Wii Balance Board

Wii Balance Board

The Wii Balance Board, attached to a Wii Fit demo at the Leipzig Games Convention in August 2007
Manufacturer Nintendo
Product family Wii
Type Game controller
Generation Seventh generation, eighth generation
Retail availability
  • JP: December 1, 2007
    • EU: April 25, 2008
      • AUS: May 8, 2008
        • NA: May 19, 2008

    The Wii Balance Board (Japanese: バランスWiiボード Hepburn: Baransu Wī Bōdo) is a balance board accessory for the Wii and Wii U video game consoles.[1] Along with Wii Fit,[2] it was introduced on July 11, 2007 at the Electronic Entertainment Expo.

    Design

    The top of a Wii Balance Board
    The bottom of a Wii Balance Board, with foot extensions removed

    The Wii Balance Board is shaped like a household body scale, with a plain white top and light gray bottom. It runs on four AA batteries as a power source, which can power the board for about 60 hours.[3] The board uses Bluetooth technology and contains four pressure sensors that are used to measure the user's center of balance—the location of the intersection between an imaginary line drawn vertically through the center of mass and the surface of the Balance Board—and weight. In an interview conducted by gaming web site IGN, Shigeru Miyamoto stated that the Balance Board's ability to measure weight is probably more accurate than that of a typical bathroom scale.[4]

    Although the Japanese packaging states that it is designed to support people weighing up to 136 kilograms (300 pounds) and the "Western" Balance Board up to 150 kg (330 pounds), they are actually the same board. The packaging differs due to regulatory differences between Japan and the United States. The sensors on the board can accurately measure up to 150 kg (330 pounds). The actual physical structure of the board can withstand much greater force equivalent to around 300 kg (660 pounds).[5]

    Due to the similarities between the two products, the Wii Balance Board has been compared to the Joyboard, a peripheral released for the Atari VCS in 1982 by Amiga Corporation.[6] The technology in the Joyboard was less advanced than that in the Wii Balance Board, with four directional switches instead of pressure sensors.[6]

    The manual says that the Balance Board should only be used on a hard surface or thin carpet, as thicker or softer surfaces may cause the board to operate incorrectly. A set of foot extensions is available to allow the board to be used on softer surfaces. The extension feet are included with some versions of the Balance Board, but not in European versions.

    The balance board should be used with the players' bare feet; players who wear socks may not properly grip the hard surface, and can create a danger. Novelty Wii Fit non-skid socks, which use small rubber pads that stick to surfaces, were provided to members of Club Nintendo.

    Development

    The balance board's development was tightly coupled with the development of the Wii Fit game. Nintendo initially contacted manufacturers of normal bathroom scales, but ended up building the board without their help in an effort to keep down costs. In early development models, the balance board was a simple scale with one load cell. However, the developers realized that a simple scale was not useful as a game accessory and expanded the number of load cells to two, then four. The idea to use multiple sensors was partly inspired by how sumo wrestlers weigh themselves (using two scales).[7] The shape of the balance board was initially a square, but it was decided that it was too hard to use for the exercises.

    For a large part of the development process, the board was an extension controller to a normal Wii remote.[7] The effects of this are seen in the released balance board, which acts as a Wii remote with the front button mapped to "A" and all load cells on an "extension controller".[8]

    Software

    Wii Fit is the first game to have made use of the Wii Balance Board. Shortly after Wii Fit's release, Shigeru Miyamoto noted the potential for other uses, stating that "probably the simplest and most straightforward [idea] would be a snowboarding game".[9] Miyamoto has also stated that Nintendo received "many inquiries" from third parties following the announcement of Wii Fit and the Wii Balance Board,[10] as well as receiving interest from the physical fitness industry.[10]

    We Ski by Bandai Namco Games is the first third-party game to have made use of the Wii Balance Board, in conjunction with the Wii Remote and Nunchuk attachment.[11]

    The Wii Balance Board is officially compatible with both Wii and Wii U. Only one Balance Board can be synchronized with the system at a time and the board uses the fourth player controller connection, replacing any Wii Remotes that are currently bound to that position. Due to these two limitations, there is no ability to use multiple Balance Boards simultaneously.[12] Some homebrew developers allowed the board to be unofficially supported by the Linux kernel 3.7.[13]

    Center of pressure

    Though originally designed as a video game controller, the Balance Board has become a proven tool for assessing center of pressure displacement. It is proven to be both valid and reliable. Clark et al. performed a study to prove the validity and test-retest reliability of the use of a Balance Board. The idea behind using a Balance Board instead of a force platform is the ability to “create a portable, inexpensive balance assessment system that has widespread availability.” Four standing balance tasks were used in this study including a combination of double stance, single stance, eyes open, and eyes closed. Throughout these tests the center of pressure path length was measured and compared these data to an identical study on a laboratory-grade force platform. The study found Balance Board measurements to be reliable and consistently repeatable.[14]

    Reception

    The Wii Balance Board sold 32 million units worldwide between its launch and November 2010, awarding it a new Guinness World Record for "best-selling personal weighing device". By January 2012, it had sold 42 million units.[15]

    References

    1. ↑ "Wii Fit: How To Stay Balanced", GamePro 235 (April 2008): 19.
    2. ↑ "Stay fit with Wii Balance Board". Console Watcher. 2007-11-12.
    3. ↑ "GDC 2008: Sawano on Wii Fit". IGN. February 20, 2008. Retrieved 2008-04-28.
    4. ↑ Shigeru Miyamoto (Interviewed) (July 12, 2007). E3 2007: Shigeru Miyamoto Video Interview. IGN. Retrieved 2007-07-13.
    5. ↑ Game Informer, Interview with Shigeru Miyamoto: Different weight limits in different regions for Wii Balance Board
    6. 1 2 Bogost, Ian (2007-07-15). "The Prehistory of Wii Fit". Water Cooler Games. Retrieved 2007-07-18.
    7. 1 2 "Iwata Asks: Wii fit".
    8. ↑ "Wii Balance Board specifications".
    9. ↑ "E3 2007: Nintendo Developer Roundtable". IGN. 2007-07-12. Retrieved 2007-07-13. I think there are a variety of different possibilities. Probably the simplest and most straightforward would be a snowboarding game.
    10. 1 2 "Miyamoto Roundtable full transcription". 2007-07-13. Retrieved 2007-07-14.
    11. ↑ "Bandai Namco makes an excellent decision - Family Ski supports Wii Fit board". GoNintendo. 2007-11-16. Retrieved 2007-11-15.
    12. ↑ "Wii Balance Board Operations Manual" (PDF). Nintendo. Retrieved 2010-06-01.
    13. ↑ git.kernel.org - linux/kernel/git/torvalds/linux-2.6.git/commit
    14. ↑ Clark, R. , Bryant, A. , Pua, Y. , McCrory, P. , Bennell, K. , et al. (2010). Validity and reliability of the nintendo wii balance board for assessment of standing balance. Gait & Posture, 31(3), 307-310.
    15. ↑ Whitehead, Thomas (January 10, 2012). "Wii Balance Board Enters Record Books". NintendoLife. Retrieved July 12, 2013.
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