Figure 3From: Assessment of Joystick control during the performance of powered wheelchair driving tasksUniaxial and Biaxial interpretations of joystick displacement and combined excursion for a typical trial. A: Uniaxial × (left/right) and Y (forward/backward) components of joystick displacement from the central resting position plotted over time during a single trial from the Turns 90° While Moving Forward. B: Biaxial (x and y components combined) representation for joystick excursions for the same trial.Back to article page