Human Body Regarding All Physical Aspects Biology Essay

Published:

Anthropometry is the measuring of the human body regarding all physical aspects like height and weight. More extended measurements of the human body is normaly needed by Human Factors methodology for example the length measured from your elbow to the tip of your fingers or the circumference around your skull. Hoever, from a Human Factors point of view is the anthropometric data for only a single person not very useful if you are designing something specific for that specific person, such as a prosthetic arm. The great value lies in a statistical data set for a population which is measurements of a large sample of people.

With the data from a large enough portion of a population you can statistically extrapolate the data you don't have. With the knowledge of statistics, one can now measure a small group of people and have the knowledge to determine what the rest of the people will measure with a high degree of accuracy. The population can be devided in groups like "men", which represents all the males in the world from any race or country or it can be more specific devided into a demographic grouping such as "White American Men".

Lady using a tablet
Lady using a tablet

Professional

Essay Writers

Lady Using Tablet

Get your grade
or your money back

using our Essay Writing Service!

Essay Writing Service

This data can be plotted and the set we obtained is a normal distribution graph (known as a bell curve) if plotted by a lot of measurements. The result is that you find more people at the middle of the graph at the 50th percentile and very few at the extremes at 5% and 95% with almost nothing at 1% and 99%. There are endless applications or grouping for anthropometric data sets, but they normally concentrate on the designing or evaluating on a range in that specific data set as per example the range of women between 20 and 40 years of age.

3. Definition of Ergonomics :

Ergonomics is the science of making things comfortable and to makes things efficient with ergonomics (or human factors) as the discipline in connection with the understanding and knowledge of interactions between humans and other elements of systems or operations. Ergonomics can also be equally very useful in the design of processes or services and is not limited to products alone.

a Design's effectiveness is largely dependant on it's comfort and is the human-machine interface of whether an item feels pleasing to the user. If you do not like to feel it you will not operate it and then it is useless. Better ergonomics planning means better quality with the result that you will eventually be more comfortable with the item's value.

Efficiency on the other hand is making something easier to do. Efficiency comes in various forms and efficiency can be found almost everywhere. By reducing the number of parts in a model, you make repairs much more efficient and by reducing the number of procedure or steps in a task, you make it quicker (efficient) to complete the task. So by hearing the term ergonomics, you will recognise what it means to you in terms of comfort and efficient usage of an utility.

The Human Factors and Ergonomics Society (HFES) classified ergonomics (or Human Factors) as the scientific discipline busy with the understanding of interactions among humans and different elements of a system. This profession is continuously busy to applies theory, basic principles, operational data and other methods to design articles or objects in order to optimize our human well-being and overall smooth system performance.

Data processing and graph representing results:

Physical data has been collected of the women in the designated age group for their height and their elbow height while standing and inserted into an excel spreadsheet as indicated underneath. Consequently the average height and elbow height resulted in 1.710 and 1.128 meter respectively and the standard deviation on the height and elbow height calculated to 0.252 and 0.022.

Measurements for 100 women

Height (m)

Elbow Height (m)

