In the 1970s, Gert F Kolbel — a German inventor — took an existing patent and created what could be considered the first "isometric exercise equipment."
It Was Called the Tensolator
The original patent belonged to Arthur A. Pons.
His was a simple device that consisted of two tubes with a handle at the end — with a resistance spring inside.
Kolbel modified the original patent by adding a steel cable that wrapped around and through the handles of the device. This allowed the user to perform "pulling exercises" similar to resistance bands or cable machine and by using the handles he or she could compress it as well.
Sales for this device took off and was probably one of the most successful home exercise devices in history. (According to some fitness experts, this was probably the first commercially sold piece of isometric exercise equipment.)
Recently, this device has been completely redesigned from the original two tube system to a new product that utilizes three tubes.
This allows each side of the body to be developed equally.
In other words, just like dumbbells it forces the — right hand as well as the — left hand to exert the same amount of pressure when performing an exercise. This is what makes this product so unique from any other on the market today!
What Are the Benefits of Isometric Exercise Equipment?
The major benefit is of course that unlike free hand isometric exercises — this type of exerciser allows you to not only measure your progress but also allows you to increase the resistance because of the unique spring design.
Let’s face it, unless you use progressive resistance you will eventually stop making gains in whatever exercise you’re doing. Each time you workout you should attempt to use more resistance. This is the only way that the muscle response by become stronger and larger.
The second major benefit of this type of device is that allows you to perform more exercises than you could normally do without exercise equipment. Weightlifters for years have used isometrics to help them in their power lifting. There are various methods today that can turbocharge your results. But more about that later
The ability to provide progressive resistance is what makes these new and breakthrough isometric exercise equipment devices something that everyone should have as part of your strength and muscle building programs.