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Table 3 Skilled Reaching Rating Scale

From: The reach-to-grasp movement in infants later diagnosed with autism spectrum disorder: a high-risk sibling cohort study

Phase

Component

Sub-component

Description

Orient

Orient

A

Eyes locate target prior to movement of head/reach

B

Eyes disengage target at tactile contact

Transport

Lift

A

Initial hand lift due to flexion of the elbow

B

Digits semi-flex

C

Hand supinates approximately 30 degrees

D

Tips of digits are brought towards the midline of the body

Advance

A

Hand takes shortest path to target

B

Hand stops directly above the target

C

Trunk leans to the side opposite the reach

Pronation

A

Digits open and extend over the target

B

Knuckle on reaching hand form horizontal line

C

Elbow opens to full arm length as participant reaches

Grasp

Grasp

A

Thumb and index finger/proper grasp for target size/shape

B

Wrist extends to lift target from platform