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| Titel: |
Maximal oxygen uptake and lactate thresholds during exercise are related to blood viscosity and erythrocyte aggregation in professional football players |
| Auteur: |
Brun, J.F. Micallef, J.P. Supparo, I. Rama, D. Benezis, C. Orsetti, A. |
| Verschenen in: |
Clinical hemorheology and microcirculation |
| Paginering: | Jaargang 15 (2012) nr. 2 pagina's 201-212 |
| Jaar: |
2012-10-11 |
| Inhoud: |
Correlations among values at rest of blood viscosity (MT 90, high shear rate), RBC Aggregation (Myrenne) and four markers of fitness were investigated in 21 professional football players during a triangular maximal exercise test. Maximal O2 uptake ($\dot{\mathrm{V}}$O2 max, directly measured) was correlated with resting plasma viscosity (r=−0.666 p<0.01) and blood viscosity at corrected hematocrit 45% (r=−0.426 p<0.05). The physical working capacity $\dot{\mathrm{W}}$170 was correlated with $\dot{\mathrm{V}}$O2max (r=0.645 p<0.01) and with both resting plasma viscosity (r=−0.524 p<0.02) and hematocrit (r=−0.524 p<0.05). Two determinants of the 4 mmol lactate threshold were found: red cell aggregation ‘M’ (r=−0.529 p<0.02) and ‘M1’ (r=0.477 p<0.05). Thus, markers of aerobic working capacity are negatively correlated with plasma viscosity and hematocrit, while the 4 mmol.l−1 lactate threshold which measures the ability to avoid blood lactate increase is negatively correlated to RBC aggregation. |
| Uitgever: |
IOS Press |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 10 van 17 gevonden artikelen
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