Originally Posted by Debra A
C 1881, Kuhne suggested Rigor was caused by a chemical act involving myosin. I'm not sure if he had it exactly, but was he along the right lines?
Yes, myosin fibers.
I've also seen is suggested that the cramp we get periodically, which is due in part to a buildup of lactic acid, also is a contributing factor in Rigor Mortis.
There are contesting opinions on this.