I recently got a chance to test out Trion:Z magnetic therapy bracelets, and put together this video review:
Spotted
As mentioned in the video, I’ve seen these bracelets over the years on Nick Matthew:

And I didn’t realize it until I started researching Trion:Z for this post, but Laura Massaro also wears these:

What are these bracelets all about? According to their website:
Trion:Z magnetic therapy bracelets combine the benefits of both powerful Colantotte magnets, and negative ions. The unique polarised technology is considered by many health professionals to be an extremely powerful form of alternative therapy.
Elsewhere on the site, they say:
magnetic therapy or the use of static magnets applied to the skin has long been rumoured to relieve the symptoms of pain and stiffness
So basically, there seems to be anecdotal evidence that these bracelets help with muscle pain and stiffness, but not ironclad scientific evidence that they are effective. Nevertheless, as I mentioned in the video, I feel somewhat attached to the one I was testing. In fact, I’m still wearing it as I type this.
Update
I received unusually strong feedback from readers on this video / post. They were not happy with my mushy handling of the pseudo-scientific product claims. Actually, I can’t tell if people were unhappy with my phrasing of it, or just generally opposed to the publicizing of products that promote health benefits without having solid scientific evidence behind them. Perhaps a little from column A, a little from column B.
There’s a section on Wikipedia with a brief discussion of the efficacy of magnetic therapy bracelets. It references one meta-study that reviewed a number of individual efficacy studies. The summary conclusion:
The evidence does not support the use of static magnets for pain relief, and therefore magnets cannot be recommended as an effective treatment.
In short, the only thing these bracelets are guaranteed to do is make you look cool*
*not a guarantee
I must admit, Squash Source was slightly rattled by the comments. “Who dares to question my devotion to the Scientific Method?” I asked myself, using my most thunderous, defensive, inner voice. “I haven’t gotten this much flak since I abducted that bus full of schoolchildren.” And so on.
I wonder why this particular product sets off peoples’ alarm bells, while squash racket models promising greater power or control, or both, through such innovations as “updated pentagonal geometry” or the like, glide through without ruffling a single feather. Won’t Squash Source readers, being uniformly Wise and Powerful, simply shrug off the excess claims of a bracelet the same way they do with unsubstantiated claims of greater power, control, grip, stability, torsion, or other factors relating to rackets and shoes? Turns out the answer is NO. Once you are dealing with purported health benefits, the scalpels come out, and your only option is to disguise yourself in a white lab coat and flee.
Thanks to everyone who left a comment.
Here are the products I mentioned in the video.
Solo
This is the one I liked best.
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Buy (UK): amazon.co.uk
Buy (US): amazon.com
Search:Duo
This is the Laura Massaro one.
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Buy (UK): amazon.co.uk
Buy (US): amazon.com
Search:Maxi Loop
This is Nick Matthew’s version.

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Buy (UK): amazon.co.uk
Search:
Benjamin says
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Hi Pierre,
In this video https://www.youtube.com/watch?v=DnEX70UXS_s of Nick Matthew being interviewed, there is a close up (at 11secs) on his Trion-Z bracelet which does not seem to be the Maxi Loop.
However, I couldn’t find that specific model on the Trion-Z website. One can definitely make out the T-Z logo on the bracelet on the close-up.
I don’t know whether these actually work or not, but magnetic impulse IS being used in the medical industry to cure things such as tendinitis, so I guess there may be something there…
Nick says
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It’s the Trion Z Camo Loop (blue).
https://www.intersport.co.uk/images/trion-z-camo-loop-acti-blue-camo-bracelet-p1768-4836_image.jpg
Steve Hufford says
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Pierre – good work. here’s a suggestion for your next foray into risky topics: are there good tart cherry juices you recommend for post-squash muscular recovery?
good luck. nice knowing you!
Pierre says
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Heh, I might stick to rackets and shoes for a while. I never heard of tart cherry juice. Is it controversial?
https://www.google.com/search?q=tart+cherry+juice+efficacy
https://www.google.com/search?q=tart+cherry+juice+taste
Pierre says
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Thanks for the comments, I thought about what you all said and updated the post.
Mac says
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Just gonna leave it here: https://en.wikipedia.org/wiki/Magnet_therapy#Efficacy
Bruno says
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There is way too much pseudoscience in sport and the bracelets are just another example of superstitious athletes at work. They are completely dubious and have no scientific basis. Don’t waste your money and don’t get attached because all you’re doing is promoting unhealthy obsessive behavior. Like Pierre said, he feels attached to it now and it wouldn’t surprise me if he plays worse without it.
Hot tip: don’t become attached to rituals, superstitiously nonsense or magnetic pseudo bracelets.