The Ready State Virtual Mobility Coach is like having a virtual Kelly Starrett in your pocket.
First I would take a look at their mechanics, hand placement, movement pattern.
Is this a new situation or has it always been an issue?
Identify restrictions in full range of motion?
Make any changes in their technique/movement pattern?
Are they on a computer a long time at work? home?
Typing position may need adjustments for the situation to resolve.