significant increase in fat-free mass during and after the intervention (P = 0.0001), and these differences were insignificantly greater in WE and WC groups compared with CG group. Furthermore, all three groups showed significant improvements in muscular strength and functional capacity during and after intervention (P = 0.0001), and muscular strength and functional capacity were greater in WE and WC groups compared with the CG group, but there were not significant differences in muscular strength and functional capacity between WE and WC groups. However, the WE group showed insignificantly more improvement in muscular strength and functional capacity compared with the WC group during and after the intervention. The results of this study show that VRT has a slightly better effect than free-weight to improve body composition during and after 12 weeks intervention. Also, WE training had a slightly better effect than WC training in improving muscular strength and functional capacity during and after 12 weeks of VRT among untrained male adults.
    Matched MeSH terms: Weight Lifting
  5. Lower back pain and its association with whole-body vibration and manual materials handling among commercial drivers in Sabah
    Awang Lukman K, Jeffree MS, Rampal KG
    Int J Occup Saf Ergon, 2019 Mar;25(1):8-16.
    PMID: 28978270 DOI: 10.1080/10803548.2017.1388571
    A cross-sectional study was undertaken to determine the prevalence of lower back pain (LBP) and its association with whole-body vibration (WBV) and manual materials handling (MMH). We studied 110 commercial vehicle drivers using a self-administered questionnaire and the VI-400Pro human vibration monitor. Prevalence of LBP was 66.4%. The percentage of drivers who had frequent manual handling of heavy loads was 45.5% and those who handled heavy loads in awkward postures accounted for 86.4%. Daily vibration A(8) averaged on the z axis was 0.25 (0.06) m·s-2 and at vector sum was 0.29 (0.07) m·s-2. Daily vibration exposures on the z axis, frequent manual handling of heavy loads and awkward posture during MMH were significantly associated with LBP. Drivers who are exposed to WBV and frequently handle heavy loads manually and with awkward postures probably have more LBP than drivers who are exposed to only one of these risk factors.
    Matched MeSH terms: Lifting/adverse effects*
  6. Fulltext Injury Incidence, Patterns, and Risk Factors in Functional Training Athletes in an Asian Population
    Cheng TTJ, Mansor A, Lim YZ, Hossain Parash MT
    Orthop J Sports Med, 2020 Oct;8(10):2325967120957412.
    PMID: 33195710 DOI: 10.1177/2325967120957412
    Background: Functional training, also known as CrossFit, is a unique sport that combines weightlifting, gymnastics, and metabolic conditioning into a single program. There are an estimated 50 functional training centers in Malaysia.

    Purpose: To analyze the injury rates, patterns, and risk factors of functional training/CrossFit.

    Study Design: Descriptive epidemiology study.

    Methods: Electronic questionnaires were distributed to 244 participants from 15 centers in the country. Descriptive data regarding the athletes, injury occurrence within the past 6 months, injury details, and risk factors were collected.

    Results: Of the 244 athletes, 112 (46%) developed at least 1 new injury over the previous 6 months. Injury rates were significantly higher in athletes from nonaffiliate training gyms compared with CrossFit-affiliated gyms, in athletes with previous injuries, and in those who perceived themselves as having more than average fitness.

    Conclusion: Coaches and athletes need to be more aware of risk factors for injury to enable safer and better training strategies.

    Matched MeSH terms: Weight Lifting
  7. Simulation of southwest monsoon current circulation and temperature in the East Coast of Peninsular Malaysia
    Daryabor F, Tangang F, Liew J
    Sains Malaysiana, 2014;43:389-398.
    This study investigates the southwest monsoon circulation and temperature along the east coast of Peninsular Malaysia by using the Regional Ocean Modeling System at 9 km resolution. The simulated circulation shows strong northward flowing western boundary currents along the east coast of Peninsular Malaysia with maximum speed of approximately of 0.6-0.7 ms-1. The western boundary current, that extends to a depth of about 35 m, continues flowing northward up to approximately 7oN where it changes direction eastward. The circulation along the east coast of Peninsular Malaysia is also characterized by two anti-cyclonic eddies. Furthermore, an elongated of cooler sea surface temperature that stretches along the coast was also simulated. The existence of this cool SST pattern is associated with coastal upwelling process due to localized lifting of isotherms near the coast as a response to the southerly-southwesterly wind stress along the coast during the southwest monsoon.
    Matched MeSH terms: Lifting
  8. Fulltext Psycho-behavioural risks of low back pain in railway workers
    Ganasegeran K, Perianayagam W, Nagaraj P, Al-Dubai SA
    Occup Med (Lond), 2014 Jul;64(5):372-5.
    PMID: 24727561 DOI: 10.1093/occmed/kqu039
    BACKGROUND:
    Low back pain (LBP) is the most costly ailment in the work force. Risky work behaviour and psychological stress are established risk factors.

