Abstract
We compared cardiac output (CO) determined simultaneously by electrical impedance cardiography method (COICG) and by the CO2 rebreathing technique (CO2REB) during three different steady-state exercises (target heart rate of 120, 140, and 160 min-1) in 8 healthy fit young men. The mean difference correlation coefficient obtained between the values of COICG and CO2REB was 0.85 and the mean difference (COICG-CO2REB) was 0.06 l/min (0.12%). At 120 min-1, COICG was lower than CO2REB but the tendency was reversed at 140 and 160 min-1 where COICG was higher than CO2REB. This evolution may be explained by the difficultly of using CO2 rebreathing technique at the highest steady-state exercises and by the progressive acidemia due to exercise. The present results suggest that electrical impedance cardiography method provides acceptable evaluation of CO and may favourably replace the CO2 rebreathing technique during mild (or moderate) to high steady-state exercises.
| Original language | English |
|---|---|
| Pages (from-to) | 145-149 |
| Number of pages | 5 |
| Journal | International Journal of Sports Medicine |
| Volume | 25 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1 Feb 2004 |
| Externally published | Yes |
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Keywords
- CO rebreathing technique
- Impedance cardiography
- Indirect Fick principle
- Steady state exercise
ASJC Scopus subject areas
- Orthopedics and Sports Medicine
- Physical Therapy, Sports Therapy and Rehabilitation
Cite this
Measurements of Cardiac Output during Constant Exercises : Comparison of Two Non-Invasive Techniques. / Tordi, N.; Mourot, L.; Matusheski, B.; Hughson, R. L.
In: International Journal of Sports Medicine, Vol. 25, No. 2, 01.02.2004, p. 145-149.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Measurements of Cardiac Output during Constant Exercises
T2 - Comparison of Two Non-Invasive Techniques
AU - Tordi, N.
AU - Mourot, L.
AU - Matusheski, B.
AU - Hughson, R. L.
PY - 2004/2/1
Y1 - 2004/2/1
N2 - We compared cardiac output (CO) determined simultaneously by electrical impedance cardiography method (COICG) and by the CO2 rebreathing technique (CO2REB) during three different steady-state exercises (target heart rate of 120, 140, and 160 min-1) in 8 healthy fit young men. The mean difference correlation coefficient obtained between the values of COICG and CO2REB was 0.85 and the mean difference (COICG-CO2REB) was 0.06 l/min (0.12%). At 120 min-1, COICG was lower than CO2REB but the tendency was reversed at 140 and 160 min-1 where COICG was higher than CO2REB. This evolution may be explained by the difficultly of using CO2 rebreathing technique at the highest steady-state exercises and by the progressive acidemia due to exercise. The present results suggest that electrical impedance cardiography method provides acceptable evaluation of CO and may favourably replace the CO2 rebreathing technique during mild (or moderate) to high steady-state exercises.
AB - We compared cardiac output (CO) determined simultaneously by electrical impedance cardiography method (COICG) and by the CO2 rebreathing technique (CO2REB) during three different steady-state exercises (target heart rate of 120, 140, and 160 min-1) in 8 healthy fit young men. The mean difference correlation coefficient obtained between the values of COICG and CO2REB was 0.85 and the mean difference (COICG-CO2REB) was 0.06 l/min (0.12%). At 120 min-1, COICG was lower than CO2REB but the tendency was reversed at 140 and 160 min-1 where COICG was higher than CO2REB. This evolution may be explained by the difficultly of using CO2 rebreathing technique at the highest steady-state exercises and by the progressive acidemia due to exercise. The present results suggest that electrical impedance cardiography method provides acceptable evaluation of CO and may favourably replace the CO2 rebreathing technique during mild (or moderate) to high steady-state exercises.
KW - CO rebreathing technique
KW - Impedance cardiography
KW - Indirect Fick principle
KW - Steady state exercise
UR - http://www.scopus.com/inward/record.url?scp=1542721844&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=1542721844&partnerID=8YFLogxK
U2 - 10.1055/s-2004-819949
DO - 10.1055/s-2004-819949
M3 - Article
VL - 25
SP - 145
EP - 149
JO - International Journal of Sports Medicine
JF - International Journal of Sports Medicine
SN - 0172-4622
IS - 2
ER -