Effect of Normobaric Oxygen Inhalation Intervention on Microcirculatory Blood Flow and Fatigue Elimination of College Students After Exercise

Peng, Yong; Meng, Liang; Zhu, Huan; Li, Wan; Chen, Fen

doi:10.3389/fgene.2022.901862

Cited by 2 publications

(2 citation statements)

References 15 publications

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“…The population of our study, like that of Camacho-Cardenosa [ 23 ], was composed of women and men, unlike most studies on normobaric hypoxia that have been conducted only with men [ 24 , 25 ]. We observed that, overall, the behavior of HR and SpO 2 was similar in both genders with no significant differences between them in the final initial values.…”

Section: Discussionmentioning

confidence: 99%

Analysis of Muscle Oxygenation after a Normobaric Hypoxia Tolerance Test

Albertus-Cámara,

Paredes-Ruiz,

Martínez-González-Moro

2024

JFMK

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The aim of this work was to analyze the influence of acute normobaric hypoxia on quadricep oxygenation. Muscle oxygen saturation (SmO2) was measured using near-infrared spectrometry (NIRS) technology during a normobaric hypoxia tolerance test (NHTT). SmO2 was measured with a Humon Hex® device. In total, 54 healthy subjects participated, 68.5 of which were males and 31.5% of which were females. They performed an NHTT with the IAltitude® simulator, breathing air with an FiO2 level of 11% (equivalent to 5050 m). The maximum duration of the NHTT was set at 10 min, stopping if it reached 83% SpO2. The initial values (PRE) were compared with those obtained at the end of the test (POST) and after 10 min of recovery. The participants were divided into two groups based on whether (G1) they completed the ten minutes or not (G2). In total, 35.1% of men and 41.2% of women completed the 10 min. In both groups, significant differences were observed in the decrease in SmO2 values (p < 0.0001) (G1: PRE = 59.5 ± 12.48%; POST = 55.95 ± 14.30%; G2: PRE = 60.06 ± 13.46%; POST = 57.2 ± 12.3%). There were no differences between groups in any of the three periods. Exposure to normobaric hypoxia produces a decrease in quadricep levels of SmO2 in both sexes, regardless of whether the test is completed. Two patterns appeared: A.—less time and more hypoxia; B. a longer duration and less hypoxia.

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Section: Discussionmentioning

confidence: 99%

Analysis of Muscle Oxygenation after a Normobaric Hypoxia Tolerance Test

Albertus-Cámara,

Paredes-Ruiz,

Martínez-González-Moro

2024

JFMK

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“…First, it is important to note that the hydrogen generator utilized in this study also produces oxygen. Although the concentration of oxygen inhaled into the human body is extremely minute and does not independently impact fatigue performance (The minimum concentration of oxygen required to affect fatigue and oxidative capacity is 70-96% [44,45]), there remains the possibility of a synergistic effect in combination with hydrogen.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Inhalation of Hydrogen-rich Gas before Acute Exercise Alleviates Exercise Fatigue: A Randomized Crossover Study

Dong,

Wu,

Hong

et al. 2024

Int J Sports Med

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Hydrogen, as an antioxidant, may have the potential to mitigate fatigue and improve selected oxidative stress markers induced by strenuous exercise. This study focused on previously unexplored approach of pre-exercise inhalation of hydrogen-rich gas (HRG). Twenty-four healthy adult men first completed prelaboratories to determine maximum cycling power (Wmax) and maximum cycling time (Tmax). Then they were subjected to ride Tmax at 80% Wmax on cycle ergometers after inhaled HRG or placebo gas (air) for 60-minute in a double-blind, counterbalanced, randomized, and crossover design. The cycling frequency in the fatigue modelling process and the rating of perceived exertion (RPE) at the beginning and end of the ride were recorded. Before gas inhalation and after fatigue modeling, visual analog scale (VAS) for fatigue and counter-movement jump (CMJ) were tested, and blood samples were obtained. The results showed that compared to placebo, HRG inhalation induced significant improvement in VAS, RPE, the cycling frequency in the last 30 seconds, the ability to inhibit hydroxyl radicals, and serum lactate after exercise (p < 0.028), but not in CMJ height and glutathione peroxidase activit. In conclusions, HRG inhalation prior to acute exercise can alleviate exercise-induced fatigue, maintain functional performance, and improve hydroxyl radical and lactate levels.

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Effect of Normobaric Oxygen Inhalation Intervention on Microcirculatory Blood Flow and Fatigue Elimination of College Students After Exercise

Cited by 2 publications

References 15 publications

Analysis of Muscle Oxygenation after a Normobaric Hypoxia Tolerance Test

Analysis of Muscle Oxygenation after a Normobaric Hypoxia Tolerance Test

Inhalation of Hydrogen-rich Gas before Acute Exercise Alleviates Exercise Fatigue: A Randomized Crossover Study

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