Variability of ventilation during exercise is greater in adolescents than in adults
Abstract
Abstract Adolescence involves rapid physiological changes that may affect ventilatory control. This study used Poincaré and approximate entropy (ApEn) analyses to assess ventilatory variability and randomness during steady‐state exercise in adolescents and adults. Twelve adolescents (10–14 years) and 10 adults (25–35 years) completed 20 min of submaximal cycling at 1.0 W·kg −1 . The final 15 min were analyzed using Poincaré and ApEn. Continuous variables were expressed as median (interquartile range) and compared by the Mann–Whitney U ‐test ( α = 0.05). Adolescents showed greater breathing frequency (BF) standard deviation (SD) 1 4.7 (3.7–5.4) vs. 2.6 (2.5–3.3) 1·min −1 ( p < 0.01), BF SD2 4.9 (4.2–6.8) vs. 3.6 (3.5–4.3) 1 min −1 ( p =
Fields of Study & Subjects
Cardiovascular and exercise physiology
Heart Rate Variability and Autonomic Control
Sports Performance and Training
Publication details
- Journal / source
- Physiological Reports
- Publisher
- Wiley
- Volume
- 14
- Issue
- 7
- Pages
- e70846–e70846
- Publication date
- 27 March 2026
- Language
- EN