Test-Walking the New Bioness L300 Go

Test-Walking the New Bioness L300 Go

I’ve been using a Bioness L300 for just over five years to counter my foot drop. Without the L300 strapped to my left leg, it’s difficult for me to walk more than 25 or 30 steps, even with two canes.

The L300 is a functional electronic stimulator (FES). Each time I start to lift my left leg to walk, it sends a low-intensity electrical pulse down a nerve that runs from my knee to my ankle. That pulse forces my foot to flex upward from my ankle so that my toes don’t drag. The electrical pulse replaces the signal that my brain should be sending to the nerve that my MS has blocked, and it counters my foot drop.

About six months ago, L300 manufacturer Bioness received the OK from the U.S. Food and Drug Administration to market a new model of the L300, the L300 Go. A few days ago, I had an opportunity to “test-walk” the Go, and here’s what I found.

No foot sensor needed

Photo by Ed Tobias
(Photo by Ed Tobias)

The biggest and best difference is that the L300 Go doesn’t require you to use a foot sensor in the heel of your shoe. In the original L300, the sensor is used to detect your motion as you begin to walk. It sends a Bluetooth-like signal to the cuff on your leg, telling it that you’re trying to move. The cuff then generates the pulse that stimulates the nerve in your leg and helps you to lift your foot.

That means that anytime you change shoes, you need to move the sensor to the pair that you’re going to wear. Not only is that a nuisance, there can be a lack of consistency in where you place the sensor in the shoe. Also, because insoles are different, there can be the same inconsistency in the amount of heel pressure that’s required to trigger and to end the pulse.

Naturally, you can’t use the original L300 if you’re barefoot.

3-D motion detection

Without a foot sensor, the L300 Go’s cuff detects the start of your leg motion. This is similar to the process used by the WalkAide, a competitor of the L300. Unlike the WalkAide, the L300 Go has a 3-D-motion-detection system. Not only does it detect the forward and backward motion of your leg, it also detects sideways movement and leg rotation. This allows a physical therapist to adjust the unit more precisely to make it more responsive to each patient’s unique gait. To provide this three-way detection the Go contains four electrodes, compared with the original unit’s two.

No control unit

The original L300 requires you to carry a small control unit, which you use to turn the device on and off, put it into “test mode,” and also to adjust the intensity of its pulse. With the Go, this is all done on the side of the cuff. (If you really want a foot sensor or a control unit, Bioness will sell you one. But why would you want one?)

The test walk

The Go looks and feels like the original L300. Maybe I walked a little faster with it. Maybe it triggered a little quicker. I don’t think that it allowed me to walk any further than normal. On the other hand, it was certainly nice to be able to sit in a chair without having to turn off the unit so that it wouldn’t trigger when I released the pressure on a heel sensor. Unfortunately, I forgot to test the Go walking up and down stairs. My guess, however, is that it would work better than the original unit because its trigger mechanism isn’t dependent upon heel pressure.

What’s it going to cost?

The Bioness rep told me that the Go will cost the same as the current L300. That’s about $6,200. I was also told that there would be a discount if current users wanted to upgrade, but she couldn’t say how much it would be.

Don’t count on insurance picking up the cost. Bioness apparently has had greater success recently getting insurance to pay for the L300 than when I got mine in the fall of 2012. But, it’s a fight and a lot of really good documentation is necessary. The same goes for Medicare and Medicaid. Again, don’t hold your breath waiting.

Do I plan to upgrade?

Nope, not at that price. Even with a discount, the benefit that I’d receive probably wouldn’t be enough to justify the cost of the upgrade, at least not now.

Bioness tells me that it intends to support the original L300 units for “at least the next three years.” So, I guess if my unit breaks down in 2020 or later, I may have to go for the Go.

If the L300 Go is right for you, however, Bioness expects to begin shipping it in October to patients whose doctors have given them a written order.

