The Activation and Walking Speed of the Prefrontal Cortex of the Elderly Mild Cognitive Impairment During Dual Task.

"A total of 30 subjects will perform four tasks per person for a single task (motor task) and a double task (motor task + cognitive task), and the test order will be randomly assigned. The subject's prefrontal cortex activity will be measured using fNIRS (NIRSIT, OBELAB).~The single task will be to perform a 10-meter walk test and an 8-way walk test as exercise tasks. as not affected by acceleration and deceleration. The dual task will be carried out together with the exercise task and the cognitive task. The cognitive task will be a simple calculation problem so that it can be performed without much difficulty when walking.Subjects will perform a total of three iterations and have a break of 20 seconds before each task begins."