What does Maximum Voluntary Ventilation (MVV) measure?

Maximum Voluntary Ventilation (MVV) is a measure of the maximum amount of air a person can breathe in and out in one minute, under voluntary control. It reflects not only the lung volume capacity but primarily the functionality and efficiency of the respiratory muscles involved in the breathing process. Therefore, it assesses the muscular mechanics of breathing, including how effectively the diaphragm, intercostal muscles, and accessory muscles work together during both inspiration and expiration.

This capability is crucial in evaluating a person's respiratory health and can indicate the functional reserve of the lungs and the muscle strength available for breathing. MVV results can help healthcare professionals understand the overall respiratory performance and can be particularly useful in diagnosing and evaluating conditions like obstructive or restrictive lung diseases.