Imagine doing wall sits for your Physical Education class. After 2 minutes, you start to feel “the burn” in your legs. What is happening in your muscles that is making them burn?

(1 point)
Responses

hydrolysis

lactic acid fermentation

alcoholic fermentation

glycolysis
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1 answer

The burning sensation you feel in your legs during wall sits after an extended period, such as 2 minutes, is primarily due to lactic acid fermentation. When muscles are exercised intensely and lack sufficient oxygen to produce energy via aerobic respiration, they shift to anaerobic metabolism, leading to the production of lactic acid as a byproduct. This buildup of lactic acid can cause the characteristic "burn."