When I approached Dr. Spencer Magleby, PhD., Dean of the Mechanical Engineering Department of Brigham Young University, Provo, Utah, with the proposal that I wanted to improve upon the quarter-fold rebounder mini trampoline we had perfected and made available in 1995, he surprised me by saying, “All of the technology necessary to develop your quarter-fold rebounder was available to us during the First World War.”

He was talking about the bending, welding, painting, drilling and milling of steel to create the frames that are being used in all of the rebounders today.

“Your next step is to bring rebounder equipment into the new century.”

“How do we do that?” I asked.

“Use polymer - composite materials,” he answered.

“Aren’t polymers brittle, soft and cheap looking?" I inquired.

“They can be, but they can also be harder than steel, immaculately crafted, lighter, and stronger. The stealth fighters are made of composite polymers; polypropylene and fiberglass. Many automobile parts - including engine parts are made of polymers. There are over fifty different combinations of materials that can go into the production of products each with their own specific characteristics. All you have to do is find the combination that fits your needs. A rebounder is an ideal devise to be constructed of composite polymer materials.”

“Is it expensive?” I asked.

“Only in the beginning, but I believe the investment will be well worth it.”

“Well, let’s explore its potential, then.”

That was my beginning of a great adventure into a world previously unknown to me of composite materials.

Professor Magleby appointed me as the head of the project. The six students were there to get a grade. I was there to receive the benefit of what would come of the mechanical engineering project called “Ultimate Rebounder.” I presented the primary specifications.

1. It is an exercise device that will be used on a daily basis.

2. It provides an efficient rebounding experience.

3. The 28½ inch diameter Baycor® Permatron™ mat is circular and parallel to the floor.  (Made in the U.S.A. by the Ten Cate Nicolon Corp.)

4. It is supported by eighteen aluminum mat/spring attachments, which, in turn is supported by 36 wide bellied springs.

5. It has to support 400 pounds of dynamic weight.

6. The 36 springs are connected to a frame that has 4 uniquely designed hinges and is capable of being folded twice into a quarter-fold.

7. The frame is 40 inches in diameter and supported by 6 permanently connected aluminum legs.

8. Each leg must have the ability to "unlock" and be folded out of the way, into the frame itself, if possible.

The design was such that it made a frame cover obsolete. There was no need for springs in the leg. You simply slid them into their slots and turned them by 30 degrees to lock them in place.

They even designed a built-in compartment for each leg to fit in when the frame is folded.  Very useful!

The students were great, but they were only students. To perfect the design we needed to go to the experts - the engineers who were going to create the actual mold for the frame.

This was a real challenge because we couldn’t find a factory in the United States who would design and produce the mold for under $150,000.00 up front.

Our search culminated in a high-tech factory in Korea which was perfectly equipped for the project.  They were so confident in the outcome, they were willing to guarantee their workmanship and back up every component produced!

We even included a good looking, custom fitted, double zippered nylon carrying case and its own transport dolly. However, what we thought was going to take 90 days from design to production has taken over two years due to meticulous product test improvements!  

Was it worth it?  You decide.  After 12 years of Quarter Fold rebounder evolution, I proudly present to you, The Ultimate Rebound™.  Revolutionary materials and workmanship.  The ultimate in convenience and portability.  The "ultimate" rebounder mini trampoline devise!

- Al Carter, Founder, American Institute of Reboundology, Inc.  Patents Pending on The Ultimate Rebound™ concept and design.

[Technical Studies, Notable Quotes and Sources] Clinical trials and impressive endorsements.  "NASA confirms it!"

[Books, Videos and ReboundAIRs] The 1.3 million best seller The New Miracles of Rebound Exercise, The Cancer Answer and The Miracles of Minerals. One of Al's world famous lectures recorded on a video called The Immune System. Plus! Rebound Aerobics videos and equipment.

[Frequently Asked Questions!] What is the difference between leading rebounders?  Most likely, we will answer your questions with this helpful page. If not, please give us a call toll free, 1-888-464-JUMP

[Visit Rebound-Aerobics.com] The newest trend in club aerobics.  Free gift with purchase!

[FAQs about Rebound Aerobics in the Health Club] Number one comment: "Rebound Aerobics is fun!"

[The Healthy Cell Concept?] Learn about cell food, cell exercise, cell water and cell communication.  Be sure to read the Cancer Answer book by Al Carter.

[Bounce Back Chair] Rebound exercise while sitting in a chair!  Excellent for rehabilitation, disabilities, the elderly with mobility challenges and the obese.

[A Letter from the President: The Aging Myth!] An interesting article about Rebound Exercise by Al Carter.

Rebounder Newsletter  "The Voice of the Rebound Exercise Industry." Learn more about our fantastic bodies: The bones, striated and cardiac muscles, connective tissue and the brain all respond to exercise. But what about the lymphatic system, white blood cells and the finite mechanisms that assist us in maintaining balance? Two motivating articles by Al Carter.

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