BookMarking Page - Rial pressure (Figure 1). The StO2 signal decreased during ventilatory failure until Rial stress (Figure 1). The StO2 signal decreased throughout ventilatory failure till the patient was on help once more. Conclusions NIRS was sensitive to respiratory muscle fatigue but additional investigation is in method to assess its predictive capability. Reference 1. Moalla W, et al.: Respiratory muscle deoxygenation and ventilatory threshold assessments employing near infrared spectroscopy Wed, 11 Jul 2018 21:24:38 UTC en