Exam (elaborations)
AN 3203 – SOFT TISSUE LOADING AND ERGONOMICS EXAM QUESTIONS AND VERIFIED ANSWERS
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AN 3203 – SOFT TISSUE LOADING AND ERGONOMICS EXAM QUESTIONS AND VERIFIED ANSWERS...
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AN 3203 – SOFT TISSUE LOADING AND ERGONOMICSEXAM QUESTIONS AND VERIFIED ANSWERS
List 5 Factors in tissue loading that can lead to damage and injury: -
ANSWER 1. Load
2. Duration
3. Repetition
4. Rest period
5. Anthropometry
Conventions of static anthropometry are in one of two dimensions -
ANSWER 1. Sagittal view (looking at left or right side) or
2. Coronal view (looking at front or back)
Two standard postures - ANSWER 1. Standing, hands relaxed at side
2. Seated
-Erect, thighs parallel to floor, knees at 90 degrees, feet flat on floor
-Upper arm perpendicular to horizontal, elbow right angle
-Most joints (ankles, knees, hips, elbows) at 90 degrees
Anthropometry - List 7 Features of Standing - ANSWER 1.Stature:
vertical distance from the floor to the crown of the head. (clearance)
2.Eye height: vertical distance from the floor to the inner corner of the
eye (most important items at this level)
3.Shoulder height: vertical distance from the floor to the acromion of the
shoulder.
4.Elbow height: vertical distance from the floor to the olecranon process
of the elbow. (counters & standing desks)
5.Hip Height: vertical distance from the floor to the greater trochanter
6.Knuckle height: vertical distance from the floor to the knuckle of the
third metacarpal. (belt items)
, 7.Finger tip height: vertical distance from the floor to the tip of the 3rd
digit
Why would you want to know the following when designing a
workstation? - ANSWER 9. Sitting eye height
11. Sitting elbow height
12. Thigh thickness
14. Buttock-popliteal length
16. Popliteal height
17. Shoulder breadth
18. Hip breadth
22. Shoulder-grip length
Anthropometry - List the Features of Sitting - ANSWER 8. Sitting
height: vertical distance from the seat to the crown of the head
9. Sitting eye height: vertical distance from seat to inner corner of eye.
(monitor)
10. Sitting shoulder height: vertical distance from the sitting surface to
the acromion of the shoulder. (backrest)
11. Sitting elbow height: vertical distance from seat to olecranon process
of elbow (keyboard & mouse)
12 .Thigh thickness: vertical distance from seat to top of thigh at thickest
part. (desk clearance)
13. Buttock-knee length: horizontal distance from the uncompressed
buttock to the patella while in the standard sitting position.
14. Buttock-popliteal length: horizontal distance from uncompressed
buttocks to underside of knee at popliteal angle while in standard sitting
position (seat pan)
15. Knee height: vertical distance from the floor to the top of the patella
while in standard sitting position
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