1.A Regression Model of Hip Flexion Force of the Dominant Leg Among Malaysian Adults in Standing Posture
Isa Halim1 ; Zulkeflee Abdullah1 ; Nurul Wirdah Mafazi1 ; Muhammad Nadzirul Izzat Mahadzir1 ; Mohd Shahir Kasim2 ; Adi Saptari3
Malaysian Journal of Medicine and Health Sciences 2025;21(No. 1):91-102
Introduction: The disregard for hip flexion force when designing foot-operated equipment poses a potential threat
to non-compliance with ergonomics principles, ultimately impacting occupational health. Nevertheless, there is a
noticeable lack of studies focusing on the hip flexion strength of Malaysian adults in a standing position. This paper
aimed to measure the maximum force of hip flexion strength and formulate a regression model for Malaysian young
adults in a standing posture. Materials and methods: The experiment invited sixty Malaysian adults aged 20 to 26
years old. A digital force gauge (Mark-10, USA) was used to measure the hip flexion force. A regression model was
developed to determine the influence of gender, body mass, body height, thigh length, and thigh circumference on
the hip flexion force. Results: The results of this study found that the means of hip flexion force for the male and
female participants were 192.8 N and 126.0 N, respectively. The regression model concluded that gender is the
most significant factor influencing hip flexion force (p<0.01). The body mass, body height, thigh length, and thigh
circumference positively correlate to hip flexion force. However, these correlations were not statistically significant
(p>0.05). Conclusion: This study concluded that the relationship between anthropometric parameters and hip flexion
force is not always straightforward and can be influenced by various factors. To gain a more comprehensive picture
of hip flexion, it is essential to consider other potential factors such as muscle mass, neuromuscular control, and joint
mechanics.
2.The Agreement between State-Trait-Anxiety-Inventory (STAI) and Beck Anxiety Inventory (BAI) on Measuring Anxiety Level Among Adult Patients Before Venepuncture Procedure
Izzaty Dalawi ; Mohamad Rodi Isa ; Faizul Haris Mohd Hatta ; Muhammad Fairuz Rahmat
Malaysian Journal of Medicine and Health Sciences 2023;19(No.3):254-261
Introduction: Venepuncture procedure is painful and anxiety associated with venepuncture is common. There are
many tools for assessing anxiety levels in an outpatient setting. Hence, this study is to compare the degree of agreement between State-Trait-Anxiety-Inventory (STAI) and Beck Anxiety Inventory (BAI) for measuring anxiety levels
among adult patients before venepuncture procedure. Methods: A cross-sectional pilot study was conducted among
patients while waiting for a venepuncture procedure in the Phlebotomy Unit, UiTMMC in April 2020. The Malay-validated version of the State-Trait-Anxiety-Inventory (STAI) and Beck Anxiety Inventory (BAI) were used to assess the anxiety level. Differences between sets of data were plotted as described by Bland-Altman to determine the
agreement between these two assessment tools. Results: A total of 330 patients participated in the study with a mean
age of 46.34 ± 14.34 years old and gender was equally distributed. The scores of state-anxiety (STAI-S), trait-anxiety
(STAI-T) and BAI score were 30.04 ± 20.74; 29.51 ± 19.11; and 40.98 ± 20.45, respectively. The score of anxiety
using BAI was higher compared to STAI-S (p<0.001) and STAI-T (p<0.001). The mean difference between the STAI-S
and BAI was -10.94 (95%CI: -53.01, 26.87) and between the STAI-T and BAI was -11.47 (95%CI: -42.26, 19.32).
However, very few patients’ scores outside the 95% LOA for both differences. Conclusion: The STAI and BAI are concordances in measuring anxiety levels among these patients. However, the anxiety score using BAI was higher than
STAI. Thus, both assessment tools can be used in clinical practice in measuring anxiety in the out-patients setting.
3.A Review on Ergonomics Factors Determining Working in Harmony with Exoskeletons
Isa Halim ; Muhammad Nadzirul Izzat Mahadzir ; Zulkeflee Abdullah ; Muhammad Zaimi Zainal Abidin ; Mohd Nazrin Muhammad ; Adi Saptari
Malaysian Journal of Medicine and Health Sciences 2023;19(No.6):311-327
Exoskeletons are wearable devices that can enhance human strength and are used in various fields, such as healthcare and the manufacturing industry. However, poorly designed exoskeletons can strain the muscles and cause injuries to users. The objectives of this review paper are to review the ergonomics factors that contribute to a harmonious
user-exoskeleton interaction and to explore the current trends, challenges, and future directions for developing ergonomically designed exoskeletons. In this review, 102 relevant papers published from 2015 to 2023 were retrieved
from Web of Science, Scopus, and Google Scholar. These papers were considered in the analysis for gathering relevant information on the topic. The authors identified six ergonomics factors, namely kinematic compatibility, contact
pressure, postural control, metabolic cost, cognitive workload, as well as task demands and workplace conditions,
that can influence the interaction between users and exoskeletons. By understanding and addressing these ergonomics factors during the design and development process, exoskeleton designers can enhance the user experience and
adoption of the devices in daily living activities and industrial applications.
