4段階バランスボードテストの実用性

<p>The purpose of this study is verifying the practicality of 4-level Balance Board Test. Subjects were 197 healthy college boy. The used balance board was made of plywood (diameter=360mm, thickness=22mm), and iron cylinder (diameter=100mm, height=50mm). The bottom is grinded by the globular shape and divided into 4-levels by the size of the radius of a ball. The size of the radius of a ball was as follows. (level. 1=250mm, level. 2=200mm, level. 3=150mm, level. 4=100mm) The subjects repeated getting on and off for 30 seconds in an order from the level 1 to level 4, and compared the total of the time. Result : Normality of histogram ; As one index which shows the validity of a test, we created the histogram. When the histogram was made in sum total time to levels 1-4, it became the normal distribution type which frequency concentrates near average value. : Reproducibility ; As a result of performing a retest after two weeks to 21 equivalent to about 10% of the whole subject, the correlation coefficient of a sum total time indicated high correlation (r=0.873, p<0.001). It is thought by the method of dividing the degree of difficulty into 4-level, and judging with a sum total time from this that it was able to discriminate from the difference of each balance capability. Moreover, it is thought that the reliability of data is high also from the height of the reproducibility of a retest. Practicality : The time concerning a test is 4 minutes per one person. One balance board can be made for 6000 yen per set, is cheap compared with other expensive measuring instrument. The practicality as a field test of 4-level Balance Board Test was suggested from the result of this study.</p>