IFPA Trainer Practice Exam

The condition where a restricted or blocked exhalation occurs due to extreme exertion is known as ______.

1. Concentric

2. Eccentric

3. Asthma

4. Valsalva maneuver

The correct answer is: Valsalva maneuver

The condition described refers specifically to the Valsalva maneuver, which occurs when an individual attempts to exhale forcefully while keeping the mouth and nose closed, often while engaging in intense physical exertion. This maneuver increases pressure in the thoracic cavity and can lead to a restricted or blocked exhalation. It is commonly observed in activities such as heavy lifting, where individuals hold their breath and create internal pressure. This technique is often used unintentionally during strenuous activities. The other terms do not relate to the physiological response described in the question. Concentric and eccentric refer to types of muscle contractions during physical activity, with concentric involving shortening of the muscle and eccentric involving lengthening while under tension; neither describes a blocked exhalation. Asthma is a respiratory condition that causes difficulty in breathing due to airway constriction, but it is not specifically linked to extreme exertion or the maneuver described. Therefore, the Valsalva maneuver is the most appropriate and accurate term for this situation.