1.     Title: Development of Ultrasound Based Techniques for Measuring Skeletal Muscle Motion
Author: Jason I. Silver. Thesis for Master of Applied Science. August 2009
Ottawa-Carleton Institute for Electrical and Computer Engineering
Department of Systems and Computer Engineering, Carleton University Ottawa, Ontario, Canada
http://www.sce.carleton.ca/faculty/adler/publications/2009/jsilver-2009-MASc-thesis.pdf

2.     Title:  Altered contractile properties of the gastrocnemius muscle poststroke
Author(s): Fan Gao and Li-Qun Zhang. J Appl Physiol 105: 1802-1808, 2008.