Influence of Continuous and Interval Training on Oxygen Uptake On-Kinetics
- 1 March 2006
- journal article
- Published by Ovid Technologies (Wolters Kluwer Health) in Medicine & Science in Sports & Exercise
- Vol. 38 (3), 504-512
- https://doi.org/10.1249/01.mss.0000191418.37709.81
Abstract
Purpose: To examine the relative effectiveness of moderate-intensity continuous training and high-intensity interval training on pulmonary O2 uptake (V̇O2) kinetics at the onset of moderate- and severe-intensity cycle exercise in previously sedentary subjects. Methods: Twenty-three healthy subjects (11 males; mean ± SD age 24 ± 5 yr; V̇O2peak 34.3 ± 5.5 mL·kg−1·min−1) were assigned to one of three groups: a continuous training group that completed three to four sessions per week of 30-min duration at 60% V̇O2peak (LO); an interval training group that completed three to four sessions per week involving 20 × 1-min exercise bouts at 90% V̇O2peak separated by 1-min rest periods (HI); or a control group (CON). Before and after the 6-wk intervention period, all subjects completed a series of step exercise tests to moderate and severe work rates during which pulmonary V̇O2 was measured breath-by-breath. Results: ANOVA revealed that continuous and interval training were similarly effective in reducing the phase II V̇O2 time constant during moderate (LO: from 31 ± 8 to 23 ± 5 s; HI: from 32 ± 9 to 21 ± 4 s; both P < 0.05; CON: from 30 ± 6 to 29 ± 7 s; NSD) and severe exercise (LO: from 35 ± 6 to 24 ± 7 s; HI: from 32 ± 11 to 24 ± 7 s; both P < 0.05; CON: from 27 ± 7 to 25 ± 5 s; NSD) and in reducing the amplitude of the V̇O2 slow component (LO: from 0.38 ± 0.10 to 0.29 ± 0.09 L·min−1; HI: from 0.41 ± 0.28 to 0.30 ± 0.28 L·min−1; both P < 0.05; CON: from 0.54 ± 0.22 to 0.66 ± 0.38 L·min−1; NSD). Conclusions: Six weeks of low-intensity continuous training and high-intensity interval training were similarly effective in enhancing V̇O2 on-kinetics following step transitions to moderate and severe exercise in previously untrained subjects.Keywords
This publication has 24 references indexed in Scilit:
- Effect of work rate on the functional ‘gain’ of Phase II pulmonary O2 uptake response to exerciseRespiratory Physiology & Neurobiology, 2004
- Effects of Training Status and Exercise Intensity on Phase II &OV0312;O2 KineticsMedicine & Science in Sports & Exercise, 2004
- Endurance Training Reduces End-Exercise &OV0312;O2 and Muscle Use during Submaximal CyclingMedicine & Science in Sports & Exercise, 2003
- Dynamics of intramuscular31P-MRS Pipeak splitting and the slow components of PCr and O2uptake during exerciseJournal of Applied Physiology, 2002
- The Scientific Basis for High-Intensity Interval TrainingSports Medicine, 2002
- The Effect of Endurance Training on Parameters of Aerobic FitnessSports Medicine, 2000
- Effects of endurance training on transient oxygen uptake responses in cyclistsJournal of Sports Sciences, 1998
- Adherence to Exercise ProgrammesSports Medicine, 1994
- Metabolic and respiratory profile of the upper limit for prolonged exercise in manErgonomics, 1988
- Oxygen uptake kinetics in trained athletes differing in $$\dot V_{{\text{O}}_{{\text{2max}}} }$$European Journal of Applied Physiology, 1985