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Table 2 Different experimental positions

From: Reduced inclination of cervical spine in a novel notebook screen system - implications for rehabilitation

Position 0

Straight visual axis, without gazing to the computer screen.

Position 1

Maximal extension of computer screen (38 cm upper edge of screen)

Position 2

Second extension of computer screen (33 cm upper edge of screen)

Position 3

Second extension of computer screen (31 cm upper edge of screen)

Position 4

Common notebook screen position (27 cm upper edge of screen)