Table 1.

Assessment tools for tone abnormalities and movement disorders.

Hypertonia Assessment Tool (HAT) [27]	Differentiates between dystonia, spasticity, and rigidity
Modified Ashworth Scale (MAS) [14]	Measures passive resistance in the joint as perceived by the examiner Grades muscle resistance on a 6-point scale
Modified Tardieu Scale (MTS) [15,28]	Accounts for velocity
Global Dystonia Rating Scale (GDS) [27]	Rates dystonia in 14 body regions by 10-point scale
Movement Disorder Childhood Rating Scale (MD-CRS) [29]	Measures the impact of a movement disorder on activities of daily living, overall motor function, and attention/alertness level Able to detect small changes over time