Taylor,
For the chart referenced in this answer, I was using the Effgen text for my values. You are correct that our study guide and Campbell both say <10k – no exercise, 10k – 20k – light aerobic; >20k – resistive. The study guide and Campbell both contain more recent information/values than the Effgen text at this point, so I would use the values in the study guide and Campbell as your base and not the Effgen text. Something for us to update in the questions!
Jessica