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Table 11 Collision and grazing statistics

From: Design and validation of an intelligent wheelchair towards a clinically-functional outcome

Interface

Average number of collisions per test subject

Average number of Grazing per test subject

Non-users, Vocal interface (n = 8)

1.2

0.9

Non-users, Game Joystick (n = 7)

0.7

0.1

Non-users, Keyboard (n = 8)

0.1

0.1

WC-users,Vocal interface (n = 9)

0.9

0.3