Taken from a Gamestop article:

“We [at EA] think we can take a more Western approach to fitness, something a little more active that gets you moving,” he said. McCarthy then described how EA is planning a new peripheral for an unnamed fitness game which will fasten Wii Remotes to players’ bodies. Besides position, the add-on will help the Wii Remote “measure intensity, how strong your thrusts are, [and] how high you jump.”