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The effect of prior exercise intensity on oxygen uptake kinetics during high-intensity running exercise in trained subjects
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The effect of prior exercise intensity on oxygen uptake kinetics during high-intensity running exercise in trained subjects
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Journal Article
The effect of prior exercise intensity on oxygen uptake kinetics during high-intensity running exercise in trained subjects
2015
Overview
Purpose
The aim of this study was to compare the effects of two different kinds of prior exercise protocols [continuous exercise (CE) versus intermittent repeated sprint (IRS)] on oxygen uptake (
V
O
2
) kinetics parameters during high-intensity running.
Methods
Thirteen male amateur futsal players (age 22.8 ± 6.1 years; mass 76.0 ± 10.2 kg; height 178.7 ± 6.6 cm;
V
O
2max
58.1 ± 4.5 mL kg
−1
min
−1
) performed a maximal incremental running test for the determination of the gas exchange threshold (GET) and maximal
V
O
2
(
V
O
2max
). On two different days, the subjects completed a 6-min bout of high-intensity running (50 % ∆) on a treadmill that was 6-min after (1) an identical bout of high-intensity exercise (from control to CE), and (2) a protocol of IRS (6 × 40 m).
Result
We found significant differences between CE and IRS for the blood lactate concentration ([La]; 6.1 versus 10.7 mmol L
−1
, respectively),
V
O
2
baseline (0.74 versus 0.93 L min
−1
, respectively) and the heart rate (HR; 102 versus 124 bpm, respectively) before the onset of high-intensity exercise. However, both prior CE and prior IRS significantly increased the absolute primary
V
O
2
amplitude (3.77 and 3.79 L min
−1
, respectively, versus control 3.54 L min
−1
), reduced the amplitude of the
V
O
2
slow component (0.26 and 0.21 L min
−1
, respectively, versus control 0.50 L min
−1
), and decreased the mean response time (MRT; 28.9 and 28.0 s, respectively, versus control 36.9 s) during subsequent bouts.
Conclusion
This study showed that different protocols and intensities of prior exercise trigger similar effects on
V
O
2
kinetics during high-intensity running.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V
Subject
