Rob - If I wanted to lose 5 pounds and I wanted to choose HIIT Sprints as opposed to jogging an hour a day to do it, how many sprints would I be doing and how long would it take each day? Assumption is that either way would get 5 pounds off in a month... Also, I know I'm asking you for a best guess and not a scientific guranteed result..... It is something I've been considering now that I'm in good enough condition to do it.

I do 30 minutes on weight machines 3 times a week and I do an hour and 30 minutes of Qigong exercises 7 days a week. My Qigong ability has taken me to a level of strength I don't think I ever had in my life, but that little bit of belly fat has been plaguing me long enough.

My wife says I need to do sit-ups. Now, I only do stomach crunches, but I wouldn't call it sit-ups. I have a fear of doing hard sit-ups because of 3 fused discs and half a tail bone removed surgically about 23 years ago....

I'm open to suggestions...