Cited by 167Cardiovascular and exercise physiologySports Performance and TrainingPhysical Activity and Health

Low- and high-volume of intensive endurance training significantly improves maximal oxygen uptake after 10-weeks of training in healthy men

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Tjønna, Arnt Erik, Leinan, Ingeborg Megaard, Bartnes, Anette Thoresen, Jenssen, Bjørn M., Gibala, Martin J., Winett, Richard A., Wisløff, Ulrik·2013·PLoS ONE

Abstract

UNLABELLED: Regular exercise training improves maximal oxygen uptake (VO2max), but the optimal intensity and volume necessary to obtain maximal benefit remains to be defined. A growing body of evidence suggests that exercise training with low-volume but high-intensity may be a time-efficient means to achieve health benefits. In the present study, we measured changes in VO2max and traditional cardiovascular risk factors after a 10 wk. training protocol that involved three weekly high-intensity interval sessions. One group followed a protocol which consisted of 4×4 min at 90% of maximal heart rate (HRmax) interspersed with 3 min active recovery at 70% HRmax (4-AIT), the other group performed a single bout protocol that consisted of 1×4 min at 90% HRmax (1-AIT). Twenty-six inactive but otherwise healthy overweight men (BMI: 25-30, age: 35-45 y) were randomized to either 1-AIT (n = 11) or 4-AIT (n = 13). After training, VO2max increased by 10% (∼5.0 mL⋅kg(-1)⋅min(-1)) and 13% (∼6.5 mL⋅kg(-1)⋅min(-1)) after 1-AIT and 4-AIT, respectively (group difference, p = 0.08). Oxygen cost during running at a sub-maximal workload was reduced by 14% and 13% after 1-AIT and 4-AIT, respectively. Systolic blood pressure decreased by 7.1 and 2.6 mmHg after 1-AIT and 4-AIT respectively, while diastolic pressure decreased by 7.7 and 6.1 mmHg (group difference, p = 0.84). Both groups had a similar ∼5% decrease in fasting glucose. Body fat, total cholesterol, LDL-cholesterol, and ox-LDL cholesterol only were significantly reduced after 4-AIT. Our data suggest that a single bout of AIT performed three times per week may be a time-efficient strategy to improve VO2max and reduce blood pressure and fasting glucose in previously inactive but otherwise healthy middle-aged individuals. The 1-AIT type of exercise training may be readily implemented as part of activities of daily living and could easily be translated into programs designed to improve public health. TRIAL REGISTRATION: ClinicalTrials.govNCT00839579.

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Authors
Tjønna, A. E., Leinan, I. M., Bartnes, A. T., Jenssen, B. M., Gibala, M. J., Winett, R. A., & Wisløff, U.
Affiliations
  • Norwegian University of Science and Technology (NO)
  • McMaster University (CA)
  • Virginia Tech (US)
Corresponding author
Tjønna, Arnt Erik
Venue
PLoS ONE
Published
2013-05-29
Volume
8
Issue
5
Pages
e65382
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2045717221
Cited by
167
References
44
Citations by year
2026: 3 · 2025: 5 · 2024: 10 · 2023: 12 · 2022: 17 · 2021: 18 · 2020: 9 · 2019: 12 · 2018: 14 · 2017: 12 · 2016: 19 · 2015: 16 · 2014: 16 · 2013: 4
FWCI
43.48
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • BIBSYS Brage (BIBSYS (Norway)) (acceptedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • Figshare (submittedVersion, cc-by)
  • NORA - Norwegian Open Research Archives (submittedVersion, cc-by)
  • VTechWorks (Virginia Tech) (submittedVersion, cc-by)
Funders
  • Norges Forskningsråd
  • St. Olavs Hospital Universitetssykehuset i Trondheim
Topics
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
  • Health Sciences › Medicine › Physiology › Physical Activity and Health
Keywords
high-intensity interval training, VO2max, training volume, cardiovascular risk factors, blood pressure, fasting blood glucose, oxidized LDL, fat mass, overweight men, time-efficient exercise
MeSH terms
Adipose Tissue, Adult, Blood Glucose, Blood Pressure, Cholesterol, Exercise Therapy, Fasting, Humans, Cholesterol, LDL, Male, Middle Aged, Oxygen Consumption, Running, Time Factors, Exercise, Treatment Outcome, Overweight

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