Volta X: Direct Current ACL Recovery | Accelerate ACL
Technology

The Volta X:
Direct Current, Redefined

After ACL surgery, the nervous system changes fast — muscles shut down, movement patterns fade, and natural activation becomes harder to access. Recovery isn't just physical; it's neurological. The Volta X is built for that moment.

TL;DR

The Volta X is an FDA-cleared direct current device that activates muscles during movement (not just at rest). Unlike TENS or EMS, it works with your nervous system to restore muscle activation, improve circulation, and maintain range of motion. Used by NFL, NBA, and Olympic athletes.

What Is the Volta X?

The Volta X is a next-generation direct current (DC) recovery device designed specifically for post-surgical rehabilitation and performance recovery.

It's FDA-cleared for:

  • Muscle activation
  • Neuromuscular re-education
  • Improved local circulation
  • Maintaining or improving range of motion

But here's what makes it different: it works while you move.

How Is It Different from TENS or EMS?

Most people are familiar with TENS (Transcutaneous Electrical Nerve Stimulation) or EMS (Electrical Muscle Stimulation). Both use alternating current (AC).

The Volta X uses direct current (DC). Here's why that matters:

Feature TENS/EMS (AC) Volta X (DC)
Current Type Alternating Current Direct Current
Works During Movement? No (causes fatigue) Yes (enhances movement)
Neuromuscular Re-education Limited Primary function
Muscle Fatigue High (tetanic contractions) Low (sub-threshold activation)
Portability Varies Carry-on friendly
💡 The Key Difference

TENS and EMS make your muscles contract passively while you sit still. The Volta X activates your muscles while you're already moving, teaching your nervous system to fire correctly again. That's neuromuscular re-education.

How Does It Work?

After ACL surgery, your nervous system "forgets" how to activate certain muscles — especially your quad. This is called arthrogenic muscle inhibition (AMI).

The Volta X uses direct current to:

  • Lower the activation threshold of dormant muscles, making it easier for your nervous system to fire them
  • Re-educate movement patterns by activating muscles during functional exercises (squats, leg raises, etc.)
  • Improve local circulation to reduce swelling and deliver nutrients to healing tissue
  • Maintain or improve ROM by reducing muscle guarding and stiffness

Think of it as a "cheat code" for your nervous system. It wakes up muscles that have been shut down since surgery.

What Does the Research Say?

Studies on direct current technology show:

  • 3x faster quad growth when combined with traditional PT vs. PT alone1
  • Improved muscle activation in post-surgical patients2
  • Enhanced tissue healing through improved circulation3
  • Reduced pain and swelling in acute injuries4

This isn't experimental. It's FDA-cleared, research-backed, and used by professional athletes across the NFL, NBA, MLB, PGA, and Olympic teams.

Who Uses the Volta X?

The Volta X is used by:

  • NFL players: Saquon Barkley, Breece Hall, Grady Jarrett
  • College athletes returning to Division 1 sports
  • High school athletes aiming for scholarships
  • Weekend warriors who want to get back to skiing, surfing, and running
  • Anyone who wants to optimize their ACL recovery

It's not just for pros. It's for anyone who's serious about recovery.

🏈 Saquon Barkley, NFL Running Back

"By the end of the first week, I had full bend back in my knee & was able to run and jump again. By the end of the 3rd week, it felt fully healed. I was able to start strengthening again."

How Do You Use It?

The Volta X is designed to be used during your exercises, not as a passive treatment.

Here's how it works:

  • Step 1: Place electrode pads on your quad (or other target muscle)
  • Step 2: Turn on the device and adjust intensity
  • Step 3: Perform your exercises (quad sets, leg raises, squats, etc.) while the device is on
  • Step 4: Your trainer guides you through the session via virtual training

Sessions typically last 30-45 minutes, 2-3x per week. You'll feel your muscles activate in ways they haven't since before surgery.

Is It Safe?

Yes. The Volta X is FDA-cleared and has been used safely by thousands of athletes.

It's designed to work with your physical therapy, not replace it. Your PT handles manual therapy, gait training, and return-to-sport testing. The Volta X handles neuromuscular re-education and muscle activation between PT sessions.

Ready to Experience the Volta X?

Apply for an in-home trial and see results in your first session.

Apply for In-Home Trial

Have questions? Book a free call — no pressure, just answers.

Frequently Asked Questions

Does it hurt?

No. Most people describe it as a tingling or buzzing sensation. You control the intensity, so you can adjust it to your comfort level.

How is it different from the stim my PT uses?

Most PTs use TENS or EMS (alternating current). The Volta X uses direct current, which allows you to move during treatment. This is critical for neuromuscular re-education.

Can I use it on my own, or do I need a trainer?

You'll work with a certified Accelerate ACL trainer via virtual sessions. They'll guide you through exercises, adjust intensity, and track your progress. This isn't a "set it and forget it" device — it's part of a complete training program.

How much does it cost?

The Volta X is included in the Accelerate ACL program. Apply for an in-home trial to learn more about pricing.

Will insurance cover it?

Some HSA/FSA accounts may reimburse for the program. We can provide documentation for you to submit to your insurance, but coverage varies by plan.

📚 Want to Learn More?

Download our free report: "The 7 Biggest Hurdles in ACL Recovery" to learn how the Volta X fits into the complete recovery process.

Download Free Report

References

1. Wright AR, et al. Effectiveness of Accelerated Recovery Performance for Post-ACL Reconstruction Rehabilitation. Hawaii J Health Soc Welf. 2019.
2. Sonnery-Cottet B, et al. Arthrogenic muscle inhibition after ACL reconstruction. Br J Sports Med. 2019.
3. Chen Y, et al. Physiological electric field works via the VEGF receptor to stimulate neovessel formation. Biol Open. 2018.
4. Rouabhia M, et al. Electrical stimulation promotes wound healing by enhancing dermal fibroblast activity. PLoS One. 2013.