1. The Effect of Visual Biofeedback on the Propulsion Effectiveness of Experienced Wheelchair Users 
Brian R. Kotajarvi, PT, Jeffrey R. Basford, MD, PhD, Kai-Nan An, PhD, Duane A. Morrow, MS, Kenton R. Kaufman, PhD 
Archives of Physical Medicine and Rehabilitation 
Volume 87, Issue 4, Pages (April 2006)
DOI: /j.apmr
Copyright © 2006 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

2. Fig 1
Wheelchair dynamometer with monitor for visual feedback on velocity, power output, and the FEF.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2006 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

3. Fig 2
The mean FEF during the push phase of propulsion, at power levels of .15 and .25W/kg, and with and without visual biofeedback. Values are mean ± standard deviation. *Significant difference in FEF between power levels.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2006 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions