1. Stroke Center, Stroke Statistics, [2017-04-10], http://www.strokecenter.org/
2. Chung S G, Bai Z, Rymer W Z, Zhang L Q. Changes of reflex, non-reflex and torque generation properties of spastic ankle plantar flexors induced by intelligent stretching. Proceedings of 27th Annual International Conference of Engineering in Medicine and Biology Society, Shanghai, China, 2006, 3672–3675.
3. Friden J, Lieber R L. Spastic muscle cells are shorter and stiffer than normal cells. Muscle & Nerve, 2003, 27, 157–164.
4. Herring S W, Grimm A F, Grimm B R. Regulation of sarcomere number in skeletal muscle: A comparison of hypotheses. Muscle & Nerve, 1984, 7, 161–173.
5. Tabary J C, Tardieu C, Tardieu G, Tabary C, Gagnard L. Functional adaptation of sarcomere number of normal cat muscle. Journal de Physiologie, 1976, 72, 277–291.