In physics, there is action and reaction, and the effect is the same.
So for example, u go weight lifting to improve your arm muscles, u can do massage on the same area to achieve the same effect. Same thing for weight loss or trying to trim a certain area.
This idea is as common but has been used in commercial, particularly on slimming centres. They target a certain area with minimum exercise. So dont spoil market by sharing this secret out.
So next time, when u going for massage u can tell your wife that u are going to exercise instead. U are welcome