I have to wear inserts (orthotics) in my trainers; can I still run with these in?

 In

Definitely, yes! If you wear inserts to correct a subtle change in you gait pattern, (this is very common as many people have a walking pattern where their feet pronate or supinate), then you should always wear these inserts during the program and again for the day of the event. This will be perfectly normal for you and so don’t change anything!