4.Evaluation of beak and feather disease virus, avian polyomavirus and avian papillomavirus of captives psittacine birds in Seri Kembangan, Selangor, Malaysia
Muhammad Faiz Mohd Padzil ; Nur Syafiqah Ab Halim ; Nurulhuda Najihah ; Aminuddin Baki Nurul Najian ; Jalila Abu ; Nurulfiza Mat Isa ; Han Yih Lau ; Abdul Razak Mariatulqabtiah
Malaysian Journal of Microbiology 2021;17(3):338-344
Aims:
Psittacine birds such as parrots, macaws, cockatoos, lovebirds and parakeets, are widely reared as household
pets or at aviary due to their attractive features. However, the status of virus-causing diseases of psittacine species in
Malaysia is fairly under-documented. Therefore, this study was aimed to detect the presence of three common avian
viruses that infect psittacine birds, i.e. beak and feather disease virus (BFDV), avian polyomavirus and avian
papillomavirus.
Methodology and results:
Faecal samples from twelve asymptomatic captive psittacine birds of different species were
collected from an undisclosed animal garden in Serdang, Selangor, Malaysia. Briefly, the sample was homogenised and
resuspended with SM buffer with the ratio 1:1 (weight of sample/g: volume of SM buffer/mL) before centrifugation at
1,000 × g for 20 min. The supernatant was collected and filtered before subjected to genomic DNA extraction using a
commercialised kit. Polymerase chain reaction (PCR) technique was used to screen the V1, VP1 and L1 genes of beak
and feather disease virus (BFDV), avian polyomavirus and avian papillomavirus, respectively. Findings revealed that the
samples were negative for BFDV and avian polyomavirus. However, positive results of 1.5 kbp PCR amplicon were
detected for avian papillomavirus in four out of the 12 samples (33.33%), which was from the white-crested cockatoo,
African grey parrot, yellow-collared macaw and Senegal parrot. Sequence analysis of the L1 gene from the Senegal
parrot Poicephalus senegalus revealed 93% identity to a reference Psittacus erithacus timneh avian papillomavirus.
Conclusion, significance and impact of study
This study added to the limited prevalence data of three important
avian viruses which infect captive psittacines in Seri Kembangan, Selangor, Malaysia. Avian papillomavirus, but not
BFDV and avian polyomavirus, was detected in the collected captive psittacine birds. Therefore, a routine screening can
be performed to monitor the health status of birds despite their asymptomatic manifestation, in order to prevent possible
virus transmission.
Virus Diseases
;
Birds
5.Associations Between Knowledge on Optimal Control of Serum Phosphate, Perceived Social Support, Dietary Phosphorus Intake and Phosphate Compliance Among Hemodialysis Patients
Muhammad Darwish Asyraf Mohd Isa ; Fiona Jie Wei Lai ; Shen Yi Chong ; Nur Amrina Rasyada Ismail ; Kar Fei Chan ; Yoke Mun Chan
Malaysian Journal of Medicine and Health Sciences 2020;16(Supp 6, Aug):140-147
Introduction: Hyperphosphatemia is common among hemodialysis patients, often accompanies with unfavourable clinical outcomes. Several factors affect phosphate compliance among hemodialysis patients, with lack of such information at the local context. Thus, this cross-sectional study aimed to determine the associations of sociodemographic factors, knowledge on optimal control of serum phosphate, perceived social support from family, dietary phosphorus intake and phosphate compliance among hemodialysis patients. Methods: Structured questionnaire was used to obtain information on socioeconomic factors, knowledge, family social support and dietary phosphorus intakes of hemodialysis patients, with serum phosphate level was used as the surrogate marker for phosphate compliance. Results: A total of 76 patients (Mean age of 52 years old) were recruited. Hyperphosphatemia was prevalent with approximately 60% of the patients failed to achieve the target. Approximately 90% of the patients perceived low level of family social support. Young patients had significant higher serum phosphate compared to their older counterparts (r = -0.297, p =0.009). Serum phosphate was positively correlated with dietary intake of phosphorus, dialysis vintage (r = 0.301, p = 0.006) and comorbidity score (r = 0.325, p = 0.008) while negatively correlated with dialysis dose (r = -0.582, p = 0.002) and family social support (r = -0.263, p = 0.024). Conclusion: The promising role of dietary phosphorus intake in managing hyperphosphatemia deserves further attention. Innovative approaches are needed to promote self-adherence on serum phosphate especially the younger patients. It is imperative to promote family social support in the management of hyperphosphatemia among hemodialysis patients.
