Do hot temperatures speed up rigor?

Yes, hot temperatures can speed up the onset of rigor mortis. Elevated temperatures accelerate metabolic processes and enzyme activity, which can lead to faster depletion of ATP (adenosine triphosphate) in muscle cells. As ATP levels drop, the muscles become rigid more quickly, resulting in an expedited rigor mortis process. However, extreme heat can also lead to faster decomposition, potentially complicating the rigor mortis timeline.