Decreased glycogen stores may lead to reduced release of catecholamines, slowing glycogen breakdown and impacting heart contractility.

“when there's a decrease in glycogen storages um because of the evolutionary mechanisms that humans have the brain is the boss right the brain says like I don't care about your legs but don't don't use up all the glycogen because you have to give me and the liver has to give me glycogen as well so I'm not going to shut you down completely of breaking down glycogen but I'm going to slow you down so I'm going to release less camine so that you break down glycogen now um um the collateral effect of that is the heart because the heart contractility is regulated by catac colines as well”