6.Characteristics Of Visually Impaired Children Aged Below 4 Years In Two Public Tertiary Hospitals In Selangor, Malaysia
Victor Feizal KNIGHT ; Nurhafizah Muhd KHAIRI ; Rokiah OMAR ; Azura RAMLEE ; Muhammad Mohd ISA
Malaysian Journal of Public Health Medicine 2018;Special Volume(1):18-25
The purpose of this study is to determine the prevalence and causes of visually impairment among children below 4 years old in two public tertiary referral hospitals in Selangor, Malaysia. In this cross-sectional retrospective study, the case files of all children aged below 4 years from the ophthalmology clinics in two separate public hospitals in Selangor, Malaysia were analysed over a 5-year period. The definition of visual impairment was based on the World Health Organization (WHO) classification, i.e. moderate visual impairment: visual acuity <6/18 to 6/60 in the better eye; severe visual impairment: <6/60 to 3/60 in the better eye; and blindness: visual acuity <3/60 in the better eye. Prevalence of visual impairment was based on the presenting visual acuity and then differentiated according to the cause of visual impairment diagnosed. A total of 243 (17.38%) children from a total of 1,398 children were classified as visually impaired. Most of these children (n=119, 49.0%) exhibited moderate visual impairment, 26 (10.7%) had severe visual impairment, while 98 (40.3%) were blind. Refractive errors (n=60, 24.7%) were the most common cause of vision impairment, mostly myopes (n=28, 46.7 %). This was followed by strabismus (n=31, 12.8%) and retinopathy of prematurity (n=29, 11.9%). In conclusion, vision impairment was prevalent in children aged below 4 years old presenting to two ophthalmology clinics in a highly urbanised region in Malaysia. High refractive errors were the major cause of vision impairment seen. Our study highlights the need and utmost importance of an early intervention programme to be implemented for these children since the main cause of vision impairment found in this study is an easily treated problem.
7.Characteristics Of Visually Impaired Children Aged Below 4 Years In Two Public Tertiary Hospitals In Selangor, Malaysia
Victor Feizal Knight ; Nurhafizah Muhd Khairi ; Rokiah Omar ; Azura Ramlee ; Muhammad Mohd Isa
Malaysian Journal of Public Health Medicine 2018;18(Special Volume (1)):18-25
The purpose of this study is to determine the prevalence and causes of visually impairment among children below 4 years old in two public tertiary referral hospitals in Selangor, Malaysia. In this cross-sectional retrospective study, the case files of all children aged below 4 years from the ophthalmology clinics in two separate public hospitals in Selangor, Malaysia were analysed over a 5-year period. The definition of visual impairment was based on the World Health Organization (WHO) classification, i.e. moderate visual impairment: visual acuity <6/18 to 6/60 in the better eye; severe visual impairment: <6/60 to 3/60 in the better eye; and blindness: visual acuity <3/60 in the better eye. Prevalence of visual impairment was based on the presenting visual acuity and then differentiated according to the cause of visual impairment diagnosed. A total of 243 (17.38%) children from a total of 1,398 children were classified as visually impaired. Most of these children (n=119, 49.0%) exhibited moderate visual impairment, 26 (10.7%) had severe visual impairment, while 98 (40.3%) were blind. Refractive errors (n=60, 24.7%) were the most common cause of vision impairment, mostly myopes (n=28, 46.7 %). This was followed by strabismus (n=31, 12.8%) and retinopathy of prematurity (n=29, 11.9%). In conclusion, vision impairment was prevalent in children aged below 4 years old presenting to two ophthalmology clinics in a highly urbanised region in Malaysia. High refractive errors were the major cause of vision impairment seen. Our study highlights the need and utmost importance of an early intervention programme to be implemented for these children since the main cause of vision impairment found in this study is an easily treated problem.
