Abstract
We studied the relationship between the ability of recognition of object height and time and fall among 44 young people and 64 elderly local residents. We measured the distance from a 20 cm cube and cognition differences (a difference of predicted and actual value) with the Timed Up and Go test (TUG). The results show differences between the young and the elderly, especially for the group with experience of fall. After logistic regression analysis with the objective variable as "fall experience in the past 1 year", we made up a fall prediction scale from the extracted data of TUG actual value, TUG cognition differences and right hand cognition differences. From the evaluation of the ROC curve, the area below the curve was 0.801, and the two cut-off values gave sensitivity and specificity for fall of 75%, respectively. The results suggest cognition differences are an effective way of assessing risk of fall.
