Displaying all 4 publications

  1. Raemy Md. Zein, Noorul Azreen Azis, Isa Halim, Adi Saptari, Seri Rahayu Kamat
    Working in a safe working posture is a necessity to enhance occupational health of industrial workers. Poor
    working posture may lead to injuries, discomfort and fatigue to the workers. The objective of this study is to survey the
    postures practised by the Malaysian industrial workers. A questionnaire survey was performed among 282 Malaysian
    industrial workers in 10 different industries. From the answered questionnaire, it was observed that shoulder at chest
    level (30.1%), back in a bent forward (33.3%) and lifting heavy load (44.7%) are the major work postures practised by
    most of industrial workers. This survey identifies that working with shoulder and hand at chest level and back region
    moderately bent forward is the main working posture practice by worker. Workers also reported lifting load below 5 kg
    at the workstation. This survey recommended for industrial workers to be aware of the comfortable working posture
    to avoid injury.
  2. Mohd Fa'iz Wahid, Seri Rahayu Kamat, Syamimi Shamsuddin, Dian Darina Indah Daruis
    This paper reviews various papers since the year 2000 until 2016 regarding visual technology in human anthropometry
    study, and discusses three major points; (1) the methods and objectives of the research, (2) the subjects of the
    experiments and (3) body parts involved in the anthropometrical measurements. Measurement using visual
    technology is claimed to be more accurate in obtaining anthropometrical data compared to the conventional method
    using manual tools. However, commercial visual technology system can be very costly. Based on the reviewed
    studies, a significant amount of research has adopted various visual processing methods to predict the human’s body
    measurement. All of the studies utilized the applications of enhanced technologies that are able to reduce time and
    human errors that normally occur during traditional hand-operated measurement. Usually, in order to prove that
    their result is promising, the studies compared their results with the results gained from manual measurement. The
    finding from this review is a preliminary step towards developing a camera-based system in anthropometry
    measurement for the use in automotive ergonomics design.
  3. Noor'Ain Azizan, Seri Rahayu Kamat, Nur Syafiqah Rayme, Ruzy Haryati Hambali
    Repetitive movement can lead to the pain muscle, nerves, and tendons that cause by
    repetitive overuse of working task. The muscle will fatigue due to; repetitive
    movement, force that been applied, posture during working and duration of working.
    The stress level during working can influent the energy performance usage during
    working. The aim of this paper is to analyse the influence of heart rate and muscle
    activity of workers in composite manufacturing towards muscle fatigue. The data was
    collected for a worker in hand layup department and the Qualitative method was used
    in a way to investigate the working load and level of pain received by their body. Then,
    the Qualitative data was sorted and the respondent proceeded for a Quantitative
    method which involves muscle activity analysis and heart rate analysis. The tools that
    were used to conduct these experiments were surface electromyography (sEMG),
    Wristwatch with chest strap and perceived stress scale (PSS). The experimentation
    used to calculate the average reading of heart rate and muscle activity during working
    and detect the duration the muscle to start fatigue. Moreover, this paper analysed the
    relationship between heart rate and muscle activity through the duration of working.
    As an overall finding of this research, it was shown that the heart rate of the workers
    influence the muscle activity of workers and has high potential relationship to the
    fatigue of muscles of the workers in the layup department.
  4. Ahmad Nawawi Mohd Amin, Wan Hasrulnizzam Wan Mahmood, Seri Rahayu Kamat, Ilyana Abdullah
    The purpose of this paper is to prepare a conceptual framework of hybrid lean and ergonomics for assembly manufacturing process based. The research used PDCA approach as a basis in linking the relationship between lean manufacturing and ergonomics. Comprehensive literature review identify the lean ergonomics issues, best practices, and also the way to improve the ergonomic conditions in the workplace, especially those impacting employees on the assembly process. The findings show that the job design strategies for reducing extreme injuries influence by repetitive tasks. Selections of lean tools and technique, human factors analysis and lean performance measure are the key point on the stages of the PDCA conceptual framework for lean ergonomics in working assembly process. This paper also demonstrates by continuous improvement applied between the elimination of waste and increased productivity and the impacts on the ergonomic conditions to carry out operations and consequently by improving the productivity and well-being of its employees based on implementation of PDCA conceptual frameworks.
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