I lift full body three times a week (monday, wednesday, friday) and was wondering if the people in this part of the forum suggest me doing conditioning workouts 3 times a week on the offdays. I was wondering if high intensity conditioning on the off days would slow my strength progress. I figure I would ask here as since my core lifts are a bit weak I feel it is more important to get a strength base than get well conditioned yet. I do not, on the other hand want to get out of the shape I'm in right now. In terms of workouts I was thinking of doing...I was thinking HIIT sprints or something from rosstraining.com or from the conditioning part of the forum.