Static And Dynamic Anthropometry Pdf
File Name: static and dynamic anthropometry .zip
Z94.2 - Anthropometry & Biomechanics
Introduction to Anthropometry. Anthropometry is the study of human sizing - the dimensions of the different parts of the body. The simplest and most common form of anthropometry is Static Anthropometry, where people are measured in unmoving, defined postures. The measurement points on the body are called Landmarks, and the measurement can be defined as a pure vertical or horizontal distance, a straight line, or along the surface, from one landmark to another.
The other kind of anthropometry is call Functional Anthropometry, and includes dynamic reaches and strength measurement. This page is about static anthropometry. Some landmarks are actually bones under the surface of the skin, found by feeling and then marked. For this reason 3-D scanning is often supplemented by some direct physical measurement. This is an anthropometer being used to measure a straight-line distance between two landmarks.
An anthropometer is basically a large sliding calliper with a numerical readout. OE Home. Anthropometry Sampling. Fitting Trials. PeopleSize Anthropometry. This picture shows a subject marked up ready for measurement. Surface measurements are made with a simple flexible tape measure, or derived from scan data. Sampling Surveys can only measure a sample of the people they are interested in.
Samples sizes range from 10's to 's, depending on the scope and purpose. In order to have a good match between the sample and the 'population', generally a mix of random and targeted selection is used, to make sure for example that a minority group has enough representation. The larger the sample, the less likely it is to have an unexpected bias. It's a characteristic of human variation that most people are near to the average, then there are proportionately fewer and fewer people towards the extremes.
In ergonomics it is normally the extremes that we are interested in, because that is where any given aspect of a design will start to "not fit". Because the actual size of say the 2nd percentile is determined by the size of only 2 percent of the sample, sample size has a dramatic effect of the reliability of the resulting data - in a sample of 50 the smallest subject is the 2nd percentile, so if that individual happens to be particularly small, or the same size as the 2nd smallest, that will produce an error.
In practice statistics are used to smooth out the variation, but really then the error is just spread evenly across all the percentiles. It is difficult to recruit volunteers who are extremely large or small, and in general government health surveys are much more successful at this than commercial clothing surveys. For that reason clothing surveys characteristically show people to be taller and lighter than do government surveys.
What percentiles to use? Once you've identified the right anthropometry data, and understood the measurement, you have to decide what percentiles to design for.
It's best to see this question in terms of excluding a percentage of users from the design, and then formally to consider: What happens for excluded users - discomfort, inconvenience, danger etc?
The more severe the consequences, the fewer exclusions you can allow. Do the excluded users expect this e. Can you warn the excluded users? Are there degrees of exclusion that you should consider, beyond the basic target?
For example, set 95th percentile for one non-critical dimension and 99th for another that is more crucial. How much would it cost to increase the design range? Testing It's never safe to go directly from anthropometric data to the finished design. Any dataset has an error rate, and also the way the measurement was taken may not relate all that well to the way people will fit into and use your design in real life.
In addition there is an important issue that if more than one dimension has to fit, every extra dimension will exclude some more people. So you should always test with a Fitting Trial.
Introduction to Anthropometry. Anthropometry is the study of human sizing - the dimensions of the different parts of the body. The simplest and most common form of anthropometry is Static Anthropometry, where people are measured in unmoving, defined postures. The measurement points on the body are called Landmarks, and the measurement can be defined as a pure vertical or horizontal distance, a straight line, or along the surface, from one landmark to another. The other kind of anthropometry is call Functional Anthropometry, and includes dynamic reaches and strength measurement.
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Even the most casual reader will note that the data in this section are treated differently from those in the other sections; the reasons are many. First and foremost, a straight alphabetical arrangement would not be helpful. Clearly a diagrammatic arrangement would be more helpful and logical.
Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. This study aimed to identify the anthropometric measurements and their relation to the static and dynamic balance among junior tennis players.
Anthropometry and Biomechanics pp Cite as. In this paper three standards are examined to find out how far anthropometric-biomechanic procedures and data have been applied, and to comment on the suitability of anthropometric data in its traditional static form to the workplace, where the activity is dynamic and the worker can come from any section of the community male-female, 1st — 99th percentile. Unable to display preview. Download preview PDF.