I thought it was snake oil, but for a variety of reasons, wanted to support the provider, so I booked my horse a session.
I don’t think it did a damn thing for symptom relief. However, I did observe during the session that his muscles were engaging in different ways in response to the stimulation- not twitching, which the provider indeed said meant “too much for this area, needs turned down,” but his standing posture improved. Particularly, midway through and after the session, he engaged his abdominals and lifted his back, similar to how he would do so if working through from the hocks. He remained engaged in his core, but relaxed in his affect, for the remainder of the session. By contrast, he gets sick of me asking for belly lifts after about a minute.
I have a 26 year old semi-retired horse. He’s not working through from the hocks anymore so I was interested in whether PEMF was offering some benefit to him in activating the muscles to help him keep his baseline fitness. My husband came upon a study on this in humans while he was at work but I don’t have the citation handy.
OP, I think there are a lot more veterinary solutions available to help your horse, that have a lot more science behind them for their intended purpose, than this does. And comparatively, good diagnostics and targeted treatment will probably be cheaper over time than a bunch of these sessions. For what it’s worth, I don’t love stall rest for an SI issue, if that is the issue. I’d rather let the horse move around in a low-impact way so the rest of his tissues stay strong enough to support the SI in whatever your vet is doing to make it hurt less. However, I do think that a good veterinary chiropractor can make a lot of difference in these issues. Look for someone who pairs whatever adjustments they’re doing with suggestions for stretches or particular fitness work that you can do with the horse to help the muscles adjust and support the skeletal structure.