The Quadmill

..improvements were implemented along with a new physical look and operation interface developed by the new reACT Team, but the original concepts of the 0Quadmill was still the heart of the system.

Eccentric Training
Proof that Eccentric Training Works!

Information about Eccentric Training


picture "Rarely do we discover a truly unique training device, but the new reACT is just such a machine. It’s efficient (three one minute intervals leave your legs aching the next day) and non-impact (your feet stay on platform at all times). Plus, it focuses on the eccentric muscle contractions (the phase in which the muscle is lengthening, primarily used for skiing) rather than concentric contractions (the shortening phase that most training equipment emphasizes). Use the reACT for even two minutes three days a week and not only will your quads, hamstrings, and glutes be stronger, they’ll stay burn free longer on the hill.”

by: SKI Magazine

picture "The reACT has been great for us in all three aspects of the business – PT, sports training, and personal training. Next week we finish our 4-month of ski/snowboarding training and the hit of the class is the reACT. I have a 65-year-old female, 58 year old guy, 48-year-old guy and younger people going 4 minutes. Staff record to this point is 5 minutes. As far as PT, I use it with most of my lower extremity patients. Low level or acute injuries, I always show them the reACT on the first visit as a form of motivation. Knee patients, patellofemoral, post-op scopes, ACL’s, all enjoy the reACT and do not report any pain. That’s the nice part. Less pain, incredible quad workout. Can’t find that anywhere else.”

by: Brian Cronin - Udistrict Physical Therapy, Spokane, WA

picture "The reACT is a vital part of our training program. For us it has opened a new door to strength training. It seems that the machine can bring the athletes into the anaerobic ‘zone’ very far. We think that the more structured training we do on the reACT the more benefit we will have. It’s innovative design affords low impact training while giving our athletes a really tough leg workout at the same time. This allows our athletes to perform a significant amount of training without the added risk of injury. The team has tried to make such an apparatus, and has looked at 8-12 other machines, but this one is the only one that is effective.”

by: US Ski Team, Park City, UT

picture "As I travel around and interview/film skiers, the most common complaint is that their Quads are NOT in the shape that allows them to perform at the ski level that they would like. In my own experience, I have found that the reACT has greatly strengthened my quads and have made it possible to perform On Camera in a great variety of terrain and snow conditions. I recommend the reACT highly. It’s an awesome machine."

by: Jake Moe NWCN’s “Ski Northwest (Founder of POWDER Magazine)

picture "I have taken (the reACT) to 2 different health fairs and the response is ridiculous. Our members absolutely love it and our trainers have incorporated it into all athletic training. When you see it, don’t be fooled by how benign it appears. The longest we have had anyone stay on while using it correctly is about 3 minutes"

by: Blair C. McHaney, Gold’s Gym of Wenatchee, WA

picture "The reACT is my favorite machine. It helps my back, legs and balance. I am 83 years old and have had heart and back surgery"

by: Frank Spisak – Bellingham Athletic Club

Quadmill and EccentriC Training
Years of research, engineering and field testing by elite athletes and fitness professionals

The reACT (formerly known as the Quadmill) is a uniquely designed fitness machine, focused on eccentric muscle conditioning of the lower body. It is the one and only machine in the fitness world designed to focus on your muscles shock absorption funtion, rapid strength gain and anaerobic exercise. Training with the Quadmill ensures that your lower body muscle-tendon relationships are strong and healthy, leading to your body being able to smoothly absorb the impact of gravity and velocity, time after time, in your favorite activities.

Built for High Performance Athletes and those searching for the very best in conditioning, and eccentric training. The following sports organizations continue to use the Quadmill/reACT product:






Ski Heritage - 1992

The seed idea for the Quadmill was from Kevin Creelman, a physician in Kodiak, Alaska. No method of conditioning seemed to work to condition for ski trips. Creelman came across a video by Greg Stump, a well respected skier, who showed how to ski the “Bumps”. Greg’s visual explanation was that of a motion what he called the “reverse bicycle motion”. Creelman brought this to his cousin Terry Jacobs’ attention on a visit to Jacobs’s summer home on Hood Canal, and sketched his vision of a ski machine on a piece of paper. The two cousins fortified themselves with a bunch of oysters fresh picked off the beach and embarked on the project.

The Start - 1992

The challenge seemed perfect as Jacobs had worked for K2 Ski Company for 11 years and was intimately familiar with developing processes for K2 for the ski industry on an international basis. The challenge wasn’t just going the right direction, but also having energy that would be forced back up at a person so the rider could absorb it. The initial version in the sketch was scrapped but Jacobs made a first prototype and still used the reverse bicycle motion. The machine gathered energy and delivered it back to the rider’s legs. It was far from perfect, but it was enough to test and further develop ideas.

More Ideas and a Motor - 1993

The patent write-up wasn’t even finished for the first machine when more ideas started flowing, but the emphasis was still on the skiing aspect. The next phase became obvious when they realized that simplistically, when a person was at the top of a mountain, they were full of potential energy. That energy would be absorbed by only a few things; the friction of the air, the friction of the snow, and the muscles of the leg when turning to slow down. This brought out an obvious new reality, a constant source of power for the legs to absorb: a motor. After a few sessions of sketching and collaboration, the first prototype went back to the shop and was cut, welded, and fit into a new machine driven by a motor. It also incorporated the dual crankshaft so the platform was more stable and easier to stand on. Out of this effort came the second patent. A third design effort was actually a takeoff of the first two, but where the motions could be separated, forward and back, from up and down, which helped understand the motion. Through experimenting with this machine when it was completed, a great deal was learned about the motion, but a completed commercial model was elusive. A break from the project brought new ideas and one of the final mechanical hurdles and conceived, the “Floating Platform”.

The Final Push November 2000

In November of 2000, Jacobs decided to make the final version and rented a small shop to devote full time to the machine. Two versions of the floating platform were made before settling on the best. The new machine was ready to run by mid January 2001. It worked, but for the first month, only Jacobs’s lighter daughter Kelsey could ride it until an updated drive system was installed. That version and drive system became the base that is still used today. The machine was tested extensively with continuous loads, heavy loads, and dynamic loads during the fine tuning. The test load it needed to continuously run with was 400lbs, double what the UL load test was. By that time, it was understood that the concept was not only great for skiing, but was great for all other activities also.

Initial Validation by Olympic Athletics

An appointment was made with the US Ski Team in Park City Utah to test it in mid June. Creelman flew down to participate and with the machine in a rented u-haul trailer behind the family Explorer, the pair headed down to Park City, Utah, old Bob, Jacobs’ Black Labrador along for the ride. Andy Walshe, Sport Science Director for USSA, was the contact. He rode it and loved it. Walshe brought over Per Lundstam, his facility manager and he also was struck by it, along with various other athletes. They wanted to keep it to use, but since the company was not yet incorporated, the request was temporarily declined, but it was agreed to bring the machine back again with an updated, special railing that Per envisioned. The railing was changed (see Ski Magazine photo January 2008), Cascade Fitness Technologies, Inc. was incorporated, and the machine was returned. It was in heavy use until it was passed to the local ski team in anticipation of the new model last year.

The Quadmill Name

Since the project was initially targeted to the ski industry, the name reflected this and it was called the “Mogul Master” internally. After the successful introduction to the USSA, and subsequent incorporation, it was decided to make a new more universal name for the product. After some collaboration on several options, the name “Quadmill” was selected. As good as it sounded, there were several drawbacks. One was the take off on the “mill” name made it sound as if it was a cardio machine. Another was that the Quad actually limited it in one’s mind. With great marketing, these could have been turned into advantages, but with limited introduction many people didn’t understand the concept.

Early Adopters

The machine was well received with results for eccentric conditioning, but most mainline Athletic clubs were not early adopters. Seattle Athletic Club downtown with Aaron Branom and Bellingham Athletic Club with Kathy Buckley were two enthusiastic customers that started the commercial sales out. Others followed and gradually, without a true marketing effort, the athletic club sales increased. U-District Physical Therapy was a cold call on a now very successful young company that did Physical Therapy as well as elite conditioning. They loved the machine and their personal ties with the Gonzaga Bulldogs Basketball team in Spokane made the introduction to the first Quadmill study, that of respiratory consumption of the Quadmill. (See Gonzaga Study) Another early sale was to a private customer, Sharon O’Hara Blomlie, a COPD patient. Utilizing the information that obtained had from Gonzaga, she bravely tried the machine in her garage using an oxygen monitor on her finger as she tested. Her brave trial showed that she could use the machine aerobically for short durations and increase her leg strength. In her estimation, this activity was what enabled her to develop strength and endurance enough to ride in several COPD marathons in Western Washington. In her words, it gave her life back. (See testimonial).

Professional Sports

The very first machine, a 15”, was offered to the local professional basketball team the Seattle Sonics. Dwight Daub, Strength Coach for the Sonics was one of the early fans and was the first professional to take the concept to a higher level. Unfortunately, the old Sonics didn’t have the proper talent mix to continue, but Daub did document several cases where he used the Quadmill to speed recovery for the court and have less recurring injury because of its use. About that time, Chris Spalding of the Navy Undersea Warfare Group III (SEALS) saw the machine at IHRSA, purchased it, and started putting it to good use. The fledgling company now had three high end users to talk about: the Olympic Ski Team, the Sonics, and the SEALS. The real break came several years later when Byron Hansen, Strength Coach for the New York Giants, tried the machine and bought it. The next year he used it for not only conditioning, but rehabilitation. At his request, Cascade Fitness was invited to attend the Professional Football Athletic Trainers meeting where our machine was introduced to all the NFL trainers. Because the Giants won the Super Bowl that year and they attributed a portion of their success to the Quadmill, Cascade was invited to be on the show ”The View,” featuring Michael Strahan of the Giants. Suddenly Cascade Fitness getting calls from many people.

Belmont University

Geoff Kaplan, Strength Coach for the Tennessee Titans knew the Quadmill was as vital part of his conditioning and rehabilitation regimen but Cascade Fitness could not offer any third party validation for what he knew was true. His solution was to contact Kevin Robinson of Belmont University Motion Analysis Lab to understand the effects of the motion. The initial EMG study showed sensational results, and Robinson requested a demonstrator to pursue several true clinical studies. The results showed that muscle enervation for the major knee muscles was nearly 50% greater using the Quadmill than the closest known exercise. (See Belmont Study) Another core study was performed as a follow-up.

New Design

It was not long after the first machine was in use that ideas for an upgrade were being formulated from feed back of knowledgeable users as well as observation and testing by Cascade. These improvements were implemented along with a new physical look and operation interface developed by the new reACT Team, but the original concepts of the 0Quadmill was still the heart of the system.

Professional Distribution Network and reACT

By 2008 cascade Fitness had several suitors to partner in the project. The selection was made and Cascade chose to move forward with Lee Guthrie and Associates. The depth of understanding and history of involvement in the industry was expected to open the door for worldwide marketing of the product. New changes to the training system and a whole new approach to manufacturing, design and distribution led to the renewed product to be launched as the reACT.


  • First prototype completed 1992
  • Patent # 6,508,746, awarded Jan. 21, 2003
  • Patent # 5,342,265, awarded Aug. 30,1994
  • Patent # 5,484,363, awarded Jan. 16, 1996
  • Technologies formally incorporated July 25, 2001Cascade Fitness
  • Registered Trademark Filed July 21, 2001
  • European Union Patent Priority Filing effective September 25, 2001
  • European Union Patent granted August 9, 2010
  • Distribution agreement with LGA signed May 2010
  • US Ski Team acquired QUADMILL for conditioning and rehabilitation October 2001 through present
  • Seattle Sonics basketball team acquired QUADMILL for conditioning and rehabilitation October 2002
  • Navy SEALS purchased QUADMILL for conditioning and rehabilitation December 2003 through present
  • QUADMILL purchased by six NFL Teams in 2007
  • Five of six NFL Teams make the playoffs 2008
  • Featured on ABC ”The View” as key training machine for the NY Giants Super Bowl
  • Featured in article in Ski Magazine November 2003.
  • QUADMILL featured full page in Ski Magazine “US Ski Team Training Tips”, January 2008
  • Featured with picture in Wall Street Journal February 16, 2008
  • Featured on NBC affiliate King 5 Seattle news segment.