Why the study?
How do stroke volume and cardiac output respond to heavy exercise and body position in well-trained athletes compared to non-athletes?
Population
8 well trained athletes (cyclists) with large dimensions of the circulatory system
Comparison
Exercise at 800 and 1,600 kpm/min while sitting… vs Data from non-athletes
Design
Cross-sectional
Authors
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SV-driven O2 transport in athletes varies by position; leaves open whether position-specific training optimizes capacity.
How do stroke volume and cardiac output respond to heavy exercise and body position in well-trained athletes compared to non-athletes?
In well-trained athletes, larger oxygen transport capacity compared to non-athletes is driven by a larger stroke volume, with significant variations based on body position.
Bevegård et al. (1963) studied this question.
Synapse has enriched one closely related paper. Consider it for comparative context: