In addition to my 3 days a week weight training sessions (m,w,f) and my 5 days a week boxing training sessions (m-f), is it ok if I do 3 days a week (tues,thurs,sat) of running on the treadmill? I plan on running for 20 minutes at a time. I will gradually try to increase the pace each session, starting at 6 mph. In a couple of weeks maybe I'll work up to 7 mph. Tues and thurs I will do this right after my boxing training and saturday I will do this in the morning. My goal is to get into boxing shape for a competition in November.