Time-varying signal analysis to detect high-altitude periodic breathing in climbers ascending to extreme altitude

Garde, A; Giraldo, B F; Jané, R; Latshang, T D; Turk, A J; Hess, T; Bosch, M M; Barthelmes, D; Merz, T M; Pichler Hefti, J; Schoch, O D; Bloch, K E

doi:10.1007/s11517-015-1275-x

Citations

Citation copied

Garde, A., Giraldo, B. F., Jané, R., Latshang, T. D., Turk, A. J., Hess, T., Bosch, M. M., Barthelmes, D., Merz, T. M., Pichler Hefti, J., Schoch, O. D., & Bloch, K. E. (2015). Time-varying signal analysis to detect high-altitude periodic breathing in climbers ascending to extreme altitude. Medical & Biological Engineering & Computing, 53(8), 699–712. https://doi.org/10.1007/s11517-015-1275-x

Abstract

This work investigates the performance of cardiorespiratory analysis detecting periodic breathing (PB) in chest wall recordings in mountaineers climbing to extreme altitude. The breathing patterns of 34 mountaineers were monitored unobtrusively by inductance plethysmography, ECG and pulse oximetry using a portable recorder during climbs at altitudes between 4497 and 7546 m on Mt. Muztagh Ata. The minute ventilation (VE) and heart rate (HR) signals were studied, to identify visually scored PB, applying time-varying spectral, coherence