Dead butt syndrome, or gluteal amnesia, is a condition that occurs when your gluteus medius gets inflamed and forgets to function normally. Our glutes aren’t designed to bear weight for long periods. Sitting for extended periods of time has been shown in multiple studies to have a major affect on how well we can contract and use our glutes effectively.
Source: Huffington Post, December 4, 2020. Link.
A good rule to remember is for every hour of sitting, you need to take 10 minutes of standing and moving around to reactivate and keep those butt muscles from falling asleep.”