Can muscle glycogen from unused tissues help supply energy to working muscles during activity?

Muscle glycogen primarily serves as an energy reserve for the muscle in which it is stored. When muscle fibers engage in activity, they draw upon their stored glycogen to meet energy demands. The idea that glycogen from "unused tissues" could contribute energy is not accurate because glycogen is not transported from one muscle to another; instead, each muscle uses its own glycogen stores directly.

In exercise, the energy supply typically comes from the muscle itself, rather than relying on glycogen stores from other muscles. Even when exercising at varying intensities, it is the glycogen from the working muscles that is utilized. Thus, the statement suggests that glycogen from unused tissues could assist in providing energy, which is not supported by how the body utilizes glycogen.

Therefore, the correct conclusion is that muscle glycogen from unused tissues does not provide energy to working muscles during activity, which supports the answer being accurate in stating this notion as false.