    AIMS:
    To explore the associations between workplace risk factors, psychological stress and LBP among Malaysian railway workers.

    METHODS:
    A cross-sectional study was carried out on railway workers in Malaysia. Socio-demographics, workplace risk factors for LBP, perceived psychological stress and history of LBP over the previous month were obtained by direct interviews using a structured closed-ended questionnaire. Descriptive, bivariate and logistic regression analyses were conducted.

    RESULTS:
    There were 513 study participants (70% response rate). The prevalence of LBP in the previous month was 69%. Multivariate analysis yielded four significant predictors of LBP: employment of ≥ 10 years, lifting and lowering heavy loads, prolonged standing posture and psychological stress.

    CONCLUSIONS:
    The high prevalence of LBP and its significant associations with physical and psychological stress factors in railway workers points to an urgent need for preventive measures, particularly among workers in high-risk occupations.
    Matched MeSH terms: Lifting
  9. Fulltext Historical perspective on the synonymization of the four major pest species belonging to the Bactrocera dorsalis species complex (Diptera, Tephritidae)
    Hee AK, Wee SL, Nishida R, Ono H, Hendrichs J, Haymer DS, et al.
    Zookeys, 2015.
    PMID: 26798266 DOI: 10.3897/zookeys.540.6028
    An FAO/IAEA-sponsored coordinated research project on integrative taxonomy, involving close to 50 researchers from at least 20 countries, culminated in a significant breakthrough in the recognition that four major pest species, Bactrocera dorsalis, Bactrocera philippinensis, Bactrocera papayae and Bactrocera invadens, belong to the same biological species, Bactrocera dorsalis. The successful conclusion of this initiative is expected to significantly facilitate global agricultural trade, primarily through the lifting of quarantine restrictions that have long affected many countries, especially those in regions such as Asia and Africa that have large potential for fresh fruit and vegetable commodity exports. This work stems from two taxonomic studies: a revision in 1994 that significantly increased the number of described species in the Bactrocera dorsalis species complex; and the description in 2005 of Bactrocera invadens, then newly incursive in Africa. While taxonomically valid species, many biologists considered that these were different names for one biological species. Many disagreements confounded attempts to develop a solution for resolving this taxonomic issue, before the FAO/IAEA project commenced. Crucial to understanding the success of that initiative is an accounting of the historical events and perspectives leading up to the international, multidisciplinary collaborative efforts that successfully achieved the final synonymization. This review highlights the 21 year journey taken to achieve this outcome.
    Matched MeSH terms: Lifting
  10. Fulltext Manual handling process on concrete panel lifting using ergonomic approach
    Hussein Md Zan, Shapie, Sinatu Sadiah, Rahim Ishak, Md Saifuddin Yusop, Seri Rahayu Kama
    Journal of Occupational Safety and Health, 2019;16(2):31-39.
    MyJurnal
    Precast concrete panel is one of the Industrial Building System (IBS) components currently used in modern construction industry, especially, in a highly populated urban area in Malaysia, owing to its cost and time efficiency in a project completion. However, the constraints lie in Musculoskeletal Disorders (MSDs) when IBS workers manually lift the concrete panel repeatedly. The aim of this study is to analyze the recommended weight limit (RWL), lifting index (LI) and physiological experience among workers while lifting precast concrete panel with 3300mm x 600mm size and compressive strength of 40MPa. The methods involved include a survey through the Nordic questionnaires, interview sessions, NIOSH lifting index calculation, recommended work limit calculation, Rapid Upper Limb Assessment (RULA) and video recording. The results yielded the MSDs problem. The guidelines of recommended weight limit and lifting index are produced. They benefit workers and increase their awareness on the MSDs issues.
    Matched MeSH terms: Lifting
  11. Fulltext Rula analysis of work-related musculoskeletal disorder Among polypropylene fibrillated yarn industry worker using Digital human modelling (dhm)
    Kabilmiharbi, N, Selamat, F.E
    Malaysian Journal of Public Health Medicine, 2016;16(101):53-60.
    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.
    Matched MeSH terms: Lifting
  12. Underwater DVI: Simple fingerprint technique for positive identification
    Khoo LS, Hasmi AH, Mahmood MS, Vanezis P
    Forensic Sci Int, 2016 Sep;266:e4-e9.
    PMID: 27567043 DOI: 10.1016/j.forsciint.2016.08.019
    An underwater disaster can be declared when a maritime accident occurred or when an aircraft is plunged into water area, be it ocean, sea or river. Nevertheless, handling of human remains in an underwater recovery operation is often a difficult and demanding task as working conditions may be challenging with poor to no visibility, location of remains at considerable depths and associated hazards from surrounding water. A case of the recent helicopter crash, into a famous river in Sarawak, domiciled by huge crocodiles, is discussed in this paper. Search and recovery team as well as the combat divers from the Special Elite Troop Commando, known as VAT 69, were deployed to the scene to perform the underwater recovery to search for all the victims on board involving five Malaysians with a pilot of Philippines nationality. This paper highlights the limitations and challenges faced during the underwater search and recovery. All the bodies recovered were in moderate decomposition stage with crushed injuries and mutilated face and body. A simple and conventional fingerprint technique were used to record the fingerprint. The prints impressions were later photographed using a smartphone and transferred back to the RMP headquarters in Kuala Lumpur for fingerprint match by using WhatsApp Messenger, a phone application. All the first five victims were identified within an average of 10min. The last victim recovered was the pilot. For foreign nationals, the Immigration Department of Malaysia will record the prints of both index fingers only. The lifting of the fingerprint of the last victim was the most challenging in which only one index finger left that can be used for comparison. A few techniques were attempted using the black printer's ink, glass and tape techniques for the last victim. Subsequently, images of the prints impression were taken using the same smartphone with additional macro lens attached to it to enhance the resolution. The images were transferred to the RMP headquarters through WhatsApp Messenger. The prints were confirmed to be the pilot 20min later.
    Matched MeSH terms: Lifting
  13. Fulltext Partial Annuloplasty Rings in the Repair of Functional Ischemic Mitral Regurgitation
    Kunwar MA, Muhammad I, Khan MN, Sumreen B, Soomro NA, Naseeb K, et al.
    Cureus, 2020 Jun 03;12(6):e8419.
    PMID: 32642335 DOI: 10.7759/cureus.8419
    Background Acute myocardial infarction (MI) is the leading cause of worldwide cardiac morbidities and mortalities. Mitral regurgitation (MR) is a common complication of MI. The severity of ischemic MR (IMR) can range widely, both clinically and hemodynamically. Mitral valve (MV) repair by lifting annuloplasty is a surgical procedure used to correct the pathology of IMR. The immediate outcomes of this technique have not yet been determined. The present study, therefore, evaluated the immediate results of MV annuloplasty performed to complement MV repair in patients with IMR. Methodology All adult patients with IMR who underwent lifting posterior mitral annuloplasty (LPMA) plus concomitant coronary artery bypass grafting (CABG) were included. Immediate outcomes were evaluated by transesophageal color Doppler echocardiography. The frequency of successful outcomes was compared in patients with different baseline characteristics. Results Posterior mitral annuloplasty was successful in 93.1% of patients, including in 92.8% of men and 94.1% of women. The percentages of successful immediate outcomes differed significantly in patients with and without diabetes and hypertension, and in patients with two- and three-vessel disease. Conclusion LPMA resulted in a high percentage of successful immediate outcomes in patients with IMR. Further studies should compare rates of immediate, intermediate, and late outcomes of this technique.
    Matched MeSH terms: Lifting
  14. Fulltext 'Aches and Pains' of Filipino Migrant Workers in Malaysia: A Profile of Work-Related Musculoskeletal Disorders
    Labao HC, Faller EM, Bacayo MFD
    Ann Glob Health, 2018 08 31;84(3):474-480.
    PMID: 30835403 DOI: 10.29024/aogh.2331
    BACKGROUND AND PURPOSE: Musculoskeletal disorders (MSDs) are alarmingly high among migrant workers in Malaysia. MSDs are the most prevalent occupational-related conditions in most parts of the world affecting function, productivity and overall health-related quality of life. Therefore, this study aims to determine the profile of Filipino migrant workers in Malaysia and their various musculoskeletal complaints.

