Following endurance training,afterload decreases during maximal exercise because there is a decrease in sympathetic vasoconstrictor activity in the arterioles of the exercising muscles.

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Endurance training improves the efficiency of oxygen delivery to the muscles by reducing the resistance to blood flow in the arterioles. This is due to a decrease in sympathetic vasoconstrictor activity, which leads to a decrease in afterload during maximal exercise.

Following Endurance Training,afterload Decreases During Maximal Exercise Because There Is