Related Experiment Video
Updated: Mar 27, 2026

Assessment of Pulmonary Capillary Blood Volume, Membrane Diffusing Capacity, and Intrapulmonary Arteriovenous Anastomoses During Exercise
Published on: February 20, 2017
Exploring cardiopulmonary parameters in athletes with exercise-induced dyspnea: a cardiopulmonary exercise test-based
Aysun Ertuna1, Şensu Dinçer2, Gökhan Metin1
1Department of Sports Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Türkiye.
Background:
Exercise-induced bronchospasm (EIB) is widely recognized as a common cause of exertional dyspnea. The accurate identification and differentiation of EIB from other causes of exercise intolerance remain challenging in clinical practice. We aimed to analyze CPET-derived ventilatory and metabolic parameters in adolescant athletes with exercise-related dyspnea to assess whether these parameters can aid in differentiating EIB from other non-EIB causes of dyspnea.
Methods:
This retrospective, observational, cohort study included 47 athletes (8-18 years old) presenting with exercise-related dyspnea. Participants were divided into EIB-positive [EIB (+)] and EIB-negative [EIB (-)] groups based on a ≥10% decrease in forced expiratory volume in 1 second (FEV
Results:
No significant differences were found between EIB (+) and EIB (-) groups in terms of baseline spirometry values. Post-exercise spirometry revealed significant reductions in FEV
Conclusions:
While EIB affects ventilatory function, athletes with exercise-related dyspnea exhibited similar CPET changes regardless of EIB diagnosis. This suggests that dyspnea in young athletes may not always be due to EIB but could result from other ventilatory adaptations. OUES and peak VO
More Related Videos
Related Concept Videos
Exercise and Cardiac Output
Sustained exercise increases the muscles' oxygen demand, which can be...
Exercise and Cardiovascular Response
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
Hyperpnea and Hyperventilation
Respiratory Volumes and Capacities I
Pathophysiology of Cardiac Performance
Cardiomyopathy II: Dilated Cardiomyopathy

