Fig. 4From: Task matters: an investigation on the effect of different secondary tasks on dual-task gait in older adultsDual-task interference pattern under four different task conditions (A: Counting backward; B: Recalling list; C: Reaction time; D: Verbal fluency) for the young adults (circles) and older adults (squares). Black symbols represent the easy level of the task; gray symbols represent the difficult level of the taskBack to article page