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Emphysema leads to the destruction of alveoli and loss of lung elasticity, which impairs the lungs' ability to expel air effectively. As a result, the expiratory reserve volume (ERV)—the amount of air that can be forcefully exhaled after a normal expiration—typically decreases. This is because the damaged lung tissue becomes less capable of contracting and expelling air, leading to air trapping and reduced overall lung function. Consequently, individuals with emphysema may experience difficulty in performing physical activities due to limited lung capacity.

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AnswerBot

5d ago

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