# WHO Motor Milestones Keywords: motor milestones, gross motor development, World Health Organization, developmental milestones, SMA, healthcare professionals > This page provides information about the World Health Organization's (WHO) Motor Milestones, which outline key developmental achievements in gross motor skills expected in healthy children by 24 months of age. It is intended for healthcare professionals in the UK and Ireland. ## Details - [Measures of Motor Function](#): Overview of tools and methods used to assess motor function in patients. - [HINE](#): Details about the Hammersmith Infant Neurological Examination for evaluating motor function in infants. - [HFMSE](#): Information on the Hammersmith Functional Motor Scale Expanded for assessing motor function in individuals with SMA. - [WHO Motor Milestones](#): Description of six major developmental motor milestones expected by 24 months of age. - [CHOP INTEND](#): Explanation of the Children's Hospital of Philadelphia Infant Test of Neuromuscular Disorders for assessing motor function. - [6MWT](#): Details on the Six-Minute Walk Test for evaluating endurance and mobility. - [ULM](#): Overview of the Upper Limb Module for assessing arm function in patients with neuromuscular disorders. - [RULM](#): Information on the Revised Upper Limb Module for detailed assessment of upper limb capabilities. - [Prescribing information and adverse event reporting](#): Link to prescribing information and details on how to report adverse events.