Nintendo is planning to launch in the U.S. its physical fitness product called Wii Fit for U.S. shipping in May, according to the Wall Street Journal on Wednesday.

Wii Fit is already available in Jsince last December for 8,800 yen ($75). It features a pressure-sensing mat called the "Wii Balance Board," which looks like a set of bathroom scales and can sense when a person moves and leans, enabling players to "head" virtual soccer balls and experience ski jumping on a TV screen.

The board can also be used for such activities as yoga and aerobics.

Nintendo is also planning to launch next March a new online service in the U.S. in May called WiiWare that will allow game publishers to distribute new titles over the Internet directly to users instead of on discs.

Nintendo's Wii game console has far outsold Sony's PS3 since the two consoles were launched as Nintendo's strategy to offer easy-to-play but innovative games expanded the gaming population beyond young males to women and the elderly.