Reformer Pilates has become one of the hottest fitness trends in the world. ClassPass says Pilates was the most-booked workout globally in 2025 for the third year in a row, with bookings up 66% year on year and more than 27 million searches. At the same time, university-based experts writing in The Conversation noted that new reformer studios were opening regularly in major cities around the world. (classpass.com)

But behind the stylish images and celebrity buzz, safety concerns are growing. In April 2026, The Guardian reported warnings from UK professional bodies that the reformer boom had created a “wild west” environment, with crowded classes, weak regulation, and more injuries. The report described falls from machines, neck pain caused by poor technique, and one case in which a Pilates teacher needed hospital treatment after a 20-kilogram tower attachment fell on her head. The Standard had already raised similar concerns in March 2025, describing classes where balance was poor, modifications were not offered, and safety seemed secondary to atmosphere and marketing. (theguardian.com)

A major issue is teacher training. CIMSPA, the UK’s professional body for sport and physical activity, says there is still no professional standard for comprehensive or reformer Pilates teacher training because agreed industry standards do not yet exist. Its guidance says the usual pathway is a Level 3 matwork qualification first, followed by extra CPD for apparatus such as the reformer. The Society for the Pilates Method makes a similar point: teachers should start with matwork, then build toward apparatus teaching with stronger knowledge of anatomy, biomechanics, and equipment safety. (cimspa.co.uk)

That does not mean reformer Pilates is unsafe by nature. The exercise itself can be valuable: experts say it is a low-impact method that may improve strength, flexibility, balance, and some rehabilitation outcomes, though research is still limited. The real lesson is simpler. A reformer is not just a trendy machine; it is equipment that demands skilled teaching. For learners and customers, the smartest question may not be “Is Pilates good for me?” but “Who is teaching it, and how well?” (medicalxpress.com)