Oxygen uptake kinetics in trained adolescent females
- Resource Type
- Authors
- Denise M. Roche; Simon Marwood; Max Garrard; Viswanath B. Unnithan; Kathryn Holloway
- Source
- Subject
- medicine.medical_specialty
Physiology
Chemistry
Large effect size
Lactate threshold
Public Health, Environmental and Occupational Health
General Medicine
Human physiology
Oxygen uptake
Surgery
Oxygen uptake kinetics
Rest period
Endocrinology
Physiology (medical)
Internal medicine
medicine
Orthopedics and Sports Medicine
Exercise physiology
Deoxygenation
- Language
- English
- ISSN
- 1439-6319
Little evidence exists with regard to the effect that exercise training has upon oxygen uptake kinetics in adolescent females. The aim of the study was to compare $$\dot{V}{\text{O}}_{2}$$ and muscle deoxygenation kinetics in a group of trained (Tr) and untrained (Utr) female adolescents. Twelve trained (6.4 ± 0.9 years training, 10.3 ± 1.4 months per year training, 5.2 ± 2.0 h per week) adolescent female soccer players (age 14.6 ± 0.7 years) were compared to a group (n = 8) of recreationally active adolescent girls (age 15.1 ± 0.6 years) of similar maturity status. Subjects underwent two, 6-min exercise transitions at a workload equivalent to 80 % of lactate threshold from a 3-min baseline of 10 W. All subjects had a passive rest period of 1 h between each square-wave transition. Breath-by-breath oxygen uptake and muscle deoxygenation were measured throughout and were modelled via a mono-exponential decay with a delay relative to the start of exercise. Peak $$\dot{V}{\text{O}}_{2}$$ was significantly (p