I thought that report was sort of vague and possibly useless. I have read the stickys you pointed to and don't recall any specific information on working out causing your thc levels to rise.

A lot of the fat is probably removed with the sweat but we know for sure that fat cells are expelled in urine. If you work out wouldn't the fat cells carrying the thc leave your body when you urinate. Can you cause yourself to have a positive test when you otherwise would not have just by working out.