Jonathan P. Farthing, Joel R. Krentz, Charlene R. A. Magnus
J Appl Physiol (1985) 2009 March; 106(3): 830–836. Published online 2009 January 15. doi: 10.1152/japplphysiol.91331.2008
“The objective was to determine if strength training the free limb during a 3-wk period of unilateral immobilization attenuates strength loss in the immobilized limb through cross-education…. Strength training of the free limb attenuated strength loss in the immobilized limb during unilateral immobilization. Strength training may have prevented muscle atrophy in the immobilized limb.”
http://www.ncbi.nlm.nih.gov/pubmed/19150859