# Measures of Motor Function Keywords: motor function, SMA, CHOP-INTEND, HINE, HFMSE, 6-MWT, RULM, spinal muscular atrophy > This page provides an overview of various motor function assessment tools used in the context of spinal muscular atrophy (SMA), including downloadable resources for clinicians and details about their specific applications based on patient characteristics. ## Details - [Introduction](#): Overview of SMA and its relevance to motor function assessment. - [Genetic Cause](#): Explanation of the genetic basis of SMA. - [Natural History](#): Description of the progression of SMA over time. - [Measures of Motor Function](#): Overview of scales used to assess motor function in SMA. - [CHOP-INTEND](#): A tool for assessing axial and peripheral muscle strength in non-sitters of any age. - [HINE](#): A scale for evaluating milestones and cranial nerve function in patients aged 2–24 months, including non-sitters, sitters, and walkers. - [HFMSE](#): A test for assessing gross motor function in sitters and walkers aged over 2 years. - [6-MWT](#): A measure of gait and fatigue in walkers aged over 4 years. - [RULM](#): A tool for evaluating upper limb strength and precise movements in patients aged over 30 months, including non-sitters, sitters, and walkers. - [Clinical Study Programmes](#): Information about SPINRAZA clinical trials and real-world evidence studies. - [References and Abbreviations](#): Definitions of key terms and references to supporting studies.