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Transferability of Exercise Intensity Based on Muscle Oxygenation from Normoxia to Hypoxia in Ski-Mountaineering Athletes-Exploratory Study.
Sports (Basel)
December 2024
Department of Physical Education and Health in Biala Podlaska, Faculty in Biała Podlaska, Jozef Pilsudski University of Physical Education, 00-968 Warsaw, Poland.
Frequent changes in altitude and oxygen levels limit the practical application of traditionally derived exercise thresholds or training zones based on heart rate (HR) or blood lactate concentration (bLa). We investigated the transferability of a muscle oxygenation (SmO)-based intensity prescription between different hypoxic conditions to assess the suitability of real-time SmO measurements for ski-mountaineering (SKIMO) athletes during submaximal endurance exercise. A group of 15 well-trained male SKIMO athletes performed a graded-intensity run test in normoxia (87 m ASL, FiO = 20.
View Article and Find Full Text PDFChronic intermittent hypobaric hypoxia alleviates early-stage posttraumatic osteoarthritis via NF-κB/Nrf2 pathway in mice.
J Orthop Surg Res
December 2024
Department of Orthopaedic Trauma, Hebei Medical University Third Hospital, Ziqiang Road No.139, Shijiazhuang, Hebei Province, 050051, China.
Background: Posttraumatic osteoarthritis (PTOA) is directly associated with early acute articular cartilage injury. Inhibition of cartilage destruction immediately following joint damage can effectively slow or prevent PTOA progression. Therefore, we sought to determine intervention targets and therapeutic strategies in the acute stage of cartilage injury.
View Article and Find Full Text PDFShort-Term Intermittent Normobaric Hypoxia Combined with Light Exercise Improves Acclimatization of Cardiorespiratory Function in Inactive Adults.
Open Access J Sports Med
December 2024
Department of Exercise Physiology, College of Sport Sciences and Physical Activity, King Saud University, Riyadh, Saudi Arabia.
Background: Un-acclimatized individuals may experience acute altitude illness. Thus, the current study investigated the impact of short-term intermittent normobaric hypoxia (NH) combined with light exercise on the acclimatization of cardiorespiratory function to altitude in inactive adults.
Methods: This quasi-experimental study recruited 10 inactive university students (age: 26.
Oxygen saturation for the prediction of acute mountain sickness.
Digit Health
December 2024
Department of Sport Science, University of Innsbruck, Innsbruck, Austria.
We read with interest the paper on "Smartwatch measurement of blood oxygen saturation for predicting acute mountain sickness: Diagnostic accuracy and reliability" recently published by Zeng and colleagues in Digital Health. This study demonstrated good reliability and high precision for measuring peripheral oxygen saturation (SpO) using Huawei smartwatches during a 1-wk high altitude exposure. In addition, SpO values recorded during the ascent to high altitude were predictive for the development of acute mountain sickness (AMS).
View Article and Find Full Text PDFCorrelation between hematological indicators in acclimatized high-altitude individuals and acute mountain sickness.
PeerJ
December 2024
Air Force Clinical College; The Fifth School of Clinical Medicine, Anhui Medical University, Hefei, China.
Background: The impact of acute mountain sickness (AMS) on individuals ascending to plateaus, soon after exposure to high altitudes, is well-documented. However, the specific relationship between AMS and alterations in blood parameters remains unclear.
Methods: A total of 40 healthy volunteers were recruited.
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