Relation between the IADL and physical fitness tests focusing on uncertainty of answering questionnaire in elderly women

摘要

This paper examines the uncertainty of answering questionnaire in elderly women. We derive a membership function demonstrating a robustness of the knee-raising test and height related to decreased instrumental activities of daily living (IADL) for the uncertainty of answering questionnaire. This result could be maintained if the number of movement were within range from -10 to +5 persons.