I am new to this forum and have just started playing shadowrun after a 8-9 year long break

One questions popped up during our last session and that was modifiers to movement while injured.
It stands to reason that a person who is seriously injured can't run at full speed, but I haven't found any rules about it in 3rd ed.
So I am wondering if any of you can point me in the right direction if there are any official rules concerning this or let me know their houserules on this issue.
Hendrix