Cerebral and Muscle Oxygenation During Intermittent Hypoxia Exposure in Healthy Humans
نویسندگان
چکیده
منابع مشابه
Dietary nitrate improves muscle but not cerebral oxygenation status during exercise in hypoxia.
Exercise tolerance is impaired in hypoxia, and it has recently been shown that dietary nitrate supplementation can reduce the oxygen (O(2)) cost of muscle contractions. Therefore, we investigated the effect of dietary nitrate supplementation on arterial, muscle, and cerebral oxygenation status, symptoms of acute mountain sickness (AMS), and exercise tolerance at simulated 5,000 m altitude. Fift...
متن کاملEffects of acute hypoxia on cerebral and muscle oxygenation during incremental exercise.
To determine if fatigue at maximal aerobic power output was associated with a critical decrease in cerebral oxygenation, 13 male cyclists performed incremental maximal exercise tests (25 W/min ramp) under normoxic (Norm: 21% Fi(O2)) and acute hypoxic (Hypox: 12% Fi(O2)) conditions. Near-infrared spectroscopy (NIRS) was used to monitor concentration (microM) changes of oxy- and deoxyhemoglobin (...
متن کاملLong-term intermittent hypoxia increases sympathetic activity and chemosensitivity during acute hypoxia in humans.
We determined the effects of 10 daily exposures of intermittent hypoxia (IH; 1 h day(-1); oxyhaemoglobin saturation = 80%) on muscle sympathetic nerve activity (MSNA, peroneal nerve) and the hypoxic ventilatory response (HVR) before, during and after an acute 20 min isocapnic hypoxic exposure. We also assessed the potential parallel modulation of the ventilatory and sympathetic systems followin...
متن کاملCerebral Processes Mediating Muscle Fatigue in Healthy Humans
to be co-examiner, for his interest in this thesis. I am heartily grateful to Dr. Kai Lutz for providing me indispensable and irreplaceable support during the last few years. I am deeply indebted not only for the share of his enormous scientific experience and knowledge, but also for his encouragement, confidence and comprehension. I would like to thank Prof. Dr. Lutz Jäncke for the work collab...
متن کاملEarly Life Exposure to Chronic Intermittent Hypoxia Primes Increased Susceptibility to Hypoxia-Induced Weakness in Rat Sternohyoid Muscle during Adulthood
Intermittent hypoxia is a feature of apnea of prematurity (AOP), chronic lung disease, and sleep apnea. Despite the clinical relevance, the long-term effects of hypoxic exposure in early life on respiratory control are not well defined. We recently reported that exposure to chronic intermittent hypoxia (CIH) during postnatal development (pCIH) causes upper airway muscle weakness in both sexes, ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Sleep
سال: 2016
ISSN: 1550-9109,0161-8105
DOI: 10.5665/sleep.5830