Avoid the use of scroll.
Conventional user interfaces resort often use of scrolling to display content that cannot be displayed on one screen. In touch-screen interfaces used by the elders this technique should be avoid, not only by their declining working memory that may cause the losing of the context of the task but also because using scroll bars implies hand-eye coordination may be difficult to performing by some older users.
An example of scrolling use in a touch-screen interface that should be avoid.
Healthcare TV Based User Interfaces for Older Adults,2010
Designing touch-based interfaces for the elderly,2010
Touch Screens for the Older User,2011
Design Recommendations for TV User Interfaces for Older Adults: Findings from the eCAALYX Project,2012
Content, Elderly,Layout, Memory, Motor, Screen, Scrolling, Windows.