Physical development, including hearing and vision, refers to physical changes in childhood, including alterations in body structures and functions. Aspects of physical development include gross and fine motor skills, the degree or quality of the child's motor and sensory development, health status, and physical skills or limitations. In addition, physical development interacts with psychological, behavioral, and social aspects of the developing child. Physical development is typically measured through the use of growth charts and physical indicators (such as height for weight and head circumference); assessment of sensory functioning, including hearing and vision; and, assessment of motor development.
Motor development, as with other areas of development, occurs in an orderly, predictable sequence of events for most children, although the rate and age of motor skill attainment varies from child to child. The process of motor development depends on the maturation of the central nervous system and muscular
system. As these systems develop, a child's ability to move progresses. Motor milestones are defined as the major developmental tasks of a period that depend on movement by the muscles. Gross motor development involves skills that require coordination of the large muscle groups (e.g., sitting, walking, rolling,
standing, etc.). Fine motor development is concerned with the coordination of smaller muscles of the body, including the hands and face. Fine motor skills use the small muscles of both the hands and the eyes for performance.
Developmental motor disorders are manifested by mild to severe abnormalities of muscle tone, movement, and motor skill acquisition. These include global developmental delays, hypotonia, hypertonia, and mild neuromotor dysfunction. Delays in motor development and clinical indicators of motor
disorders or a diagnosis of motor disorders may be associated with delays or impairments in cognitive development.
https://www.health.ny.gov/community/infants_children/early_intervention/memoranda/2005-02/eligibility_criteria.htm
Motor development, as with other areas of development, occurs in an orderly, predictable sequence of events for most children, although the rate and age of motor skill attainment varies from child to child. The process of motor development depends on the maturation of the central nervous system and muscular
system. As these systems develop, a child's ability to move progresses. Motor milestones are defined as the major developmental tasks of a period that depend on movement by the muscles. Gross motor development involves skills that require coordination of the large muscle groups (e.g., sitting, walking, rolling,
standing, etc.). Fine motor development is concerned with the coordination of smaller muscles of the body, including the hands and face. Fine motor skills use the small muscles of both the hands and the eyes for performance.
Developmental motor disorders are manifested by mild to severe abnormalities of muscle tone, movement, and motor skill acquisition. These include global developmental delays, hypotonia, hypertonia, and mild neuromotor dysfunction. Delays in motor development and clinical indicators of motor
disorders or a diagnosis of motor disorders may be associated with delays or impairments in cognitive development.
https://www.health.ny.gov/community/infants_children/early_intervention/memoranda/2005-02/eligibility_criteria.htm