Muscle fatigue can greatly influence overall performance during workouts. When muscles become fatigued, their ability to generate force diminishes, leading to decreased exercise efficiency and potential injury risk. Fatigue can also impair coordination and reaction times, making it difficult to maintain proper form. In competitive settings, muscle fatigue may result in reduced endurance and output, impacting an athlete's performance. Understanding fatigue mechanisms is essential for developing training protocols that optimize recovery and enhance performance outcomes.