1. Electromyographic activity of selected trunk muscles during dynamic spine stabilization exercises 
Gary M. Souza, DPT, OCS, Lucinda L. Baker, PhD, PT, Christopher M. Powers, PhD, PT 
Archives of Physical Medicine and Rehabilitation 
Volume 82, Issue 11, Pages (November 2001)
DOI: /apmr
Copyright © 2001 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

2. Fig. 1
(A) Starting position for level 1 of the Dying Bug exercise. (B) Subject performing level 1 of the Dying Bug exercise, at the end of phase 1.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /apmr )
Copyright © 2001 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

3. Fig. 2
(A) Starting position for level 1 of the Quadruped exercise. (B) Subject performing level 1 of the Quadruped exercise, at the end of phase 1.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /apmr )
Copyright © 2001 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

4. Fig. 3
Mean electromyographic activity as a percentage of MVIC, of the right erector spinae (ES), gluteus maximus (GM), rectus abdominus (RA), and abdominal oblique (OB) muscles during the 4 phases of the Dying Bug exercise. Error bars represent 1 SE.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /apmr )
Copyright © 2001 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

5. Fig. 4
Mean electromyographic activity as a percentage of MVIC, of the right erector spinae (ES), gluteus maximus (GM), rectus abdominus (RA), and abdominal oblique (OB) muscles during the 4 phases of the Quadruped exercise. Error bars represent 1 SE.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /apmr )
Copyright © 2001 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions