anaerobic respiration causes a build up of lactic acid in your muscles which causes cramp.
Both occur anaerobically, or with exercise, but lactic acid occurs in muscles (you know that burning sensation after muscle fatigue? It's from lactic acid buildup in muscles) and alcoholic fermentation occurs by yeast. So basically, the main thing that they have in common is just that they occur anaerobically.
Anaerobically refers to a process or organism that operates without the presence of oxygen. This can occur in situations where oxygen is not available, such as in deep ocean environments or during intense exercise when muscles rely on anaerobic metabolism.
Oxygen Debt
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lactate
Anaerobic exercise uses about 10 times more energy than aerobic exercise, and you have more "fuel" available for aerobic exercise. Anaerobic exercise also produces lactic acid, which is what causes your muscles to burn.
Humans never breathe anaerobically. Respiration in cells can occur without adequate oxygen, but lactic acid builds up as a byproduct, and can be destructive. This is why your muscles ache after exercise. After you stop, heavy breathing increases oxygen which in turn breaks down the lactic acid, restoring equilibrium.
After exercise muscles fill up with lactic acid. a cool down is always essential after exercise. preferably stretching to release the acid which causes muscle pain.
Muscle cells can respire anaerobically during intense exercise when there is not enough oxygen available to meet the demands for energy. This leads to the production of lactic acid as a byproduct. Anaerobic respiration helps provide quick bursts of energy when oxygen is limited, but it is less efficient than aerobic respiration.
Your breathing speeds up when you exercise in order to get oxygen to your muscles and heart.
Your muscles swell up after exercise. This happens largely because there is increased blood supply to the muscles. Resting muscles get half litre of blood per minute. After exercise the muscles get twenty litres of blood per minute.
the muscles produce lactic acid which then relieves the muscles but it results in muscle cramps