Central and Peripheral Fatigue

Skeletal muscle fatigue, characterized by a temporary decline in the ability to generate force or power output, encompasses peripheral and central components, each with distinct mechanisms and implications for physical performance. Peripheral fatigue originates in the muscle and is attributed to factors such as energy depletion, accumulation of metabolic byproducts, and impaired calcium handling, which directly affect muscle contraction efficiency. On the other hand, central fatigue involves a reduction in voluntary activation of muscles, stemming from alterations in neurotransmitter levels and neural drive from the central nervous system. Understanding the intricate balance between central and peripheral fatigue is crucial for developing strategies to enhance athletic performance, manage fatigue in clinical populations, and improve overall functional capacity. This dual perspective on muscle fatigue broadens our comprehension of the limits of human performance but also opens avenues for targeted interventions to mitigate fatigue’s impact.