Why the study?
Does physical training improve hemodynamic response during exercise in healthy 11-13-year-old boys?
Population
9 healthy boys, mean age 11.7 years (11.0–13.0)
Comparison
Physical training period of 4 months vs Baseline (pre-training)
Design
Cohort
Follow-up
4 months
Authors
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Supports stroke volume-mediated VO2 max gains with training in healthy boys; leaves open causality and broader applicability pending randomized data.
Does physical training improve hemodynamic response during exercise in healthy 11-13-year-old boys?
A 4-month physical training program in healthy pre-adolescent boys significantly increases maximal oxygen uptake primarily through an increase in stroke volume.
Eriksson et al. (1973) studied this question.
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