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    Anthropometry.ppt

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    Anthropometry.ppt

    1、1,ISE 311 - 4,Anthropometry,Literally, The measure of man quantifies human variability What? physical measures height, weight, reach, length, width, depth, circumference, surface area, etc. strength, dexterity, range of motion,2,ISE 311 - 4,Why?,We are not all the same size. Exclude as few as possib

    2、le: “Let the small person reach, let the large person fit.” Poor design for mechanical abilities of the human body can lead to discomfort or injury, e.g., the height of keyboard for a computer. Sources of Anthropometry Data Text Ergo software Tables in books in the HF/SQC lab (215) Online sources, e

    3、.g.http:/mreed.umtri.umich.edu/mreed/downloads.html#ansur,3,ISE 311 - 4,Example Anthropometric Data,Static Measures Passive measures of the dimensions of the human body. These measures are used to determine size and spacing requirements of work space. Example Measures arm length (e.g., your lab ) he

    4、ight weight wing span seat to elbow height.,4,ISE 311 - 4,More Anthropometric Data,Dynamic Measures Measures of the dynamic properties of the human body, such as strength and endurance. These measures are used to match the dynamic characteristics of controls to user. Measures range of motion for var

    5、ious joints force of leg pushes strength of fingers,5,ISE 311 - 4,How?,PopulationsTools & techniquesStatistical calculations based on central limit theorem typical calculations mean standard deviation percentiles from ordered data estimate for normal distribution,6,ISE 311 - 4,An Example ,A study wa

    6、s performed to determine key anthropometric measures of school-aged children to be used in the design of playground equipment. Based on a sample size of 1050, the vertical reach of 7-year old boys was found to have a mean of 57.1 inches and a standard deviation of 3.3 inches.5th percentile = _ (z =

    7、_) 50th percentile = _ (z = _) 95th percentile = _ (z = _),7,ISE 311 - 4,Using Anthropometric Data,Know your population If your measures are from a different group than your users are from problems could result. Women are different from men. Asians are different from Europeans. Use Recent Data Chang

    8、es in diet and habit lead to changes in size and fitness of population Most size measures are done on nude or lightly clothed subjects. clothes change our sizes think of seat belts in summer vs. winter.,8,ISE 311 - 4,Using Anthropometric Data,Understand the task how will the system or device be used

    9、? reach, fit, & strength requirementsCautions about adding segments: every measure contains variability st2 = s12+ s22+ s32+ the nth percentile person is not composed of nth percentile segments,9,ISE 311 - 4,Using Anthropometric Data,Refer to Table 2.10 on page 44 of your text. (“Let the small perso

    10、n reach ”) If you were designing a console requiring a forward reach to activate a control, what reach distance would you use to define your maximum console depth?(“Let the large person fit ”) What is the minimum height of the bottom of the console if the operator is seated?,10,ISE 311 - 4,Your turn ,In-class design problem (if we have time): Design a student desk & chair for the engineering school. Assume the student population mirrors the general population. How do the tables and chairs used in the building compare to your design?,


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