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Anthropometry

Anthropometry. Homework. Read Stack Chapter 3 Study the Review Questions on p. 74 Complete HW Anthro from the course website. Questions. How tall are people nowadays? How far can we reach? How high do we sit? How strongly can we push with a hand or foot?

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Anthropometry

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  1. Anthropometry

  2. Homework • Read Stack Chapter 3 • Study the Review Questions on p. 74 • Complete HW Anthro from the course website.

  3. Questions • How tall are people nowadays? • How far can we reach? • How high do we sit? • How strongly can we push with a hand or foot? • How does the body develop strength? • What are our work capabilities? • Can we use this knowledge to make work easy and effective?

  4. Human Variability • Size • Range of Motion • Strength • Endurance • Stress tolerance • Intelligence • Dexterity • etc.

  5. Selection vs. Job Modification • Assume a heavy box must be moved from Point A to Point B • Selection: Select a strong person (Fit the Person to the Job) • Job Modification: Redesign the job so almost anyone can do it (split the load, MMH aid) (Fit the Job to the Person)

  6. Job Design • Try to maximize the population accommodation • But, account for the additional cost that may be incurred • Do we want to design a fighter plane to accommodate a 6’10” pilot?

  7. Anthropometry • The measure of humans • Demonstration

  8. The Story of Lacy and Andrew • Does one size fit all? • Lacy is 4’ 10” (147 cm) • Andrew is 6’ 10” (208 cm)

  9. Love conquers all – even anthropometry!

  10. Normal Distribution

  11. Anthropometric Design Principles • Designing for the average • Typical or default • McDonalds seating • Designing for the extremes • Doorways, reach distances • Designing for the range • 5th %tile female to 95 %tile male • 5’ female to 6’ 2” male • ADJUSTABILITY!

  12. Functional Anthropometric Data • Adjustments/Allowances to nude data: • shoe sole: add 1” males, 0.6” females; 2 lb • clothing increases torso breadth by 0.3”; torso circumference by 0.6”; 1 lb

  13. Anthropometry Problem #1 • Dr. Kerk is 6’1” tall. What percentile is his stature among US Adult males?

  14. Anthropometry Problem #2 • What percentage of US Adult females are taller than 5’ tall?

  15. Design Problem • Design the vertical adjustment range for a horizontal standing work surface that will accommodate knuckle height to elbow height for 95% of US Adult males and females.

  16. Homework • Read Stack Chapter 3 • Study the Review Questions on p. 74 • Complete HW Anthro from the course website.

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