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Note: Multiple Sclerosis News Today is strictly a news and information website about the disease. It does not provide medical advice, diagnosis, or treatment. This content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website. The opinions expressed in this column are not those of Multiple Sclerosis News Today, or its parent company, BioNews Services, and are intended to spark discussion about issues pertaining to multiple sclerosis.


  1. Michael Davoult says:

    That is very interesting reading about this “new” model. I received my device in January of this year and wish I would have waited for the new design. My insurance paid for around 80% of the cost for the old design of Bioness Elect Stimulator.

  2. Cyndi says:

    Great article – thanks! Do you know if Bioness has a “try before you buy” program? I would definitely make the investment if a trial period proved it works for me. Thanks again for your insights.

  3. Barton says:

    I’m a current user of L300 devices for both legs. I was just told by Bioness that the electrodes (which need to be replaced every two weeks) will only be available until 2020. After that, I guess I’ll have to buy the new models and be stuck with two expensive paperweights.

    • Habeebah says:

      I found the representives very rude. I’ve had my device for two years and voiced my disappointment in the trade in. I paid cash for my device and with the trade in I would be spending close to 18k. Didn’t not like the email the phx rep sent me.
      Habeebah Abboushi

    • Ed Tobias says:

      Hi Barton,

      After reading your comment I contacted Bioness to ask about this. The company tells me that the electrodes that are used with the L300 Go can also be used with the L300. So, you (and I) shouldn’t be left holding a paperweight.

      I was also given the impression that a different device that Bioness makes, and that had an upgrade back in 2011, is still being supported. So, that 2020 “unsupport” date for the L300 may not be as firm as some of the marketing reps would like you to think it is.

      • Barton says:

        Thanks, Ed!

        I hope that’s true. I use the large cloth electrodes that have 2 snaps or connection points. It looks like the new devices have 3 snaps. Maybe they’re talking about the smaller circular electrodes or the hydrogel electrodes?

        I’ve been trying to find out what the upgrade cost but I haven’t been able to get an answer so far. If anyone here has heard anything about the upgrade cost, please share!

        • Ed Tobias says:


          I assumed that you were referring to the gel electrodes, which are what I use, so that’s what I asked about. The L300 Go actually has 4 electrode contact points which, apparently, are necessary to achieve the 4-way (rather than 2-way) adjustment for the Go. So, I’d have to guess that the cloth electrodes for the Go won’t work on the original. However, I’ll see if I can confirm that.

          As for the cost, as I wrote I was told the cost of the Go will, at least right now, will be the same as the price of the old unit, with some percentage discount for current users. I don’t know more than that, so I’d suggest that you ask Bioness Customer Service directly.

  4. Barton says:


    I have asked Bioness Customer Service directly about the percentage discount for current users. But they told me I need to talk to a particular Client Management Associate to get the answer and that person has yet to return my call from a week ago. The same person’s voicemail says for immediate assistance please contact my associate (names left out intentionally) and that person also hasn’t returned my call. Which is why I hoping someone around here had heard about the percentage discount for existing users. I guess I have until some time in 2020 to get the answer. But not dealing with the foot sensor is a pretty appealing prospect.

  5. Jean says:

    I’m also looking into the Bioness Go. I have had the L300 for 6 months and was interested in the deep discount they were offering. I have spent 2 weeks e-mailing and leaving messages on the phone(no one will return my call). I have reached other people but it seems only one woman can answer questions. She did e-mail today and said I could trade in my device and pay $4500 for the new one. How fair is this? My L300 is only 6 months old, I would expect more of an even exchange, it was hard enough to get the funds the first time . Not sure how I can do it again. Insurance pays nothing and my medical bills are high enough and now it seems that my device willnot be supported much longer. Not sure how many people will be able to afford this. I cannot even get an answer as to how much it actually costs. I have found the Rep to be extremely rude and am losing faith in this company.

    • Barton says:

      Thanks, Jean. I guess this explains why Bioness has been so reluctant about divulging the price for existing L300 users. Between phasing out support and the necessary supplies for existing L300 users and the price for the upgrade, it certainly puts the company in a pretty bad light.

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