Collectively, the current data on muscle fatigue suggest that a variety of cellular effects can ... recent evidence suggests that ADP accumulation may inhibit ATP consumption at the cross bridge. 54 ...

Rigor mortis is the stiffening of a person's muscles after death, which is caused when the body's metabolism stops and there is a depletion of adenosine triphosphate (ATP). ATP is needed in the ...

When muscle cells are viewed under the microscope ... to actin indefinitely — causing the stiffness of rigor mortis — if new ATP molecules were not available (Lorand 1953).