Background. Inspiratory and expiratory spirometric adaptations under the Ventilatory Strategy Training (VST) protocol were previously documented across 48 weeks in a cohort of ten professional cyclists (Ricci expiratory: +12.2% to +12.4%). Year-2 increments were positive on all five parameters (+1.5% to +3.8%). The FEV₁/FEV₆ ratio remained stable within the ≥0.83 optimal band across the full 24-month window. Conclusion. Static inspiratory and expiratory spirometric signatures continue to progress across the second year of VST exposure. This descriptive extension characterizes the trajectory of the mobilizable ventilatory substrate; the dynamic transposition of these adaptations into operational cycling performance is addressed in separate reports of the corpus.
Cyril Ricci (Sun,) studied this question.