    METHOD: This study utilized a quantitative, nonexperimental, cross-sectional research design. A total of 60 subjects were randomly selected after passing the study's sampling criteria. The Nordic Musculoskeletal Questionnaire (NMQ) was to used to determine common MSDs affecting the various regions in the body. The Demographic Pofile Sheet was provided to gather a subject's demographic characteristics.

    RESULTS: Filipino migrant workers mostly complain of pain in the low back area (60%) and shoulder pain (60%), followed by pain in the upper back (48.3%) and neck pain (45%) in the last 12 months. Household workers accounting for 73.3% of the subjects commonly complain of pain in the hips/thighs (78.9%), while workers in the service industry commonly complain of knee pain (39.1%).

    CONCLUSIONS: Results imply that Filipino migrant workers have a higher prevalence of shoulder and lower back pain in the last 12 months. Household workers are more susceptible to hip/thigh pain. Interventions focusing on ergonomics policy implementation, education on posture and lifting techniques and physical function is recommended. Further studies should consider the psychological and psychosocial aspects of migrant employment, which are known risk factors for MSDs.

    Matched MeSH terms: Lifting
  15. Development of a predictive model for work-relatedness of MSDs among semiconductor back-end workers
    Ling CF, Radin Umar RZ, Ahmad N
    Int J Occup Saf Ergon, 2020 Dec 29.
    PMID: 33096963 DOI: 10.1080/10803548.2020.1840116
    Objective. Limited models are available to predict work-relatedness of musculoskeletal disorders (MSDs) among semiconductor back-end workers. This study aims to develop a model to predict the MSDs development among back-end workers. Method. Potential MSD risk factors were extracted from 277 work compensation investigation reports conducted between 2011-2019. Binary logistic regression approach was used to determine significant predictors. Results. Significant predictors (p 
    Matched MeSH terms: Lifting
  16. Predictors of musculoskeletal discomfort: A cross-cultural comparison between Malaysian and Australian office workers
    Maakip I, Keegel T, Oakman J
    Appl Ergon, 2017 Apr;60:52-57.
    PMID: 28166899 DOI: 10.1016/j.apergo.2016.11.004
    Prevalence and predictors associated with musculoskeletal disorders (MSDs) vary considerably between countries. It is plausible that socio-cultural contexts may contribute to these differences. We conducted a cross-sectional survey with 1184 Malaysian and Australian office workers with the aim to examine predictors associated with MSD discomfort. The 6-month period prevalence of self-reported MSD discomfort for Malaysian office workers was 92.8% and 71.2% among Australian workers. In Malaysia, a model regressing level of musculoskeletal discomfort against possible risk factors was significant overall (F [6, 370] = 17.35; p 
    Matched MeSH terms: Lifting
  17. Fulltext Psychophysical and physiological study of asymmetric lifting and lowering task for Malaysian males
    Mirta Widia, Siti Zawiah Md Dawal, NukmanYusoff
    Malaysian Journal of Public Health Medicine, 2016;16(20):99-105.
    MyJurnal
    Extensive research has been carried out over the years to determine the maximum acceptable weight that a worker is capable of lifting in a given situation among the Occidental populations in the Europe and US. At present, there is a scarcity of studies in which lifting frequency is used as the measuring variable, especially in developing countries such as Malaysia. Therefore, the objective of this study is to determine the effects of lifting loads on the maximum acceptable frequency limit (MAFL), physiological response (muscle activity) and rating of perceived exertion (RPE) for asymmetric lifting and lowering tasks of Malaysian males.Ten male subjects are recruited in this study and they perform asymmetric lifting and lowering tasks repetitively for 30 minutes. Two lifting loads are considered (1) 1 kg and (2) 5 kg. Each of the subjects adjusts his frequency of lifting using a psychophysical approach. The subjects are instructed to perform the lifting and lowering task as fast as they could over duration of 30 minutes without exhausting themselves or becoming overheated. Electromyography (EMG) signals are recorded from four muscles (Right Erector Spinae (RES), Left Erector Spinae (LES), Right Trapezius p Descendenz (RTD) and Left Trapezius p Descendenz (LTD) and analysed in terms of the normalized MVC during asymmetric lifting and lowering tasks. The ratings of perceived exertion (RPE) for four body parts (arms, lower back, shoulders and entire body) are also collected after the subjects have completed the lifting and lowering task. The mean frequency of the lifting and lowering task obtained from the experiment is 13.41 and 9.66 times/minute for a lifting load of 1 and 5 kg, respectively. The results of the independent sample t-test show that load has a statistically significant effect on the maximum acceptable frequency limit (p < 0.05). However, it is found that even though there is an increase in muscle activity and RPE with an increase in lifting load, there is no significant difference in the overall mean muscle activity and RPE (p > 0.05). The percentage decrease in the maximum acceptable frequency for Malaysian males is higher than the Occidental populations for both of the loads investigated in this study.
