1. Craniocervical Orientation Affects Muscle Activation When Exercising the Cervical Extensors in Healthy Subjects 
James M. Elliott, PT, PhD, Shaun P. O'Leary, PT, PhD, Barbara Cagnie, PT, PhD, Gail Durbridge, MSc, Lieven Danneels, PT, PhD, Gwendolen Jull, PT, PhD 
Archives of Physical Medicine and Rehabilitation 
Volume 91, Issue 9, Pages (September 2010)
DOI: /j.apmr
Copyright © 2010 American Congress of Rehabilitation Medicine Terms and Conditions

2. Fig 1
Dynamometry method used to perform the (A) cervical extension in CCN and (B) cervical extension in CCE exercises.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2010 American Congress of Rehabilitation Medicine Terms and Conditions