What is a Gross Motor Function Classification System (GMFCS)?
The Gross Motor Function Classification System (GMFCS) is a five-level classification system used to evaluate and categorize the functional abilities of children and youth with cerebral palsy (CP). Developed by Palisano and colleagues (1997), this system focuses on gross motor skills, such as sitting, walking, and the need for assistive devices, while also considering environmental and personal factors that influence motor function. Each level represents a distinct set of capabilities, ranging from independent movement (Level I) to severe limitations requiring extensive support (Level V).
This scale has also been expanded and revised to account for the development of motor skills as children grow (Palisano et al, 2007). The Gross Motor Function Classification System Expanded and Revised (GMFCS—E&R) has age bands for under 2 years, 2-4 years, 4-6 years, 6-12 years, and 12-18 years, helping clinicians assess changes in motor function over time. The system emphasizes what children can do in their natural settings rather than what they may achieve with effort or therapy.
In addition to evaluating gross motor performance, the GMFCS complements other classification tools like the Communication Function Classification System (CFCS), which evaluates communication abilities, and the Manual Ability Classification System (MACS), which assesses hand function. Together, these tools offer a comprehensive understanding of a child's capabilities and needs, ensuring tailored interventions and improved quality of life.
The GMFCS Scale PDF is designed to be used by physical therapists, occupational therapists, caregivers, physicians, and speech-language pathologists. The scale may also be used by parents, teachers, and other professionals who work with children with cerebral palsy.










