No, it is discussed.
Track your heart rate as you exercise. Find the point where symptoms appear and target exercise at 10 below that point. After a few weeks, try increasing your heart rate a bit to see if it trigger symptoms. if it does not exercise at that rate for a few weeks then increase your effort and heart rate again.

The Buffalo Protocol is focused on returning to play, not concussion recovery. Balance, reaction time, focus/concentration and such are assessed separately.