Describe the symptoms of muscle fatigue and why it occurs.
a. Muscle fatigue is primarily caused by overhydration, disrupting the electrolyte balance in muscle cells and leading to weakness and discomfort.
b. Muscle fatigue results from excess calcium ions in the muscle cells leading to sustained contraction, causing weakness and discomfort.
c. Muscle fatigue manifests through a burning sensation, weakness, and fatigue, often stemming from the accumulation of lactic acid due to reduced oxygen levels during muscle oxidation.
d. Muscle fatigue occurs due to inadequate protein intake, causing muscle breakdown and resulting in a burning sensation and weakness.