A preliminary study into the effect of biofeedback on end tidal carbon dioxide levels during slow breathing in healthy volunteers
A preliminary study into the effect of biofeedback on end tidal carbon dioxide levels during slow breathing in healthy volunteers
Objectives:
To investigate the effect of visual biofeedback on end tidal carbon dioxide levels during slow breathing in healthy volunteers.
Design: Preliminary study with experimental design in which each participant experienced both conditions i.e. slow breathing with and without visual biofeedback
Setting:
Human Performance Laboratory, university campus
Participants:
Fifteen university students.
Baseline data and outcome measures:
Primary outcome measure was end tidal carbon dioxide (ETCO2); Secondary outcomes were respiratory rate; pulserate; non-invasive oxygen saturations; lung function
Results:
There was a mean rise in ETCO2 of 0.35 k Pa (CI0.09–0.6) during slow breathing with visual biofeedback, and 0.36 k Pa (CI0.13–0.6) without biofeedback. The use of visual feedback had no observable effect on ETCO2 despite participants successfully reducing their respiratory rate further under this condition
(mean 5 breaths per minute with feedback, versus 7 without feedback). ETCO2 and respiratory rate were negatively correlated under both conditions (Pearson’sr = 0.42).
Conclusions:
In this study of healthy volunteers manipulating respiratory rate was
found to result in a significant rise in ETCO2 levels under both conditions, but the use of visual biofeedback had no significant additional effect on ETCO2. Visual biofeedback did have a statistically significant effect on respiratory rate, enabling subjects to achieve lower rates than in the absence of biofeedback. This suggests
visual biofeedback may have a role in enabling people to reduce breathing rates, but this needs to be confirmed by larger trials.
Gahr, Kate
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Bishop, Ajay
620c43e5-e74d-4b10-9f2d-a628347e8d02
Bruton, Anne
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Gahr, Kate
bf63078d-f306-4b3f-9824-12c377de200e
Bishop, Ajay
620c43e5-e74d-4b10-9f2d-a628347e8d02
Bruton, Anne
9f8b6076-6558-4d99-b7c8-72b03796ed95
Gahr, Kate, Bishop, Ajay and Bruton, Anne
(2006)
A preliminary study into the effect of biofeedback on end tidal carbon dioxide levels during slow breathing in healthy volunteers.
European Respiratory Society Annual Congress, Munich, Germany.
02 - 06 Oct 2006.
(Submitted)
Record type:
Conference or Workshop Item
(Poster)
Abstract
Objectives:
To investigate the effect of visual biofeedback on end tidal carbon dioxide levels during slow breathing in healthy volunteers.
Design: Preliminary study with experimental design in which each participant experienced both conditions i.e. slow breathing with and without visual biofeedback
Setting:
Human Performance Laboratory, university campus
Participants:
Fifteen university students.
Baseline data and outcome measures:
Primary outcome measure was end tidal carbon dioxide (ETCO2); Secondary outcomes were respiratory rate; pulserate; non-invasive oxygen saturations; lung function
Results:
There was a mean rise in ETCO2 of 0.35 k Pa (CI0.09–0.6) during slow breathing with visual biofeedback, and 0.36 k Pa (CI0.13–0.6) without biofeedback. The use of visual feedback had no observable effect on ETCO2 despite participants successfully reducing their respiratory rate further under this condition
(mean 5 breaths per minute with feedback, versus 7 without feedback). ETCO2 and respiratory rate were negatively correlated under both conditions (Pearson’sr = 0.42).
Conclusions:
In this study of healthy volunteers manipulating respiratory rate was
found to result in a significant rise in ETCO2 levels under both conditions, but the use of visual biofeedback had no significant additional effect on ETCO2. Visual biofeedback did have a statistically significant effect on respiratory rate, enabling subjects to achieve lower rates than in the absence of biofeedback. This suggests
visual biofeedback may have a role in enabling people to reduce breathing rates, but this needs to be confirmed by larger trials.
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More information
Submitted date: 2006
Venue - Dates:
European Respiratory Society Annual Congress, Munich, Germany, 2006-10-02 - 2006-10-06
Identifiers
Local EPrints ID: 55108
URI: http://eprints.soton.ac.uk/id/eprint/55108
PURE UUID: e3a8cc8b-a694-4a77-b8d8-e6b781817fb9
Catalogue record
Date deposited: 05 Aug 2008
Last modified: 23 Jul 2022 01:39
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Contributors
Author:
Kate Gahr
Author:
Ajay Bishop
Author:
Anne Bruton
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