title: Validity and reliability of wii fit balance board for the assessment of balance of healthy young adults and the elderly.
abstract: [Purpose] Balance is an integral part of human ability. The smart balance master system (SBM) is a balance test instrument with good reliability and validity, but it is expensive. Therefore, we modified a Wii Fit balance board, which is a convenient balance assessment tool, and analyzed its reliability and validity. [Subjects and Methods] We recruited 20 healthy young adults and 20 elderly people, and administered 3 balance tests. The correlation coefficient and intraclass correlation of both instruments were analyzed. [Results] There were no statistically significant differences in the 3 tests between the Wii Fit balance board and the SBM. The Wii Fit balance board had a good intraclass correlation (0.86-0.99) for the elderly people and positive correlations (r = 0.58-0.86) with the SBM. [Conclusions] The Wii Fit balance board is a balance assessment tool with good reliability and high validity for elderly people, and we recommend it as an alternative tool for assessing balance ability.
authors.affiliation: Department of Sports Medicine, China Medical University, Taiwan (ROC).
authors.forename: Wen-Dien
authors.initials: WD
authors.lastname: Chang
authors.forename: Wan-Yi
authors.initials: WY
authors.lastname: Chang
authors.forename: Chia-Lun
authors.initials: CL
authors.lastname: Lee
authors.forename: Chi-Yen
authors.initials: CY
authors.lastname: Feng
keywords: Balance; Smart balance master system; Wii Fit balance board