DMI and CME evidence: the critique and the response

A critical review published in Pediatric Physical Therapy in January 2026 concluded that neither Dynamic Movement Intervention (DMI) nor Cuevas Medek Exercises (CME) is supported by well-designed studies, and that both rest on theoretical foundations that run counter to contemporary motor learning principles.

What the review did

The review, published in the peer-reviewed journal Pediatric Physical Therapy (Volume 38, Issue 1, Pages 138–143), examined the theoretical basis of DMI and CME and the evidence offered in support of each. For CME, the authors reviewed the research sources that CME's founder, Ramón Cuevas, provided when asked, supplemented with Google and Google Scholar searches. For DMI, they report finding no citations in Google Scholar or medical research databases.

What it found

The authors identified no well-designed experimental studies of either approach, only descriptive evidence. For CME, despite five decades of use, they found a few single-child case reports and two small comparative studies they judged to be at very high risk of bias. The sources CME's founder provided were a Chilean journal abstract that described the approach but reported no outcomes, a case report of a child with neonatal hypoxic-ischemic encephalopathy, and a nonrandomized study comparing CME with Bobath therapy in seven children per group. The review also found two further case reports and a second comparative study, in children with autism, about which it raised serious concerns over bias, reporting accuracy, and the journal's lack of peer review. For DMI, which was introduced in 2021, the only publication the review identified was a single conference abstract describing two children with spinal muscular atrophy who received DMI after gene replacement therapy.

The review placed both interventions at Level 5 on an evidence scale adapted from Sackett, the lowest level, which the authors define as "no evidence" because there are no well-designed experimental studies, only descriptive evidence.

The review also argued that both approaches rely on reflex-hierarchical models of motor control, an understanding of motor development that has been largely superseded by contemporary motor learning principles. It raised ethical concerns about therapists legitimizing interventions that lack evidentiary support and noted the financial burden on families who pay out of pocket for intensive therapies that may not be covered by insurance.

A response from DMI's co-founders

In April 2026, the same journal published a letter to the editor from the co-founders of DMI Therapy (Volume 38, Issue 2, Pages 335–337). The letter argued that the critique was not grounded in subject-matter expertise and aimed to clarify DMI's scientific foundations. It did not present new empirical evidence for DMI's effectiveness.

What this review does not tell you

This review is a narrative critique, not a new study. It did not enroll any participants, test any intervention, or collect any data. It represents the authors' assessment of the existing literature, not a systematic review or meta-analysis. Its arguments about theory and ethics are the authors' own, and DMI's co-founders dispute them. Its finding about the evidence has since been tested more formally: in a July 2026 reply in the same journal, several of the critique's authors, joined by other researchers, reported a systematic search of four medical research databases that found no systematic reviews, randomized controlled trials, or observational studies of DMI.

The review also does not address the question of whether DMI or CME might be effective, only that convincing evidence of effectiveness has not yet been published. An absence of evidence is not evidence of absence, though it does mean that no family or clinician can currently point to published research as proof that either approach works. The two approaches differ in age. CME was developed in 1972; DMI was co-founded in 2021 by physical therapists previously certified in CME. The review reports that in 2024, more than 3,300 therapists were trained in DMI in more than 61 countries, uptake that, in the authors' words, "precedes any acceptable evidence of efficacy or effectiveness."

The completed randomized trial comparing DMI to Bobath (NCT07238634), which enrolled 58 children with spastic diplegic cerebral palsy and finished data collection in June 2026, has not yet published results. If and when those results appear, they will be among the first controlled outcome data on DMI to be published.

Why it matters for parents

If you are considering DMI for your child, this review is worth knowing about, not because it proves DMI does not work, but because it gives you a realistic picture of where the evidence stands. Some clinics may describe DMI as evidence-based or scientifically supported; this review makes clear that no published research yet meets that standard.

A useful conversation with a provider includes asking what evidence exists, what the limitations of that evidence are, and on what basis the provider recommends one approach over another. A therapist who answers those questions directly is demonstrating the kind of transparency that matters more than any single treatment method.

Sources

• "Where's the Evidence? Challenging Therapists to Stop Legitimizing Dynamic Movement Intervention and Cuevas Medek Exercises." Pediatric Physical Therapy 38(1):138–143, January 2026. DOI: 10.1097/PEP.0000000000001261
• "Letter to the Editor: Clarifying the Scientific Basis and Clinical Relevance of DMI Therapy." Pediatric Physical Therapy 38(2):335–337, April 2026. DOI: 10.1097/PEP.0000000000001294
• "Letter of Response to Clarifying the Scientific Basis and Clinical Relevance of Dynamic Movement Intervention Therapy." Pediatric Physical Therapy 38(3):403–404, July 2026. DOI: 10.1097/PEP.0000000000001310
• Comparative Effects of Dynamic Movement Intervention and Bobath Approach on Neuromuscular Development in Spastic Cerebral Palsy. ClinicalTrials.gov identifier NCT07238634. Completed June 2026; results not yet posted.