The influence of respiratory muscle strength on the isocapnic buffering phase in elite orienteering athletes
Özet
This study aims to investigate the effect of respiratory muscle strength on the isocapnic buffering phase (IBP) in elite orienteering athletes. Orienteering is a sport that requires both physical endurance and mental focus. It demands high performance on varied terrains, and therefore, athletes are expected to have well-developed aerobic and anaerobic systems as well as respiratory functions. In the study, data on maximal inspiratory pressure (MIP), maximal expiratory pressure (MEP), and gas exchange variables from 20 elite male athletes were analyzed. The IBP was evaluated through parameters such as the ventilatory threshold (VT) and the respiratory compensation point (RCP). The IBP represents the period between the VT and the RCP, during which the body balances metabolic acidosis. According to the findings, MIP and MEP values had a significant effect on VCO₂ production at VT and RCP. However, the same relationship was not observed for maximal oxygen consumption (VO₂max ) and the IBP area. Nonetheless, a borderline significant relationship was found between MIP and the IBP phase (p< 0.055), suggesting a potential tendency that may become significant in studies with larger sample sizes.
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Telif Hakkı (c) 2025 Tuğba Cin- Banu Kabak- Gökhan Deliceoğlu- Yaşar Tunç
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