work physiology in ergonomics

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IEGR 360 Ergonomics and Workplace Design Fall 2017 Assignment VI Due: 10/19/2017 Chapter 5: Work Physiology 1. Explain “oxygen debt” and “oxygen payback” in the oxygen uptake profile of human body. 2. Describe the importance of using empirical formula for estimating maximum heart rate. Why do not we assess the actual value instead of estimating it? 3. A male and female both 35 years old, have oxygen uptake value of 32.0 mL/kg-min. Determine their aerobic fitness and explain why there is a difference in the fitness level. 4. Change the values in Example 5.1 to the following and solve: Workload Heart Rate (bpm) VO2 (L/min.) 1 115 1.5 2 125 1.8 3 135 2.5 5. A male 30 years old and weighing X lbs has the same data as in (4) above. If his PWCLBW is 35.00 mL/kg-min, find the value of X. 6. A female X years old and weighing 150 lbs has the same oxygen profile as in (4) above with estimated heart rate of 185 bpm. What is her age? 7. A male employee 38 years old has his HR elevated to 160 bpm while performing a task. If a maximum of 50% of maximum estimated HR is acceptable, do you consider the task suitable for the employee? 8. Find the endurance time (ET) for an individual with PWC of 3.5 L/min performing a task requiring 5.5 l/min 9. If a given task energy requirements are 5 Kcal/min and an individual’s resting requirements are 2.5 Kcal/min, find work/rest periods for an eight-hour work shift.
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Hello, thank you for your patience, the work was captivating and i have tried to use your books as you had requested to answer the questions. Its my hope it will meet your expectations. God bless you.Regard Tabanna.

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ERGONOMICS AND WORKPLACE DESIGN.
1. Oxygen debt is the deficit in oxygen caused by instantaneous increase in energy requirement at the
start of a strenuous activity. The oxygen uptake increase gradually from the start of the activity to
keep up with the energy requirement of...


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