Bullworker

The Bullworker is an isometric exercise device used for strength training originally marketed and sold in the early 1960s. Designed and patented by German inventor Gert F. Kölbel, it continues to sell in Europe, Asia and the U.S.A.

Design

The original Bullworker consists of two sleeved, spring-loaded, contractible cylinders in the center, with two hand grips affixed at the outermost ends. Two opposing cables are also attached to the hand grips at each end of the device. Exercises are performed by pushing inwards on the contractible cylinders or by pulling the cables outwards, away from the cylinders. The resultant compression of the internal spring creates the desired resistance; the Bullworker returns to its original position when pressure is released.

Although a number of improvements have been made to the Bullworker from its introduction to the present, including the replacement of the cables with nylon straps, the basic construction and principles of operation remain the same. The Bullworker is still marketed worldwide today.

It sold mostly through ads in comic books and magazines. Koelbel's device allowed for the performing of 26 individual exercises.

Whilst berated by the multi million pound industry it has a large following who state that it is a very effective and more importantly an easy way to build strength/muscle mass.

References

* [http://www.gettingfitagain.com/bullworker.php Bullworker History]
* [http://india-today.com/btoday/20020804/books.html India Today Bullworker Article]
* [http://www.bullworker.info Bullworker Information and model comparisons]

ee also

*Dynamic Strength
*Dynamic Tension
*Isometrics

External links

* [http://www.bullworker.com Bullworker.com]