Population
39 healthy, non-athletically-trained sixth-grade boys, mean age 12.2 years
Design
Cross-sectional
Authors
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Stroke volume may underlie VO2max variation in healthy boys; hypothesis-generating, should not yet change practice.
In healthy 12-year-old boys, factors influencing resting stroke volume are primarily responsible for inter-individual differences in maximal oxygen uptake.
Rowland et al. (1999) studied this question.
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