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Speedflex
THE SPEEDFLEX™ TRAINING SYSTEM. When you train with Acceleration Sports Institute, you get exclusive accessto the powerful training technology of Speedflex™. By targeting fast-twitch muscles, this innovative system increases the size of Type IIa and IIb fibers — enhancing the body’s ability to move heavier forces faster and maximizing power generation.
The greatest benefits of this training are increased VO2 max and a higher baseline of energy, which allow the body to do more work with less effort. This combination of explosive power and muscular endurance is vitally important for any athlete. No matter which of our personalized programs you choose, you’ll see the difference with Speedflex™ technology, only at ASI.