Saturday, March 20, 2010

Ergonomics Study

The term “ergonomics” is derived from two Greek words: “ergon”, meaning work and “nomoi”, meaning natural laws. Ergonomists study human capabilities in relationship to work demands.

In recent years, ergonomists have attempted to define postures which minimize unnecessary static work and reduce the forces acting on the body. All of us could significantly reduce our risk of injury if we could adhere to the following ergonomic principles:

· All work activities should permit the worker to adopt several different, but equally healthy and safe postures

· Where muscular force has to be exerted it should be done by the largest appropriate muscle groups available.

· Work activities should be performed with the joints at about mid-point of their range of movement. This applies particularly to the head, trunk, and upper limbs.


Here, however, we arrive at a serious problem - and a challenge to conventional ergonomic thinking: In order to put these recommendations into practice, a person would have to be a skilled observer of his or her own joint and muscle functioning and would have to be able to change his or her posture to a healthier one at will. No one develops this sort of highly refined sensory awareness without special training. Therefore, in order to derive the benefits of ergonomic research, we must learn how to observe our bodies in a new way.* Any attempt to improve workplace conditions can have only limited success if this issue is ignored.

One training program that cultivates precisely these skills is the Alexander Technique. It has a long history of helping people develop the subtle coordination of thought and physical action required to monitor and alter harmful patterns of posture and movement. In short, it enables its students to put ergonomic principles into practice, and thus helps them reduce their risk of developing a repetitive strain injury and other stress-related injuries. For example, published by the British Medical Journal in 2008 offers overwhelming evidence that the Alexander Technique is a very effective way of alleviating backpain.

The Alexander Technique was developed in the early 20th century before ergonomics became a recognized science and has been applied since then by people all ages and professions. The Technique can be described as a simple and practical educational method which alerts people to ways in which they are misusing their bodies, and how their everyday habits of work may be harming them. It teaches people how to avoid work habits which create excessive amounts of static work and how to reduce the amount of unnecessary muscular force they are applying to their bodies. Stated another way, the Technique teaches the use of the appropriate amount of effort for a particular activity.

This Web Site is dedicated to the exchange of information between the fields of ergonomics and the Alexander Technique. Suggestions and contributions from ergonomists and from Alexander Technique students and teachers are most welcome

Chair Design and Backpain

Nowhere is the interplay of ergonomic and Alexander Technique concepts better illustrated than in the design of chairs, and the ways in which we use the itprovides a wonderfully fresh look at an object so common in our society that most of us pay little or no attention to it. Galen Cranz, a professor of architecture at the University of California and a teacher of the Alexander Technique, has written what is probably the definitive work on this topic. Ergonomists, Alexander Technique teachers - and everybody else who sits on chairs - can learn a great deal from this very readable book

One of the most common work-related hazards of concern to ergonomists is backpain. Several videos and books have been produced and written by physical therapists who have also trained to become teachers of the Alexander Technique. As such, they provide a unique perspective on the topic and make excellent resources for anyone suffering from backpain - and for anyone who wants to avoid suffering from backpain in the future.

One of those videos, Solutions for Back Trouble, uses several concrete examples, such as sitting, sleeping, brushing your teeth etc. in which the Alexander Technique/physical therapy interplay results in elegant ergonomic solutions.

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