Cardiovascular Responses during Free-Diving in the Sea

Abstract Cardiac output has never been assessed during free-diving diving in the sea. Knowledge of human diving response in this setting is therefore scarce. 3 immersions were performed by 7 divers: at depths of 10 m, 20 m and 30 m. Each test consisted of 3 apnea phases: descent, static and ascent....

Full description

Saved in:
Bibliographic Details
Published in:International journal of sports medicine 2015-04, Vol.36 (4), p.297-301
Main Authors: Marongiu, E., Crisafulli, A., Ghiani, G., Olla, S., Roberto, S., Pinna, M., Pusceddu, M., Palazzolo, G., Sanna, I., Concu, A., Tocco, F.
Format: Article
Language:English
Subjects:
Adult
Blood Pressure
Cardiac Output
Cardiography, Impedance
Diving - physiology
Heart Rate
Hemodynamics
Humans
Lactic Acid - blood
Oxygen - blood
Physiology & Biochemistry
Stroke Volume
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Abstract Cardiac output has never been assessed during free-diving diving in the sea. Knowledge of human diving response in this setting is therefore scarce. 3 immersions were performed by 7 divers: at depths of 10 m, 20 m and 30 m. Each test consisted of 3 apnea phases: descent, static and ascent. An impedance cardiograph provided data on stroke volume, heart rate and cardiac output. Mean blood pressure, arterial O 2 saturation and blood lactate values were also collected. Starting from a resting value of 4.5±1.6 L∙min −1 , cardiac output at 10 m showed an increase up to 7.1±2.2 L∙min −1 (p
ISSN:0172-4622
1439-3964
DOI:10.1055/s-0034-1389969