What type of fatigue is primarily linked to reduced muscle glycogen storage?

Peripheral fatigue is primarily linked to reduced muscle glycogen storage because it specifically refers to the fatigue that originates at the level of the muscle. Glycogen is a key energy source during prolonged and intense physical activity. When glycogen stores are depleted, the muscle's ability to contract efficiently diminishes, leading to feelings of fatigue and a decrease in exercise performance.

This type of fatigue is characterized by a decline in muscle function, which occurs due to various factors, including the accumulation of metabolic byproducts and a decrease in available energy substrates. In other words, when glycogen levels drop, the muscles are unable to sustain the same level of activity, resulting in a physical sense of tiredness and an inability to exert force effectively.

While cognitive fatigue relates more to mental work and brain activity, and central fatigue involves the nervous system's capacity to activate muscles, peripheral fatigue is directly concerned with the physical state of the muscle and its energy reserves. Consequently, the connection between reduced muscle glycogen storage and peripheral fatigue is significant, highlighting the importance of glycogen in maintaining muscular performance.