Cerebral palsy is the most frequent cause of physical disability in childhood. The Petö Method proposes a comprehensive pedagogical-therapeutic approach to improve functionality. Historically, the Petö Method (Conductive Education) has faced skepticism regarding its clinical efficacy. Notable reports, such as the one by the American Academy for Cerebral Palsy and Developmental Medicine (AACPDM), have previously concluded that there was insufficient evidence to support its use. However, these critiques emphasized that prior studies suffered from serious methodological deficiencies and a lack of validated measurement instruments.

Our study directly addresses these gaps by implementing the Gross Motor Function Measure-66 (GMFM-66). Unlike older scales, the GMFM-66 provides a valid and reliable estimate of motor behavior in children with CP, offering the sensitivity required to detect minimal yet clinically relevant changes.

In our results, the Petö Method is shown to be an effective intervention for improving gross motor function in children with significant levels of motor impairment. The observed changes are not only statistically significant but also clinically relevant, exceeding the minimal detectable change and promoting functional autonomy in activities of daily living.

Inclusion Criteria:

• Age between 4 and 9 years (inclusive)
• Diagnosis of spastic cerebral palsy, with motor impairment of level III and IV (Gross Motor Function Classification System - GMFCS)
• Sufficient cognitive competence to understand and execute simple commands. - - To have completed a three-month therapeutic rest period without any other type of prior therapy (to ensure the 'novelty' effect of the therapy and avoid contamination with other interventions).

Exclusion Criteria:

• The presence of severe sensory deficits and serious behavioral disorders that could interfere with the group dynamics of the intervention.

The sample consisted of thirteen pediatric patients diagnosed with cerebral palsy (CP). The inclusion criteria were age between 4 and 9 years (inclusive), diagnosis of spastic cerebral palsy, with motor impairment of level III and IV (Gross Motor Function Classification System - GMFCS), sufficient cognitive competence to understand and execute simple commands. In addition, participants were required to have completed a three-month therapeutic rest period without any other type of prior therapy (to ensure the 'novelty' effect of the therapy and avoid contamination with other interventions). Exclusion criteria included the presence of severe sensory deficits and serious behavioral disorders that could interfere with the group dynamics of the intervention. It should be noted that epilepsy under pharmacological control was not a reason for exclusion from this study.

The exclusion of a control group from this study was due to recruitment issues, as it was not possible to obtain a sample wit

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