The impact of physical exertion using a treadmill on the fatigue of respiratory muscles based on the immediate response of several pulmonary functions

The study aims to:Identify the impact of physical exertion using a treadmill on respiratory muscle fatigue based on the immediate response of several pulmonary functions, including vital capacity (VC), tidal volume (TV), respiratory rate (RR), and minute ventilation (VE). The study problem is crystallized in the following question: What is the impact of fatigue on pulmonary functionswhen performing traditional physical exertion? The researcher hypothesized significant differences in pulmonary function results between the pre-test and post-test. The descriptive method was used for its suitability to the nature of the current research. The sample consisted of 9 athletes practicing track and field, specifically middle-distance running (800m - 1500m), representing the Nineveh Governorate track and field team. They were intentionally selected based on their good health, high athletic performance, and non-smoking status.Results: The findings showed significant differences in the variable of vital capacity (VC) with a probability level of (0.032), tidal volume (TV) with a probability level of (0.001), respiratory rate (RR) with a probability level of (0.001), and minute ventilation (VE) with a probability level of (0.001). The researchers concluded that physical exertion using a treadmill can cause differences in pulmonary functions, including vital capacity, tidal volume, respiratory rate, and minute ventilation.Keywords: Respiratory Muscle Fatigue, Vital Capacity, Tidal Volume, Respiratory Rate, Minute Ventilation.