Friday, February 13, 2009


The Worker(W) or Human as the primary tool of business has limited capability in term of their physical, mental and physiology. Human physical is formed by muscle, bone, nerve, tendon, ligaments and joints. In anatomy, it is called Musculoskeletal System. So the worker is basically the Musculoskeletal system. Our physical measurements are fixed. We cannot increase our height, the length of our upper and lower limbs etc, although we can increase our weight which can gives burden to our body if it is above the ideal body weight. Human has physical variation. The study of human physical measurements and its variation is called Anthropometry. The developed countries like US has their own anthropometric table. The muscle and joint has its movement limitation. This is the focus of study in the Biomechanic field. The study of how human body functions is called physiology
Inorder to understand human limited capability, we need to have some knowledge in Anthropometry, Biomechanics, Anatomy, Physiology and also Pyschology.
What is the indicator to say that the human limited capability is overburdened by the factors existed in the work environment? 
Generally, we can say that when the safety and health of the human is affected, there is a factor in the environment causing it. To be specific, from ergonomics perspective, if the human or worker suffers from Musculoskeletal disorder(MSDs), there is always a physical overburden created by his work environment.
God The AlMighty had created human with this limited capability and we cannot change it. The only thing we can change is what we have created in our work environment : - the workplace design and the work (job & task) arrangement, i.e. the second component of the worker-work environment (W-WE) ecosystem.

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