Dual Task Interference During Gait in People With Parkinson Disease: Effects of Motor Versus Cognitive Secondary Tasks

摘要: Background and Purpose . Exacerbation of movement disorders while doing 2 tasks (dual task performance) is a characteristic feature Parkinson disease (PD). The aim this investigation was to identify whether the type secondary (motor or cognitive) determined severity dual interference. Subjects Methods Footstep patterns for 15 people with PD comparison subjects without were compared when they walked: (1) at self-selected speed, (2) simultaneously performing motor (coin transference), (3) cognitive (digit subtraction). Gait stride length, cadence, percentage gait cycle in double-limb stance (DS) examined computerized analyzer. Results When there no second task, mean length less group (1.29 m) than (1.51 m), speed (71.47 m/min) (87.29 m/min). cadence (110.79 steps/min) (115.81 steps/min). DS greater (33.38%) (31.21%). Both groups reduced their had change from unitask performance increased. For PD, also decreased. both groups, negligible effect on decrement. Discussion Conclusion Although simultaneous compromised not major determinant