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U.S. Army Staff Sgt. Kayshawn Porterfield practices using a myoelectric prosthesis at Brooke Army Medical Center’s Center for the Intrepid, Joint Base San Antonio-Fort Sam Houston Feb. 21. A myoelectric-controlled prosthesis is an externally powered artificial limb that the user controls with electrical signals generated naturally with his own muscles.

PHOTO BY: Jason W Edwards
VIRIN: 190221-A-HZ730-1021.JPG
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