All of the following factors accelerate the development of rigor mois in a dead body, EXCEPT:

Cold temperature slows the onset and progression of rigor mois. It is because of the slow onset and breakdown of ATP in cold weather. Rigor mois usually has an onset 1-2 hours after death and gets well established in the entire body in about 9-12hrs. Factors accelerating the onset of rigor mois are: Warm temperature Thin body built Aerobic exercise Strychnine poisoning (produces convulsions) Ref: Forensic Science: Fundamentals & Investigations By Anthony J. Beino, page 315.