1

1.458

1.106

2

1.504

0.939

3

1.530

0.950

4

1.538

0.948

5

1.541

1.093

6

1.542

0.98

7

1.543

0.926

8

1.548

0.965

9

1.549

0.909

10

1.550

0.960

11

1.564

0.957

12

1.565

0.896

13

1.572

0.998

14

1.572

0.943

15

1.574

0.970

16

Lady using a tablet
Lady using a tablet

Comprehensive

Writing Services

Lady Using Tablet

Plagiarism-free
Always on Time

Marked to Standard

Order Now

1.580

1.020

17

1.583

1.023

18

1.589

0.978

19

1.593

0.955

20

1.593

0.931

21

1.609

0.996

22

1.610

1.000

23

1.610

0.980

24

1.610

0.966

25

1.620

0.980

26

1.620

1.060

27

1.620

1.060

28

1.621

0.984

29

1.623

0.995

30

1.627

1.167

31

1.630

1.030

32

1.632

1.029

33

1.632

1.029

34

1.640

0.983

35

1.643

1.035

36

1.643

1.036

37

1.650

1.040

38

1.652

1.034

39

1.657

1.057

40

1.660

1.070

41

1.660

1.056

42

1.661

1.185

43

1.670

1.090

44

1.674

1.054

45

1.676

1.142

46

1.680

1.060

47

1.680

1.080

48

1.682

1.131

49

1.683

1.083

50

1.683

1.053

51

1.690

1.140

52

1.691

1.006

53

1.700

1.125

54

1.700

1.040

55

1.700

1.030

56

1.701

1.091

57

1.710

1.026

58

1.710

1.026

59

1.711

1.041

60

1.715

1.120

61

1.720

1.060

62

1.720

1.087

63

1.720

1.087

64

1.720

1.087

65

1.723

1.320

66

1.725

1.120

67

1.729

1.147

68

1.730

1.080

69

1.732

1.153

70

1.736

1.026

71

1.736

1.139

72

1.740

1.085

73

1.740

1.085

74

1.745

1.103

75

1.750

1.050

76

1.750

1.075

77

1.750

1.150

78

1.750

1.150

79

1.753

1.157

80

1.756

0.976

81

1.762

1.015

82

1.770

1.170

83

1.771

1.176

84

1.780

1.100

85

1.782

1.125

86

1.783

1.162

87

1.785

1.135

88

1.786

1.127

89

1.800

1.130

90

1.800

1.095

91

1.810

1.170

92

1.810

1.186

93

1.810

1.120

94

1.812

1.128

95

1.822

1.088

96

1.830

1.210

97

1.834

1.092

98

1.835

1.200

99

1.852

1.113

100

1.962

1.149

Average

1.710

1.128

STD

0.252

0.022

Normal distribution graphs for height and elbow height can be drawn as follows:

Graph for women's height

Figure 1: Normal distribution graph for women's height

Cumulative Probability

 

 

xmin

1.5

xmax

2

Pr(x<xmin)

20.23%

Pr(x>xmax)

12.49%

Pr(xmin<x<xmax)

67.28%

Figure 2: Graphs of Cumulative Probability

S - Curve Graph of Cumulative Probability

z

-0.84

36

x

1.49832

F(x)

20.05%

Figure 3: S - Curve Graphs of Cumulative Probability

Interesting analyses and conclusions can now being made from this graph like:

Figure 2 graph indicates that 20.23% of the total population will be less than 1.5 meters tall and 12.49% will be more than 2.00 meters tall with 67.28% exactly between 1.5 and 2.0 meters;

Figure 3 graph indicates that the probability for a person to be less than 1.5 meter in height, is actually 20.05% (area underneath normal distribution graph) that has been covered in blue.

The very same graphs shown above for the height of the women, can now being drawn for the elbow height of the same group of women to analyse this phenomenon as well.

Graph for women's elbow height

Figure 4: Normal distribution graph for women's elbow height

Cumulative Probability

 

 

xmin

1.11

xmax

1.15

Pr(x<xmin)

20.66%

Pr(x>xmax)

15.87%

Pr(xmin<x<xmax)

63.47%

Figure 5: Graphs of Cumulative Probability

S - Curve Graph of Cumulative Probability

Figure 6: S - Curve Graphs of Cumulative Probability

The following statistical analyses and conclusions can now being made from this graph like:

Figure 5 graph indicates that 20.66% of the total population elbow height will be less than 1.11 meters and 15.87% will have a elbow height more than 1.15 meters with 63.47% exactly between 1.11 and 1.15 meters;

Figure 3 graph indicates that the probability for a person's elbow height to be less than 1.128 meter, is actually 50.00% (area underneath normal distribution graph) that has been covered in blue.

Conclusion:

Anthropometry is concerned with the size and proportions of the human body and this is why the science of anthropometry is important to interior students. According to Dul & Weerdmeester (2001), the designers of workplaces and their accessories have to bear in mind the differences in body size of the possible consumers of interior designers products.

When designing objects like chairs and tables, it is important to keep in mind that the consumers of these products must be comfortable in using it whether it is for a short period of time or for a whole day at the office or home. If the science of anthropometrics is not included in a designers research on things like a chair for instance, it can cause pain and muscle stiffness to the consumer and will reflect a bad image towards potential or existing customers.

Lady using a tablet
Lady using a tablet

This Essay is

a Student's Work

Lady Using Tablet

This essay has been submitted by a student. This is not an example of the work written by our professional essay writers.

Examples of our work

Therefor we can make the conclusion that when we as interior students, have to design a workplace or related accessories, we have to take the statistics of human beings into account and design a object or a product which is suitable for all consumers, whether small, large, short or tall.

Source Reference :

Dul, J & Weerdmeester, B. 2001. Ergonomics for beginners, second edition. London: Taylor & Francis.

The Human Factors and Ergonomics Society (HFES). Online: http://www.hfes.org/. As on 3 March 2013.

Microsoft Office Professional Plus 2010. Microsoft Excel 2010