Older adults demonstrate reduced performance in a Fitts' task involving cervical spine movement.

A discrete aiming head movement task was developed to replicate Fitts'movement paradigm. Movement time (MT) differences between young (age range 24-29 years, n = 8) and old adults (age range 75-85 years, n = 8) were examined. Cervical spine (CS) range of motion (ROM) was recorded.A head mounted motion capture device was used to evaluate task performance. Three amplitudes and three target widths generated nine indexes of difficulty (IDs). Global …