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Hyperpnea and Hyperventilation01:25

Hyperpnea and Hyperventilation

Hyperventilation refers to a higher-than-normal rate and depth of breathing, often associated with anxiety attacks. This excessive breathing surpasses the body's need to expel CO2, leading to a condition known as hypocapnia - an unusually low level of carbon dioxide in the blood. Hypocapnia can constrict cerebral blood vessels, reducing blood flow to the brain, which may result in dizziness or fainting. Early signs include tingling and muscle spasms in the hands and face, caused by falling...
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Blood Pressure Imbalances and Circulatory Shock01:24

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Tilt Testing with Combined Lower Body Negative Pressure: a "Gold Standard" for Measuring Orthostatic Tolerance
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Exercise-associated collapse: postural hypotension, or something deadlier?

Dale B Speedy1, Timothy D Noakes, Lucy-May Holtzhausen

  • 1Department of General Practice and Primary Care, University of Auckland, Auckland, NZ. dalespeedy@e3.net.nz.

The Physician and Sportsmedicine
|January 21, 2010
PubMed
Summary
This summary is machine-generated.

Exercise-associated collapse (EAC) is a common issue for endurance athletes, often occurring post-race. Prompt treatment involves leg elevation to manage postural hypotension.

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14:52

Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication

Published on: December 11, 2013

Area of Science:

  • Sports Medicine
  • Physiology

Background:

  • Exercise-associated collapse (EAC) is the most frequent cause of medical tent visits after endurance events.
  • EAC pathophysiology involves combined postural hypotension from decreased muscle pump action and cutaneous vasodilation post-exercise.

Purpose of the Study:

  • To describe the commonality, pathophysiology, and treatment of exercise-associated collapse in athletes.

Main Methods:

  • Observational analysis of athlete presentations in medical tents.
  • Clinical assessment of collapsed athletes to determine working diagnoses.

Main Results:

  • EAC is the primary reason for medical attention in endurance event finishers.
  • Collapse during a race suggests a more serious underlying medical condition.
  • Post-exercise hypotension and vasodilation are key to EAC.

Conclusions:

  • EAC is a distinct clinical entity typically occurring after race completion.
  • Initial management for EAC focuses on recumbency and leg elevation.