visual impairment
;
prevalence
;
children
;
blindness
8.The Association of Parent Education and Family Monthly Income on Intelligence Quotient (IQ) among Students with Special Needs in Kelantan, Malaysia
Muhammad Faiz Mohd Ismail ; Ismarulyusda Ishak ; Normah Che Din ; Syarif Husin Lubis ; Nur Zakiah Mohd Saat ; Siti Nor Ismalina Isa
Malaysian Journal of Health Sciences 2017;15(1):105-111
This paper investigate the effect of parents’ education background and family monthly income on the Intelligence Quotient (IQ) of students with special needs in Kelantan, Malaysia. This cross-sectional method study was employed multistage random sampling to obtain information drawn from 130 participants from 10 selected school in Kelantan, Malaysia. Questionnaire was used to obtain parents’ education background, family monthly income and demographic variables. Students IQ were assessed using Comprehensive Test for Non-Verbal Intelligence (CTONI 2nd Edition). Data analysis involve independent sample t-test, one-way between group ANOVA, Pearson’s correlation and multiple linear regression. From analysis of IQ score, 63.8% of the special needs students scored very poor IQ, 12.3% scored below average and only 1.5% score average IQ. Significant mean difference were revealed between age group (p = 0.002), parents’ education (p = 0.018) and family monthly income (p < 0.05) on special needs students IQ. Post-hoc tukey shows significance between parents who never went to school, went to secondary school (p = 0.037) and university/college (p = 0.021). In term of family monthly income, significance difference were found between family with low and high monthly income (p < 0.05). Family monthly income (r = 0.393, p < 0.01) showed positive moderate correlation on special needs students IQ. After being forwarded by multiple linear regression, it was found that family monthly income (B = 3.605, p < 0.05) and age group of special needs students (B = 0.879, p = 0.002) were significant predictor for IQ score and explained 22.5% of the variance (R2 = 0.225, F (5,124) = 83.94, p < 0.05. Overally, majority of special needs students in current study have very poor IQ score. Further explanation are discussed on the paper.
9.An 8-year Retrospective Review of Microbial Keratitis in A Secondary Referral Centre in Malaysia.
Nazri Omar ; Maimunah Abdul Muna’aim ; Rafidah Md. Saleh ; Muhammad Mohd. Isa
Malaysian Journal of Medicine and Health Sciences 2017;13(2):47-57
Introduction: Microbial keratitis (MK) is an important cause for corneal blindness and understanding its risk factors
enable us to improve management and minimise its complications. Methods: In this retrospective case review,
medical records of all patients treated for MK from 2006 to 2013 was analysed to know the socio-demography,
preceding risk factors, clinical characteristics, causative organisms and final visual outcome. Results: A total of 174
patients (180 eyes) were included in this study. Identifiable ocular risk factors included contact lens (CL) usage (85,
47.2%), ocular trauma (50, 27.8%), ocular surface disease (21, 11.6%), steroid use (6, 3.3%) and immuno-compromy
(19, 10.5%). Association factors for presenting uncorrected visual acuity (UCVA) were age group (p=0.013), size
(p<0.001), location (p<0.001) and hypopyon (p<0.001). The predictors for final best spectacle-corrected visual
acuity (BSCVA) were age group (p<0.001), nationality (p=0.020), occupation (p<0.001), CL use (p<0.001), ocular
surface disease (p=0.048), size (p<0.001) and location (p<0.044), hospitalisation duration (p=0.002) and presenting
UCVA (p<0.001). Conclusions: Contact lens was the most frequent predisposing risk factor for microbial keratitis,
followed by ocular trauma. Understanding the association factors for presenting vision and predictors for final vision
may help in the patients’ management and improve eventual outcome of microbial keratitis.
10.Perceived Stress and Coping Styles among Malay Caregivers of Children with Learning Disabilities in Kelantan
Siti Nor Ismalina Isa ; Ismarulyusda Ishak ; Nur Zakiah Mohd Saat ; Normah Che Din ; Syarif Husin Lubis ; Muhammad Faiz Mohd Ismail
Malaysian Journal of Medical Sciences 2017;24(1):81-93
Background: Caregivers of children with learning disabilities have been shown to
experience increased stress and greater negative caregiving consequences than those with
typically developing children. There remains a lack of studies focusing on stress and coping
mechanisms among caregivers of a wider age group and diagnosis of individuals with disabilities
in Asian countries. The current study examines levels of perceived stress and associated child
and caregiver factors among caregivers of children with learning disabilities in the Malaysian
context. An additional aim was to determine whether caregiver coping styles may be predictors of
perceived stress. Methods: The Malay version of the Perceived Stress Scale with 10 items and the
Brief COPE Scale were administered to a sample of 190 Malay caregivers of children with learning
disabilities registered with community-based rehabilitation centres in Kelantan, a state in
Peninsular Malaysia. Multiple linear regression analysis was applied to determine the predictors
of perceived stress. Results: The mean total perceived stress score of caregivers was 16.96 (SD
= 4.66). The most frequently used coping styles found among caregivers included religion,
acceptance and positive reframing, while substance use and behavioural disengagement were
least frequently used. Higher perceived stress was significantly predicted among caregivers with
fewer children, frequent use of instrumental support and behavioural disengagement coping, and
lack of emotional support and religious coping. Conclusion: Findings indicate that the perceived
stress levels among caregivers were significantly predicted by different coping styles. It is vital to
help the caregivers improve their good coping styles in order to reduce their stress levels.


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