Real quick! What helps melt fat off your body: HARD WORK! This is the best kept secret, it takes hard work, determination and the willing to get to that next level to make that happen. Yes, High Intensity Interval Training or HIIT will help a great deal, but you are going to need some professional assistance if you are new to this type of training or you have not trained at all. If you are novice to this type of training, it is going to take a good base for you to be able to get tot he next level.
But yes, if you are ready to start training hard, you have hired a Portland Oregon personal trainer or coach, then you are ready for an experience! The experience will be challenging, but your workouts will take everything you got, but stick with it. Stick with it, practice safe form and bio-mechanics, stop when you need to stop, but finish the set or timed sequence. You are going to sweat a lot, you are going to have lactic acid burn, but believe me, you will see results.