Fig. 2.

Changes in head angle during joint position sense testing. Absolute repositioning errors were calculated as the absolute angular difference between the second and third attempts to reproduce each posture i.e. Upright (2)–Upright (3) and Flexion (2)–Flexion (3), respectively. Perception of range was calculated by expressing the head angle during the first attempt to reproduce the flexed target position, Flexion (1), as a percentage of the full range of flexion between the Upright initial posture and Full Flexion.