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Related Concept Videos

Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure01:16

Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure

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Oxygen therapy has emerged as a significant tool in enhancing the quality of life for patients suffering from pulmonary arterial hypertension (PAH). While this therapy has principally been studied on patients with significant hypoxemia, this therapeutic approach helps prevent potential organ damage and can be administered in the comfort of one's home.
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Oxygen therapy is a pivotal aspect of medical care, particularly for patients with respiratory ailments. Two prominent oxygen-delivering systems include the Venturi mask and the transtracheal oxygen catheter.
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Regular physical activity is essential for maintaining cardiovascular health, with aerobic exercises being particularly effective. According to the American Heart Association, 150 minutes of moderate to intense aerobic exercise per week is recommended for a healthy heart. Aerobic activities may include brisk walking, running, bicycling, cross-country skiing, and swimming, ideally performed three to five times per week.
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Muscle fatigue refers to the decline in a muscle's ability to maintain the force of contraction after prolonged activity. It primarily stems from changes within muscle fibers. Even before experiencing muscle fatigue, one may feel tired and have the urge to stop the activity. This response, known as central fatigue, occurs due to changes in the central nervous system, namely the brain and spinal cord. While there is no single mechanism that induces fatigue, it may serve as a protective...
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Assessing respiratory rate concurrently with pulse measurement is fundamental to patient care, providing valuable insights into the patient's respiratory function. The normal breathing rate for an adult usually falls within a normal range of 12 to 20 breaths per minute. Abnormal respiratory rates can signal underlying health conditions or the need for immediate intervention.
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The human body requires oxygen to function, and when the natural process of respiration is hindered, external devices, including the following, are needed to help deliver this vital gas.
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Related Experiment Video

Updated: Mar 29, 2026

A Rapidly Incremented Tethered-Swimming Maximal Protocol for Cardiorespiratory Assessment of Swimmers
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Recovery-Targeted Supplemental Oxygen Enhances Performance and Attenuates Perceived Fatigue During Subsequent

Joshua A Kidwell1,2, Trent Yamamoto1,3, Aidan Flanagan2

  • 1Airway and UC Fit Digital Health-Exercise Physiology Laboratory, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA.

Sports (Basel, Switzerland)
|March 27, 2026
PubMed
Summary

Supplemental oxygen during recovery improved swimming performance and reduced perceived exertion in trained aquatic athletes. This strategy may enhance repeated high-intensity efforts by aiding recovery efficiency.

Keywords:
aquatic athleteshyperoxiaperceived exertionrecoveryrepeated exercisesupplemental oxygenswimming performance

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Area of Science:

  • Sports Medicine
  • Exercise Physiology
  • Aquatic Performance

Background:

  • High-intensity aquatic sports demand efficient recovery between maximal efforts under constrained breathing.
  • Supplemental oxygen is a potential recovery aid, but its acute effects in swimmers are not well understood.

Purpose of the Study:

  • To investigate the impact of supplemental oxygen during recovery on subsequent swimming performance.
  • To assess the effect of supplemental oxygen on perceived exertion in aquatic athletes after maximal effort.

Main Methods:

  • A randomized, placebo-controlled, crossover study involving 18 male aquatic athletes.
  • Participants completed a maximal 100-yard swim followed by a 5-second inhalation of 98% oxygen or placebo.
  • A maximal 50-yard freestyle sprint followed the recovery period in each condition.

Main Results:

  • Sprint performance was significantly faster after supplemental oxygen recovery compared to placebo.
  • Perceived exertion was significantly lower post-exercise with supplemental oxygen.
  • No significant differences in performance or exertion were noted before exercise or mid-protocol.

Conclusions:

  • Brief, recovery-focused hyperoxia can enhance repeated high-intensity swimming performance.
  • Supplemental oxygen may attenuate post-exercise perceived exertion in trained aquatic athletes.
  • This strategy shows promise for improving recovery in aquatic sports.