1. Changes in soleus motoneuron pool excitability after artificial knee joint effusion 
Jon T. Hopkins, MS, Christopher D. Ingersoll, PhD, Jeffrey E. Edwards, PhD, Mitchell L. Cordova, PhD 
Archives of Physical Medicine and Rehabilitation 
Volume 81, Issue 9, Pages (September 2000)
DOI: /apmr
Copyright © 2000 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

2. Fig. 1
Joint injury cycle. (Adapted and reproduced with permission from Stokes M, Young A, Clinical Science 1984;67:7-14. © The Biochemical Society and the Medical Research Society.)
Archives of Physical Medicine and Rehabilitation  , DOI: ( /apmr )
Copyright © 2000 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

3. Fig. 2 Injection of sterile saline into the knee capsule.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /apmr )
Copyright © 2000 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

4. Fig. 3 Position of leg for soleus H-reflex measurement.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /apmr )
Copyright © 2000 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

5. Fig. 4
Series of recordings with stepped increases in stimulus intensity. The H-reflex occurs at approximately 42msec, preceded by an M response (at approximately 17msec).
Archives of Physical Medicine and Rehabilitation  , DOI: ( /apmr )
Copyright © 2000 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions