One of the biggest exercise myths is that you can lose fat in an area of the body by strength training or exercising that specific body part.
The truth is that “spot reducing” and “spot toning” do not work, because we cannot dictate from where our bodies will decide to oxidize fat, nor can we change fat into muscle.
Doing triceps press-downs will not decrease the amount of fat on the backs of your arms any more than doing crunches will decrease the amount of fat on your stomachs. You will certainly gain strength and muscle mass!!
Muscle building is ESSENTIAL to burning fat. You can’t just do cardio exercises and expect some serious fat burning. Yes, muscle is denser than fat, Yes, you will see the scale go up if you have more muscle, sometimes faster than how fast you burn fat, but you will feel stronger and FITTER! You will see the changes in the mirror and in your clothes, and you will be healthier and less prone to injury.
Any Exercise Program that decreases body fat percentage will help to lose fat on your arms, just as it will help to lose fat from other areas of the body.