If a weightlifter experiences muscle fatigue during a set, even with sufficient oxygen, which consequence follows from the rapid increase in hydrogen ions?

💡 Explanation

Muscle fatigue often results from increased hydrogen ion accumulation, which interferes with calcium binding to troponin and disrupts the actin-myosin cross-bridge cycle. This impairs the muscle's ability to generate force, because the contractile mechanism is directly affected by pH, therefore, force diminishes rather than being sustained, and other mechanisms are superseded.

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