How does lactic acid build-up affect muscle performance?

Lactic acid build-up is a natural byproduct of anaerobic respiration, which occurs when the body engages in high-intensity exercise and lacks sufficient oxygen for complete glucose breakdown. As lactic acid accumulates in the muscles, it can lead to a decrease in pH, creating a more acidic environment. This change can disrupt the internal environment of muscle cells, inhibiting energy production and contributing to muscle fatigue.

As fatigue sets in, muscle performance decreases due to the inability of muscles to contract effectively. The accumulation of lactic acid not only hampers muscle strength and power output but also affects the overall endurance of the muscles during prolonged activities. Therefore, understanding the role of lactic acid in muscle performance is critical for athletes and trainers aiming to optimize training and recovery regimens.