    Matched MeSH terms: Lifting
  18. Ergonomic study for optimum printing workstation using factorial experiment and response surface methodology
    Mohammad Iqbal, Hartomo Soewardi, Azmi Hassan, Che Hassan Che Haron
    Journal of Occupational Safety and Health, 2004;1(2):42-48.
    MyJurnal
    This paper presents the use of factorial experiments and response surface methodology to determine the best workstation design configuration of an existing electronic industry. The aim is to find the value of physical dimensions that gives the best performance for the workstation. Four performance measures are selected; the cycle time, the metabolic energy expenditure, worker’s posture during the task and lifting limitations. The methodology used in this study consists of two parts. The first part is based on factorial experiments and handles discrete search over combinations of factor-levels for improving the initial solution. In the second part, the solution that was obtained earlier is further refined by changing the continuous factors by using response surface methodology. The result of this optimization study shows that the optimum value of physical dimensions gives a significant improvement for the performance measures of the workstation.
    Matched MeSH terms: Lifting
  19. Fulltext Prevalence and its associated factors of low back pain among foggers in a District Health Office in Malaysia
    Muhamad Farhan Ab Razak, Titi Rahmawati Hamedon, Haidar Rizal Toha
    Malaysian Journal of Medicine and Health Sciences, 2019;15(104):109-109.
    MyJurnal
    Introduction: Low back pain (LBP) is a common symptom among working population worldwide. Foggers prone to have LBP because there are exposed to physical factors such as lifting heavy object, awkward body posture and vibration. However, LBP had never been studied among the fogger. The objective of this study was to determine the prevalence and the factors associated with LBP. Methods: A cross-sectional study was carried out in all District Health Office in Johor, Malaysia by using a validated self-administered questionnaire and anthropometric measure-ments. Chi-square or Fisher’s exact test was used for inferential statistic and multiple logistic regression was used to determine the associated factors. The significance level was determined at p < 0.05. Results: The response rate was 83.9%. Majority of them are male (99.6%), Malay (95.8%), married (85.8%) and educated up to secondary school (53.5%). Majority of respondents do not have part time job (89.6%) but they work overtime everyday (62.7%). Most of them do four hours overtime daily (77.3%). The prevalence of LBP was 68.5% among respondents. There was a significant association between doing part time job, duration of doing overtime per week, body mass index (BMI) and duration of fogging activities. Finally, the associated factors of LBP were doing overtime for more than 20 hours per week (adjusted OR=1.914, 95% CI [1.102, 3.324], p = 0.021), BMI of more than 23.00 kg/m2 (adjusted OR=2.066, 95% CI [1.090, 3.916], p = 0.026) and having no part time job (adjusted OR=0.135, 95% CI [0.031, 0.599], p = 0.021). Conclusion: Prevention needs to be initiated to change the modifiable factors of LBP in order to reduce the prevalence of LBP among them.
    Matched MeSH terms: Lifting
  20. Fulltext Physical activity and low back pain among automotive industry workers in Selangor
    Noor Sazarina Mad Isa @ Yahya, Baba Md Deros, Mazrura Sahani, Ahmad Rasdan Ismail
    Malaysian Journal of Public Health Medicine, 2014;14(2):34-44.
    MyJurnal
    Substantial studies reported musculoskeletal disorders among the working population in the developed country, however, a limited number of studies were conducted in Malaysia. The objective of this cross sectional study was to determine the physical activity risk factors for low back pain among automotive workers in Selangor. Modified Risk Factors Questionnaire (RFQ) was used to assess physical activity with the occurrence of low back pain. The significant physical activities associated with the 12 months point prevalence are lifting weight (
    Matched MeSH terms: Weight Lifting; Lifting
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