Question

Why do we tired on quick exersise?

Answer 1

Hey Mate....

Here's your answer....

During quick exercise we do it so quickly that we sweat and our body get tired. Along with the quick exercise itself means that quick means fast exercise that's why we get tired, our respiration become so fast. Our muscle cell perform anaerobic respiration when we exercise.

Answer 2

━━━━━━━━━━━━

$\huge\bold{answer:-}$ During exercise the muscles work hard to lift a load. ... This is due to muscle tissue's main source of energy, called adenosine triphosphate, or ATP. As the muscles use up this energy source, they become tired and fatigued. Hence we get tired faster on quick exercise