Ergonomics & Physiology

Background:

The Domains of specialization within the discipline of ergonomics are broadly the following:

1) Physical Ergonomics.

2) Cognitive ergonomics.

3) Organizational Ergonomics.

Physical ergonomics is concerned with human anatomical, anthropometric, physiological and biomechanical characteristics as they relate to physical activity. Human physiology is the science of the mechanical, physical, and biochemical function of humans, and serves as the foundation of modern medicine. As a discipline, it connects science, medicine, and health, and creates a framework for understanding how the human body adapts to stresses, physical activity, and disease. It may be a good initiative to monitor the stress levels of a workforce for the purpose of managing better support by design or planning. Measurement methods exist to somehow quantify stress levels, motivation, engagement, etc. Attempts have been made to capture a holistic measurement of task workload, including both the task-related and the psychosocial aspects. The NASA-TLX scale is such a holistic measurement tool.

Requirements:

1) When metabolism is measured by the rate of oxygen consumed, the metabolic rate increases rapidly at the onset of a physical task in an exponential fashion to meet the task requirements. Describe briefly what happens to the metabolic rate immediately after the individual stops performing the task and rests. Explain how this change in metabolic rate affects the design of jobs and job requirements.

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