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The Adaptive Triangle™ - Adjust Your Workout Intelligently

// BY Jim Keen
Adaptive Triangle of ARX

A New Way of Thinking About Exercise

The purpose of strength training is to safely, effectively, and efficiently apply the exercise stimulus. The body then produces the desired results in direct proportion to the quality of that stimulus, as you read about in our article on How Exercise Works.

The Adaptive Triangle™ is a handy model we created to help people understand this exercise stimulus. Using the Adaptive Triangle™, you can determine how to intelligently adjust your workout.

Seeing is Believing

We think in pictures. When I ask you to think about your car, your refrigerator, or your home, the first thing your brain does is produce an image in your mind.

So when we think about the exercise stimulus, we can intellectually know what the primary factors are. But we can only think about these factors once we have a visual image with which to work.

Behold:

Adaptive Triangle of ARX
And here it is with the elements of the stimulus annotated:
Adaptive Triangle of ARX

Practical Application

So how can we use this image? Well, the most effective use of the image is to explain the fundamentals of how the different elements of the exercise stimulus work together to provoke an adaptive response from the body.

For example, you can see here that the more mechanical tension you have, the greater the muscle damage—primarily occurring during the eccentric phase of movement:

Adaptive Triangle of ARX
Another benefit of greater mechanical tension is that it causes a rise in metabolic stress—primarily occurring during the concentric phase of movement:
Adaptive Triangle of ARX
There’s also a feedback loop that exists as your set of exercise continues, whereby a rise in metabolic stress produces a cellular swelling effect (the “pump”) that increases the magnitude of subsequent muscle damage, which then turns back around and induces greater subsequent fatigue and metabolic stress:
Adaptive Triangle of ARX
And you now have a full picture of how to practically apply the stimulus. Tension is King, as it induces greater muscle damage and metabolic stress. These two reinforce each other to further magnify the stimulus:
Adaptive Triangle of ARX
 
For detailed information you can watch this video The Adaptive Triangle

 

The Best Tool for The Job

We want to maximize all three elements of the stimulus so that we can get the maximum adaptive response from the body.

Our Adaptive Resistance™ allows you to safely and efficiently max out each element without compromise.

You can exert maximum voluntary force at all times, continue your set to achieve any desired level of fatigue, and perform as many full-force eccentrics as you like without restriction.

Welcome to the 21st century of exercise!

ARX simplifies the most comprehensive full-body workout through perfectly matched, motorized resistance. Short for Adaptive Resistance Exercise, ARX is scientifically proven to deliver quantifiable results in less time. The all-in-one strength training machine dynamically adjusts resistance in real-time to personalize every workout. ARX empowers and challenges individuals to achieve their fitness goals one perfectly calibrated repetition at a time. No dangerous weights to drop and no adjustments to make, just exact resistance. Founded in 2016, ARX is headquartered in Austin, Texas.

For more information, please visit ARXFit.com and join the community on Facebook, Instagram and YouTube.
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