Wii accessories. You can use a leg strap. This will allow you to see your movements on the screen. You can also get a resistance band which will allow you to adjust the intensity of the various strength exercises. The game will also take advantage of the Wii Fit Balance Board if you already own this accessory.
If you are wondering about whether to get this game or the Wii Fit game, keep in mind they serve different purposes. Wii fit focuses more on balance and yoga. EA Sports Active is all about setting up and using a personal gym within your own home.