Evaluation of validity and reliability of the Wii Balance Board for assessment of the static balance of obese and non-obese girls

Document Type : Research Paper

Authors

1 Department of Physical education and sport science, National University of Skill (NUS), Tehran, Iran

2 Department of motor behavior, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran

10.22080/jsmb.2024.19918.3442

Abstract

Background and Purpose: In recent years, the use of the Wii Balance Board as a tool for assessing balance has increased and as a result, its validity and reliability have been studied by researchers in different societies. So, the aim of this study is determine validity and reliability of the Wii Balance Board for assessment of static balance of obese and non-obese. Methodology: The statistical population consisted of girl students who are not studying the physical education discipline of Dr. Shariati Vocational and Technical Girls College. Forty 18-20 years old girls with normal and over 30 Body Mass Index selected by random sampling from these subjects. After sampling, all participants participated in the static balance test of the Wii Balance Board and stork test. After a week, the Wii balance test has repeated to determine reliability of the device, also the data has been compared with the stork test to determine validity. After determining the normality of the data by the Shapirovilk test, Cronbach's alpha test was used to determine temporal reliability and Pearson's correlation coefficient has been used to determine the reliability of the device. P<0.05 was considered statistically significant. Results: The findings confirmed the validity and reliability of Wii balance board in static balance assessment in both groups (ICC normal BMI = 0.749, r normal BMI = 0.829; ICC over 30 BMI = 0.854, r over 30 BMI = 0.889). Conclusion: The Wii balance board appears to be an inexpensive and portable alternative to assessing static balance for obese and non-obese girls. This study can fill part of the research gap due to the lack of validity and reliability of the Wii Balance Board in internal studies, as well as the general lack of validity and reliability of this tool for obese people.

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