Reformer Pilates has become very popular in the UK. It uses a machine with a moving carriage, springs, straps, and a foot bar. Many people like it because it is low impact, but it still gives a full-body workout. However, experts now say that injuries are increasing as the business grows quickly. (theguardian.com)

One reason is the machine itself. Balanced Body, a major Pilates equipment company, says that if exercises are taught badly, users can lose balance, coordination, and control on the moving carriage. EMD UK, the national body for group exercise, also warns that reformer classes have special risks. Problems can come from the wrong spring tension, poor body position, loose ropes, or advanced standing and kneeling moves. In a busy group class, it is harder for one teacher to notice every mistake. (s3.amazonaws.com)

Another reason is weak control of teacher quality. The Guardian reported on April 4, 2026, that Pilates is not legally regulated in the UK, so some studios may use instructors with limited training. EMD UK says that a class sold as “Reformer Pilates” should be taught by someone who already has a Level 3 mat Pilates qualification, because reformer work grows from the original mat method. EMD UK also recommends small classes—ideally six people, and no more than ten—plus intro lessons for beginners, equipment checks, and careful supervision. (theguardian.com)

This does not mean reformer Pilates is bad. When it is taught well, it can still be a safe and useful exercise. The real problem is that demand has grown faster than good teaching and safety systems. For beginners, it is smart to ask a few simple questions before joining: How big is the class? What training does the instructor have? Is there a first lesson for new students? A trendy workout is only truly helpful when safety grows with popularity. (theguardian.com)