Maximum Muscle Growth In 7 Seconds A Day

The Truth About Cholesterol

Even prehistoric man observed that muscles grow in size and strength with use, but it was not until the turn of the century that scientists began to enquire into the how and the why of the process. In 1887 Professor Morpurgo discovered in experiments conducted in the university of Sienna, Italy, that increases in the strength and size of muscles result from the growth of existing muscles rather than from the formation of new muscles.

In 1905 W. Roux postulated the basis of the theory (later refined and documented by scientific observation) on which all systems of excercise are based on the “Overload Theory” muscles grow only when exerted with greater than normal intensity.

The most significant breakthrough in our time resulted frrom a series of tests against a superior resistance of more than 200 experiments conducted over a 10 year period by Drs. E. A. Muller and Th. Hettinger in the Max Planck Institute in Dortmund Germany. The discovery that maximum muscle growth can be attained by exerting 60% of existing muscle strength against a superior resistance for just 7 seconds once a day was remarkable.


This remarkable excercise technique is called “Isometrics” (where the excercise is performed throughout the range of muscle movement, which is called Isotonics) These experiments documented the fact that Isometric excercise increases strength by up to 4% per week (a few of the subjects tested even averaged gains of 5% per week)  Optimum results are obtained with 5 workouts per week, but even a single weekly workout is sufficient to maintain the improvements attained.Isontonic vs Isometrics

Professor James A. Baley put Isometrics to the test with a class of college students at the University of Connecticut. The Isometric training group improved three times faster than the sports training group on tests measuring increases in strength, endurance, co-ordination and agility. The first Isometric training equipment was cumbersome, complicated to operate and prohibitive in cost. A number of rudimentary Isometric training devices have been offered to the general public such as: roller, outsize clothespins, rope pulleys, and the like, but thier effectivness was, at best, limited to a few muscles.

It remained for inventor Gert. F. Kolbel to develop an Isometric trainer which could be used for both contraction and extension movements, with a range of use covering all of the major muscle groups which was light in weight, compact in size and which couod be produced at a cost fitness conscious men could afford to pay.

Germany 1963

The first Bullworker was introduced in germany in 1963 to the unanimous acclaim of athletes, coaches, sports doctors and physiotherapists. ( The German Olympic team were the first to prove it’s effectivness in improving sports performance) The rest is history. Bullworker has become synonymous the world over with fitness training.Gert Kolbel

More than 5 million had already been sold. Over the years Gert. F. Kobel had continued to improve both the excersiser itself and the training program. The full range of approx 28 excercises is the end product of more than 15 years of research testing. The fact that the Bullworker is regaining its status in the fitness world is testament to this great piece of equipment. It has been proven time and time again that it works. The all new Bullworker Pro is now the Bullworker of choice for fitness enthusiasts.


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