What is Ergonomics?

Ergonomics is a body of knowledge about human abilities, human limitations and other human characteristics that are relevant to design. Ergonomic design is the application of this body of knowledge to the design of tools, machines, systems, tasks, jobs, and environments for safe, comfortable and effective human use.

'The Science of Work', deriving the word 'ergonomics' from the Greek words ergon, meaning work, and nomos, meaning principle or law. The word "ergonomics" is often used synonymously with "human factors engineering".

Many people view ergonomics as the science and applied science of fitting tasks and equipment to people, rather than forcing people to adapt to designs that neglect the unique capabilities and limitations of the human. Designs that consider human abilities often make human work more productive, efficient, reliable, and safe. These factors often translate into significant bottom-line competitive strategies for the companies that choose to implement ergonomic principles into the design and operation of their workplaces, and the design of their own products.

How do I Know if a Product is Ergonomically Designed?

There is no such thing as an "ergonomic product". This may seem like an unusual statement, but the truth is that the method in which a product is used defines whether that particular product is "ergonomically designed" or "ergonomically correct". When selecting a product, you must have a particular use in mind before you can determine which product will be best fit for the task. This includes such considerations as population of the people that will interact with the product, and the physical and cognitive abilities the product and tasks will require. A product may be designed for a specific application but only if the product matches the characteristics of the required operation and the characteristics of the people that will be using the product.

Some products are designed to specifically reduce one or more commonly understood ergonomic risk factors. Ergonomic risk factors include such things as high forces, awkward postures, physical strain, repetition, vibration, etc. Then, for example, a tool that has been designed to reduce serious injury from lifting could be considered "ergonomically correct" but only in terms of the lifting characteristics.

Used correctly, TWISTARP helps eliminate awkward work positions and high repetitive forces. No more working bent over shoveling dirt. Trips up and down ditches and slopes are reduced. This is how TWISTARP reduces strains and sprains, physical exhaustion, and potentially dangerous injuries and lost time accidents.

Average WT. of yellow pine pole pent ;& oil
Average WT. of dirt from hole
Size of pile: weight of pile:
30' CL 5 = 690 lbs
5' deep x 16" dia.= 900 lbs
12" wide 6" high 13 pounds
35' CL 5 = 880 lbs
6' deep x 18" dia. = 1380 lbs
24" wide 12" high 105 pounds
40' CL 4 = 1261 lbs
6' deep x 20" dia. = 1680 lbs
36" wide 18" high 350 pounds
45' CL 3 = 1758 lbs
6' 6" deep x 20" dia. = 1820 lbs
42" wide 21" high 560 pounds
50' CL 3 = 1925 lbs
7' deep x 20" dia. = 1960 lbs
48" wide 24" high 840 pounds
60' CL 2 = 3252 lbs
8' deep x 24" dia. = 3200 lbs
60" wide 30" high 1670 pounds
70' CL 1 = 4806 lbs
8' deep x 30" dia. = 5080 lbs
72" wide 36" high 2830 pounds
80' CL 1 = 5958 lbs
9' deep x 30" dia. = 5718 lbs
84" wide 42" high 4500 pounds
90' H 1 = 8561 lbs
10' deep x 36" dia. = 9180 lbs
96" wide 48"high 6700 pounds