Hypoxia exaggerates inspiratory accessory muscle deoxygenation during hyperpnoea
K Katayama, Y Suzuki, M Hoshikawa, T Ohya… - Respiratory Physiology …, 2015 - Elsevier
The purpose of this study was to elucidate inspiratory accessory muscle deoxygenation and
myoelectric activity during isolated volitional hyperpnoea under hypoxic conditions. Subjects
performed voluntary isocapnic hyperpnoea (tidal volume= 30–40% of forced vital capacity,
breathing frequency= 60 breaths/min) in normoxia [inspired gas fraction (F IO 2)= 0.21] and
hypoxia (F IO 2= 0.10–0.12). Muscle deoxyhemoglobin/myoglobin (Deoxy-Hb/Mb) and
muscle oxygen saturation (Sm O 2) using near-infrared spectroscopy and surface …
myoelectric activity during isolated volitional hyperpnoea under hypoxic conditions. Subjects
performed voluntary isocapnic hyperpnoea (tidal volume= 30–40% of forced vital capacity,
breathing frequency= 60 breaths/min) in normoxia [inspired gas fraction (F IO 2)= 0.21] and
hypoxia (F IO 2= 0.10–0.12). Muscle deoxyhemoglobin/myoglobin (Deoxy-Hb/Mb) and
muscle oxygen saturation (Sm O 2) using near-infrared spectroscopy and surface …