Key result
Elite rank links to superior cardiovascular and quadriceps oxygen extraction during simulated hiking bouts.
Why the study?
The extent to which central hemodynamic and local muscle oxygen transport and extraction capacities differ between highly-ranked and less well-ranked sailors was unclear.
Do highly-ranked sailors have superior central hemodynamic and local muscle capacities for oxygen transport and extraction compared to club sailors during simulated hiking bouts?
Cross-Sectional (n=12)
Do highly-ranked sailors have superior central hemodynamic and local muscle capacities for oxygen transport and extraction compared to club sailors during simulated hiking bouts?
Highly-ranked sailors demonstrate superior central and peripheral muscle capacities for oxygen transport and utilization, which may explain their advanced hiking ability.
Answers are grounded in this paper and cite their sources.
May inform oxygen-utilization training targets in competitive sailors; leaves open causal performance links and broader applicability.
Quadriceps Muscle Oxygen Availability between Highly- Ranked and Club Sailors during Successive Simulated Hiking Bouts Reports indicate that top-class compared to less welltrained sailors demonstrate greater hiking abilities by sustaining greater fractions of their maximum quadriceps muscle strength. The aim of this study is to investigate the extent to which central hemodynamic and local muscle capacities for oxygen transport and extraction are superior in highly-ranked compared to less well-ranked sailors. Six highly-ranked and six club sailors performed 3 successive 2-min hiking bouts followed by a 4th bout to exhaustion. Vastus lateralis muscle deoxygenated hemoglobin concentration (an index of local muscle oxygen extraction) was measured by Near- Infrared Spectroscopy, whereas cardiac output was determined using impedance cardiography. Six highly-ranked and six club sailors performed 3 successive 2-min hiking bouts followed by a 4th bout to exhaustion. Vastus lateralis muscle deoxygenated hemoglobin concentration (an index of local muscle oxygen extraction) was measured by Near- Infrared Spectroscopy, whereas cardiac output was determined using impedance cardiography. Highly-ranked sailors exhibit superior cardiovascular and quadriceps muscle oxygen utilization capacities. Such superior central and peripheral muscle capacities for oxygen transport and utilization may explain why highly-ranked sailors demonstrate advanced hiking ability.
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Vasileios Andrianopoulos (2014) reported a cross-sectional. Highly-ranked sailing status vs. Club sailors was evaluated on Vastus lateralis muscle deoxygenated hemoglobin concentration and cardiac output. Highly-ranked sailors exhibited superior cardiovascular and quadriceps muscle oxygen utilization capacities compared to club sailors during successive simulated hiking bouts.
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