抄録
In Japan, 28.6% of the people who require nursing care are subject to prolonged bedrest. In order to prevent prolonged bedrest and improve their Activities of Daily Living (ADL), rehabilitation that promotes maintaining balance in a standing posture and walking training are effective. Here, we focus on the motions required for standing up, which are prerequisites for maintaining balance and walking. Forward and backward bending occur when standing up from a sitting or supine position, and these motions are related to a person's weakness. Patients suffering from cerebrovascular disease were selected as subjects for our experiments. The maximum angular velocity of the upper part of the body during the standing-up motion was measured and compared with the Functional Independence Measure (FIM) determined qualitatively by nurses. The sigmoid function and third-order polynomial functions were employed as mathematical models to estimate the FIM, and they showed correlations of 0.81 and 0.83, respectively. This high correlation shows that one measurement (e.g., estimate of FIM) can be used to evaluate the motions. Evaluating the measurement of motions required to stand up can provide information on how to improve ADL.