Inspiratory Muscle Training, Altitude, and Arterial Oxygen Desaturation: A Preliminary Investigation

“Specific inspiratory muscle training (IMT) has been shown to significantly attenuate the fall in arterial oxygen saturation (SpO2) during exhaustive exercise while breathing a hypoxic gas mixture of 14% oxygen. The aim of this study was to assess the impact of IMT on resting oxygen saturation over a range of altitudes in healthy individuals.”

Conclusion:

“IMT can attenuate the fall in resting oxygen saturation, but only at altitudes of 4880m and above. Conversely, IMT had no effect on resting levels of dyspnea as measured by the Borg Score.”

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