Why is breathing of women regarded as thoracic

cbse
breathing

#1

Why is breathing of women regarded as thoracic, while that of male as abdominal? Also state who among the two has higher vital capacity.


#2

In males, the lateral movement of thorax constitutes 25 % of breathing, while the abdominal movement accounts for 75 % breathing. Thus, it is regarded as abdominal breathing.
In women, particularly in pregnant women, the entire breathing is through lateral movement of thorax. Thus,breathing in women is regarded as thoracic.
The VC is higher in men than in women and in the young ones than in the old persons.