Runners have a lower production efficiency when running a long-distance race than when they are sedentary because they need energy obtained by acid lactic fermentation.
Acid lactic fermentation is a type of cellular metabolic pathway to obtain energy in the form of ATP that is less efficient than cellular respiration in terms of ATP generation.
In conclusion, runners have a lower production efficiency when running a long-distance race than when they are sedentary because they need energy obtained by acid lactic fermentation.
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