muscle fatigue lab answer key pdf
Muscle fatigue is the decline in muscle force production during repeated or sustained contractions‚ linked to lactic acid buildup‚ ATP depletion‚ and oxygen limitation. What is Muscle Fatigue? Muscle fatigue is the reduction in muscle performance during repeated or sustained activity‚ characterized by decreased strength‚ endurance‚ and contraction force. It occurs due to physiological and metabolic factors‚ such as ATP depletion‚ lactic acid accumulation‚ and oxygen limitation. During intense exercise‚ muscles rely on anaerobic respiration‚ producing lactic acid‚ which