Dr. Dieter Gebauer1*, Professor Raymond Allan Williamson1, Associate Professor Karen Elizabeth Wallman2, Dr. Brian Dawson
To determine if there is any difference in ventilatory performance in individuals with craniofacial cephalometric landmarks associated with obstructive sleep apnoea during sub-maximal and maximal exertion in elite athletes. Twenty-seven, male, team-sport athletes, underwent facial cephalometric assessment and were graded into Class 1 (N = 14), Class 2 (N = 10) or Class 3 (N= 3) facial skeletal profiles. Posterior airway space (PAS), soft palate length (PNS-P) and hyoid to mandibular plane length (MP-H) were also measured. Each athlete then completed a graded exercise test (GTX) to exhaustion on a treadmill. Minute ventilation (L�?· Min-1) was measured during the GTX at intensities that equated to 10km.h-1, 12km.hr-1 and subjective maximal effort. A comparison of cephalometric landmarks and ventilation was made. No interpretable statistically significant results were found. There was no relationship between airway cephalometric parameters and ventilatory performance.
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