Sporcularda Solunum Kası Isınma Uygulamasının Hava Yolu Fonksiyonlarına Etkisi

Yükseköğretim Kurumları Destekli Proje, BAP Araştırma Projesi, 2019 - 2020

Proje Türü: Yükseköğretim Kurumları Destekli Proje
Destek Programı: BAP Araştırma Projesi
Başlama Tarihi: Aralık 2019
Bitiş Tarihi: Haziran 2020

Proje Özeti

Exercise-induced bronchoconstriction (EIB) is a transient narrowing of the airways that may occur during or following strenuous exercise, particularly in athletes exposed to high ventilatory demands. Although conventional warm-up strategies may reduce the severity of exercise-induced airway narrowing, evidence regarding their effectiveness remains inconsistent. Inspiratory muscle warm-up (IMW) has been shown to improve respiratory muscle function and reduce perceived dyspnea; however, its potential effects on airway function have not been sufficiently investigated. Therefore, this study aims to determine the effects of different pre-exercise warm-up protocols on airway function and the magnitude of exercise-induced bronchoconstriction in trained athletes.

Twenty-six male athletes, including 13 team-sport and 13 individual-sport athletes with at least three years of competitive experience and a minimum of six hours of regular training per week, will participate in the study. Each participant will complete four laboratory visits. The first visit will involve familiarization with the experimental procedures. During the subsequent visits, participants will complete three different warm-up conditions: general warm-up alone, general warm-up combined with placebo inspiratory muscle warm-up at 15% of maximal inspiratory pressure (MIP), and general warm-up combined with inspiratory muscle warm-up at 40% of MIP. Respiratory muscle strength, including MIP and maximal expiratory pressure, and spirometric parameters, including forced expiratory volume in one second (FEV₁), forced vital capacity (FVC), and FEV₁/FVC, will be assessed before and after each warm-up condition. Participants will subsequently perform a 6–8-minute exercise provocation test at approximately 80–90% of predicted maximal heart rate. Serial post-exercise spirometry will be used to quantify airway responses, with a ≥10% reduction in FEV₁ considered indicative of EIB.

It is expected that inspiratory muscle warm-up, particularly at 40% MIP, will attenuate post-exercise airway narrowing and improve respiratory muscle responses. These findings may provide a practical, non-pharmacological strategy for protecting airway function and supporting exercise performance in athletes.