1. Components of Hand Function in a Normal Young Adult
This video presents hand movement patterns of a normal young adult, including the approach, grasp, manipulation, and release clusters of the Erhardt Developmental Prehension Assessment short screening form (EDPA-S).

2. Atypical Hand Function in Persons with Disabilities
This video presents examples of 15 children and adults with various physical and multiple disabilities, who were evaluated with the EDPA. Their atypical arm and hand patterns are linked with their specific medical conditions, compensations they have developed, and implications for function in home, school, and community environments.

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