Effects of short‐term training and detraining onVO₂kinetics: FasterVO₂kinetics response after one training session
Key result
Short-term training decreased the time constant of oxygen uptake by ~14% (32.3 to 27.9 s, P < 0.05) after one session, with a further ~11% decrease after two sessions.
Why the study?
Does short-term training improve oxygen uptake kinetics in young men?
Population
12 men, mean age 24 ± 3 years
Comparison
Short-term training at 50% or 70% of V˙O2max vs Baseline and detraining periods
Design
Cohort
Authors
Discussion
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Implication
Short-term training may speed VO2 kinetics after one or two sessions in young men; hypothesis-generating and leaves open confirmation in randomized trials.
Study Design
Type
RCT (n=12)
Structured PICO
Does short-term training improve oxygen uptake kinetics in young men?
P
Population
12 men, mean age 24 ± 3 years
I
Intervention
Short-term training at 50% or 70% of V˙O2max
C
Comparator
Baseline and detraining periods
O
Outcome
Time course of changes in oxygen uptake (V˙O2) kineticssurrogate
Main Result
Effect estimate: 14% decrease
Absolute Event Rate: 27.9% vs 32.3%
p-value: p=< 0.05
Speeding of V˙O2 kinetics occurs remarkably quickly, after just one or two training sessions, with no further changes during continuous training or detraining.
Cite This Study
Murias et al. (2015) reported an RCT. Short-term training vs. Baseline was evaluated on Time constant of oxygen uptake (tVO2) (14% decrease, p=< 0.05). Short-term training decreased the time constant of oxygen uptake by ~14% (32.3 to 27.9 s, P < 0.05) after one session, with a further ~11% decrease after two sessions.