MyMedR

Displaying all 5 publications

Abstract:

Sort:

Fulltext Muscle discomfort in prolonged standing among industrial workers

Adriana Abdul Aziz, Karmegam Karuppiah, Velu Perumal, Shamsul Bahri Mohd Tamrin, Enoch Kumar Perimal, Sivasankar S.

Malaysian Journal of Medicine and Health Sciences, 2019;15(103):90-92.
MyJurnal

Prolonged standing has been identified as one of the risk factors which is associated with occupational injuries. Therefore, the primary aim for this study is to determine the association between prolonged standing and muscle dis- comfort among workers who have to stand for long periods of time. A total of 74 respondents were given and asked to complete a self-administered Borg’s Scale questionnaire. After that, the completed questionnaire was analysed using statistical analysis. This study highlighted the correlation between height, weight and age of the respondents with muscle discomfort following exposure to prolonged standing. Besides that, the association between prolonged standing and muscle discomfort also will be highlighted. In short, the prevalence of leg muscle discomfort was higher compared to the muscle discomfort experienced by the other body parts.
Fulltext Ergonomic interventions: comparisons between footrest and anti-fatigue mat in reducing lower leg muscle discomforts during prolonged standing

Noreen Adila Omar, Karmegam Karuppiah, Vivien How, Enoch Kumar Perimal, Sivasankar S., Kulanthayan K. C. Mani

Malaysian Journal of Medicine and Health Sciences, 2019;15(103):116-119.
MyJurnal

Ergonomics is a science focusing on the study of human fit, decreasing human fatigue and discomfort through the design of new product. Prevention related to workers injury and illness such as muscle discomfort is part of the main goals in ergonomics interventions. Thus, this present study investigates the effectiveness of ergonomic interventions such as footrest and floor conditions in reducing workers lower leg muscle discomforts during prolonged standing. The main objective of this study was to determine and compare the lower leg muscles discomfort (exertion percent- age (%)) of Gastrocnemius and Tibialis Anterior among the respondents using the two ergonomic interventions (foot- rest and anti-fatigue mat). About 60 healthy subjects were recruited to stand for 2 hours (120 minutes) while using the two interventions in different session with one week interval between each test session. During standing, lower leg muscle discomfort of Gastrocnemius and Tibialis Anterior muscles were continuously monitored. Changes in lower leg muscle discomforts over standing time were measured using the surface Electromyography (sEMG). In this study, the sEMG readings showed that the percentage of exertion (%) were increasing with time (within 120 minutes) on muscles for both legs with the usage of the interventions (footrest and anti-fatigue mat). However, the percentage of exertion (%) from the sEMG readings were lower compared to previous studies. The independent t-test was used to find the mean changes on exertion percentage (%) between each muscles of both legs for the two interventions. Results found that there were significant exertion percentage at certain time with 15 minutes time period within the 120 minutes standing. This study showed that the ergonomic interventions (anti-fatigue mat and footrest) gives a low number of exertion percentage (%), showing a reduced muscle discomfort to the lower leg muscles compared to previous studies and interventions. In comparisons with footrest, this study showed that anti-fatigue mat is more applicable for the assembly workers in the industrial factory. The data produced by the comparisons between the two interventions can be useful especially to the Department of Occupational Safety and Health Malaysia (DOSH) in enhancing the safety and wellbeing of industrial workers in Malaysia.
Fulltext A review: muscle discomfort of police officers in vehicles

Nur Athirah Diyana, Irniza Rasdi, Vivian How, Karmegam Karuppiah, Shamsul Bahri Mohd Tamrin, Sivasankar S., et al.

Malaysian Journal of Medicine and Health Sciences, 2019;15(103):96-98.
MyJurnal

This paper studies the muscle discomfort among police officers when carrying out their work. The objective of this study is to give a basic introduction of ergonomic problems in among police officers and risk controls in relation to minimize the ergonomics risk factors. This paper gives quick review of muscle discomfort problems and prevalence of musculoskeletal disorders (MSD) among police officer. An ergonomic application has been purposed in the liter- ature to solve the problem related with design of mechanical.
Safety system for child pillion riders of underbone motorcycles in Malaysia

Sivasankar S, Karmegam K, Bahri MT, Naeini HS, Kulanthayan S

Traffic Inj Prev, 2014;15(6):564-71.
PMID: 24484430 DOI: 10.1080/15389588.2013.861596

Motorcycles are a common mode of transport for most Malaysians. Underbone motorcycles are one of the most common types of motorcycle used in Malaysia due to their affordable price and ease of use, especially in heavy traffic in the major cities. In Malaysia, it is common to see a young or child pillion rider clinging on to an adult at the front of the motorcycle. One of the main issues facing young pillion riders is that their safety is often not taken into account when they are riding on a motorcycle. This article reviews the legally available systems in child safety for underbone motorcycles in Malaysia while putting forth the need for a safety system for child pillion riders.
Impacts of PM2.5 on respiratory system among traffic policemen

Putri Anis Syahira MJ, Karmegam K, Nur Athirah Diyana MY, Irniza R, Shamsul Bahri MT, Vivien H, et al.

Work, 2020;66(1):25-29.
PMID: 32417810 DOI: 10.3233/WOR-203147

BACKGROUND: Malaysian traffic policemen are constantly exposed to unhealthy air in the outdoor environment, which results in various health problems. This study investigates the relationship of the personal exposure level to PM2.5 and lung functions in traffic policemen in Kuala Lumpur and Johor Bahru.
METHODS: A pulmonary function test using a spirometer was carried out to measure the lung function of the traffic policemen. The personal exposure level to PM2.5 was measured using a pump with a PVC filter and 5.0μm pore size. A questionnaire requesting the background data, such as age, height, and weight, was also used for testing lung function abnormalities.
RESULTS: The PM2.5 personal exposure level was found to be significantly related to lung function (predicted FEV1 and predicted FVC) at p-value