Heart rate response to apnea in air and water during rest and steady-state exercise was studied in 20 male college students Significant bradycardia (p < 0.05) due to apnea was observed at rest and during exercise A significant increase in bradycardia (P < 0 01 ) due to apneic face immersion in water was observed at rest and during exercise. No significant relationships were found between resting and exercise bradycardias The absolute values of the two reflexes at rest and during exercise were compared showing no significant difference (P > 0.10) A significant relationship (P < 005) was found between PWC120 and the exercise apneic bradycardia. © 1974, SAGE Publications. All rights reserved.
The American Journal of Sports Medicine
Burke, Edmund J. and Lynch, Peter R., "Underwater bradycardia" (1974). Faculty Articles Indexed in Scopus. 2741.