IMPACT OF INSPIRATORY MUSCLE TRAINING ON PULMONARY FUNCTION PARAMETERS IN ENDURANCE RUNNERS

This research explores how respiratory muscle training affects lung function in marathon runners who regularly compete in long-distance events. Marathon running demands exceptional endurance, yet many training programs overlook the importance of strengthening respiratory muscles. We worked with forty-five competitive marathon runners over an eightweek period, implementing a structured respiratory training program using specialized breathing devices. The participants showed remarkable improvements in their breathing capacity and muscle strength. Maximum inspiratory pressure increased by 28.4%, maximum expiratory pressure improved by 21.7%, and forced vital capacity enhanced by 12.3%. These changes were statistically significant and substantially better than the control group who continued their regular training without respiratory exercises. Our findings suggest that marathon runners could benefit considerably from incorporating respiratory muscle training into their preparation routines. This relatively simple intervention appears to strengthen the breathing muscles, improve lung capacity, and potentially enhance overall running performance. The study contributes practical insights for coaches and athletes seeking evidence-based methods to optimize endurance training programs. Keywords: respiratory muscle training, pulmonary function, marathon runners, endurance athletes, inspiratory muscle training, sports performance, exercise physiology