Fast Stepping in Stroke Patients for Fall Prediction and Prevention:Control Mechanisms and Clinical Implications

Inclusion Criteria: Healthy adults * Age ang Sex are correspond with the stroke subjects(between 40 and 75 years old) * being willing to accept one-year follow-up examination * being willing to sign an informed consent approved by the Human Subjects Committee of the National Taiwan University Hospital Stroke patients * between 40 and 75 years old * stroke confirmed by ICD-10-CM (including I60, I61, I62, I63, I67, and I69) * first stroke with single side hemiplegia and received acute treatment at NTUH * being willing to sign an informed consent approved by the Human Subjects Committee of the National Taiwan University Hospital * able to step forward, laterally and backward independently without assistive device Excursion criteria: Healthy adults * \- having other neurological diseases, or moderate to severe neuromuscular or musculoskeletal disorders, or disorders from systematic diseases those would influence the belance or motor ability Stroke patients * having unstable vital sign, unconsciousness, or obvious cognitive, perception, and language impairment, and couldn't communicate with the experimenters * having other neurological diseases, or moderate to severe neuromuscular or musculoskeletal or cardiovascular disorders, or disorders from systematic diseases other than stroke