Evaluation of Respiratory Parameters in Runners with and Without Iliopsoas Tightness
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Abstract
Tightness in this muscle has been hypothesized to influence diaphragmatic movement and, consequently, respiratory function. This cross-sectional comparative study aimed to evaluate the potential relationship between iliopsoas muscle tightness and pulmonary function in runners. A total of 46 collegiate runners were recruited and stratified into two groups based on the presence or absence of iliopsoas tightness, as determined by the Modified Thomas Test. Pulmonary function was assessed using standardized spirometric parameters, including Forced Vital Capacity (FVC), Forced Expiratory Volume in one second (FEV1), and the FEV1/FVC ratio. Statistical analysis using MANOVA revealed no significant differences (p > 0.05) between the two groups across all measured respiratory parameters. These findings suggest that while the iliopsoas and diaphragm may be anatomically and biomechanically interconnected but iliopsoas tightness does not significantly impair pulmonary functions in healthy, trained runner.
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