Top 3 ARX Questions Answered

Technology Questions

ARX is resistance exercise technology that uses computer-controlled, motorized resistance in place of weights or other more traditional forms of resistance.  This “adaptive resistance” provides safe, controlled, and quantifiable resistance that is of a higher quality than is currently possible with weights or other gravity-based systems found in the world today.

There is no need to set the resistance while using ARX. The machine applies perfect opposing resistance in direct proportion to the force the user is producing at each moment in time. The machine moves the handles or foot pads at the pre-selected speed during the positive and negative phases of contraction regardless of how hard a user exerts. The resistance provided by the machine is determined entirely by the user, whose effort is then measured and displayed by the software in real time.

Yes!  All ARX machines can be controlled autonomously by the software (Automatic Mode) so you can perform workouts alone and without the need of a trainer or partner.

The drive system and load cell are integrated with the motor controller system, both of which communicate with the software in a feedback loop. Numerous user data points like force output, range of motion, speed, percentage of fatigue, concentric and eccentric peak forces, and more are all tracked and displayed by the software. Additionally, this data is stored in the ARX cloud, where useful and motivational visual feedback of the data is displayed in the user’s online dashboard.

Either one of our models can provide a full-body workout all by themselves.

The Alpha is built around The Big Three — Leg Press, Chest Press, and Row. Quick, simple, efficient full-body work from one seat with almost zero learning curve.

The Omni has all the “bells and whistles,” and can perform more targeted work for those who want more versatility and control, or who know their way around a weight room and are looking for a better way to get the most from their resistance exercise.

You can check out this video for more about the differences between our two models.

ARX is safe for all forms of rehabilitation, offering the full spectrum of resistance ranging from passive resistance (stretching) all the way to eccentric loading (negatives). There are no weights to drop, the speed is pre-set and controllable, and the machine can never act upon the user without the user first acting on the machine. This means that a user can never encounter any level of force that they themselves did not first produce, and this never-excessive scenario dramatically lowers the risk of injury.

The body’s adaptive response of building stronger, bigger muscles is provoked primarily by the application of three elements at the muscle level: mechanical tension, physical damage, and metabolic stress.

These stimuli can all be applied through the use of weights, but ARX’s adaptive resistance allows you to apply all three elements in greater magnitudes, more safely, and more quickly than with any weight. So for those looking for a pump, more muscle mass, or just looking to build a more aesthetic physique, ARX is the best tool currently available for these purposes.

The following ARX Academy video goes into this in more depth: Click here to watch the video

Great question! We wrote an entire ebook talking about the research, benefits, and comparisons of the ARX machines in comparison to other workout machines.

You can access this research-packed ebook for free by clicking here.

More specifically, this ebook covers the following:

  • Why Using ARX Is Superior To Traditional Methods (Like Weights)
  • Why Resistance Exercise Would Be Worth A TRILLION Dollars (If It Were Done Correctly)
  • Why “The Old Way” Of Resistance Exercise Is NOT The Best Way
  • The Benefits Of Resistance Exercise That You WON’T Find In Health Magazines
  • The Research Supporting ARX Resistance Exercise (Bone Density, Anti-Aging, Rehab, Hormones, Etc)

ARX’s innovative technology delivers the safest and most effective resistance for the best workout experience. You can click here to check out our ebook to see the research that makes our machines stand above the rest.

Sales Questions

For business owners:

The investment in ARX machines allows business owners to make many times more in income from clients. Our Adaptive Resistance™ technology means you can offer your clients more efficient workouts in less time.

This means that after you invest in the ARX machine, you could earn a positive return on investment (ROI) when you allow your clients to use it.

For home gym owners:

The ARX machines use the most recent research while leveraging the benefits of free weights to give you a more effective, efficient, and safe option for strength training. 

By investing in the Alpha or the Omni, you can reach your strength and fitness goals without the burdens of free weights.

ARX works with a trusted third-party lender who has worked with our customers for multiple years. Our sales team can put you in touch with them to discuss your unique situation and get you answers regarding financing options.
  • Full payment for the hardware will need to be received before we can schedule a delivery date.
  • All software payments will begin on month 1 once that machine is delivered, installed, and turned on.

If you are interested in buying ARX, please click on the link Buy ARX, fill out the intake form, and one of our ARX sales reps will schedule a call with you ASAP.

Once a contract is signed and payment is received, delivery time within the United States is ~45 days. Depending on demand and the shipping queue, delivery times can be expedited if inventory allows.

Programming Questions

The speed of the motor can be adjusted within the ARX software.

You can pre-set the speed of the positive (concentric) and the negative (eccentric) phases of the repetition independently.

You can also control the duration of time the motor pauses at either end of the repetition. This speed control allows for ultimate flexibility in programming your workouts.


Using the ARX software, a user can pre-program any number of reps or any amount of time that they desire.

With ARX, any resistance exercise protocol is possible. This includes standard reps, negative-only, positive-only, static (isometric) protocols, time-under-tension sets, partial reps (limited range of motion), and more. You can have any number of reps, any amount of time, any amount of work output, at any repetition speed, with any portion of the range of motion for the given movement.

ARX can be used once per week, every day per week, once per month, or anywhere in between.

The most common ARX program followed by ARX users involves 1 to 2 full-body workouts per week for ~12 minutes per workout.

No, it does not. 

Any quality resistance exercise program will establish the number of rest days based on the intensity of the workout days.

In a well scheduled plan, there are enough rest days for the nervous system to fully recover from the workouts. With ARX, it is easy to manage this ratio of work days to rest days by measuring workload and fatigue in the ARX software. 

While there are no specific “stabilizer muscles,” muscles that surround the joints and provide stability have to work harder during ARX exercise.  This allows for greater mechanical loading of these muscles than typically occurs when using weights.

Since this is the case, resistance exercise using ARX stimulates the “stabilizer muscles” more effectively than traditional weights do.