Answer
The reason for the tightness is rigor mortis. The myosin cross bridges are "locked on" to the actin because of the lack of ATP necessary for release. No, peak rigidity occurs at 12 hours and then gradually dissipates over the next 48 to 60 hours as biological molecules begin to degrade.
Work Step by Step
The reason for the tightness is rigor mortis. The myosin cross bridges are "locked on" to the actin because of the lack of ATP necessary for release. No, peak rigidity occurs at 12 hours and then gradually dissipates over the next 48 to 60 hours as biological molecules begin to degrade.