European Journal of Applied Physiology

, Volume 114, Issue 9, pp 1963–1972

Low-volume, high-intensity, aerobic interval exercise for sedentary adults: \(\dot{V}\)O2max, cardiac mass, and heart rate recovery

  • Tomoaki Matsuo
  • Kousaku Saotome
  • Satoshi Seino
  • Miki Eto
  • Nobutake Shimojo
  • Akira Matsushita
  • Motoyuki Iemitsu
  • Hiroshi Ohshima
  • Kiyoji Tanaka
  • Chiaki Mukai
Original Article

DOI: 10.1007/s00421-014-2917-7

Cite this article as:
Matsuo, T., Saotome, K., Seino, S. et al. Eur J Appl Physiol (2014) 114: 1963. doi:10.1007/s00421-014-2917-7

Abstract

Purpose

The aim of this study was to compare the effects of low-volume, high-intensity aerobic interval training (HAIT) on maximal oxygen consumption (\(\dot{V}\)O2max), left ventricular (LV) mass, and heart rate recovery (HRR) with high-volume, moderate-intensity continuous aerobic training (CAT) in sedentary adults.

Methods

Twenty-four healthy but sedentary male adults (aged 29.2 ± 7.2 years) participated in an 8-week, 3-day a week, supervised exercise intervention. They were randomly assigned to either HAIT (18 min, 180 kcal per exercise session) or CAT (45 min, 360 kcal). \(\dot{V}\)O2max, LV mass (3T-MRI), and HRR at 1 min (HRR-1) and 2 min (HRR-2) after maximal exercise were measured pre- and post-intervention.

Results

Changes in \(\dot{V}\)O2max during the 8-week intervention were significant (P < 0.01) in both groups (HAIT, 8.7 ± 3.2 ml kg−1 min−1, 22.4 ± 8.9 %; CAT, 5.5 ± 2.8 ml kg−1 min−1, 14.7 ± 9.5 %), while the \(\dot{V}\)O2max improvement in HAIT was greater (P = 0.02) than in CAT. LV mass in HAIT increased (5.1 ± 8.4 g, 5.7 ± 9.1 %, P = 0.05), but not in CAT (0.9 ± 7.8 g, 1.1 ± 8.4 %, P = 0.71). While changes in HRR-1 were not significant in either group, change in HRR-2 for HAIT (9.5 ± 6.4 bpm, 19.0 ± 16.0 %, P < 0.01) was greater (P = 0.03) than for CAT (1.6 ± 10.9 bpm, 3.9 ± 16.2 %, P = 0.42).

Conclusions

This study suggests that HAIT has potential as a time-efficient training mode to improve cardiorespiratory capacity and autonomic nervous system function in sedentary adults.

Keywords

Exercise prescription Exercise training Maximal oxygen consumption Time efficiency 

Abbreviations

ANCOVA

Analysis of covariance

BMI

Body mass index

CAT

Continuous aerobic training

DBP

Diastolic blood pressure

DXA

Dual-energy X-ray absorptiometry

ES

Effect size

HAIT

High-intensity aerobic interval training

HR

Heart rate

HRR

Heart rate recovery

LV

Left ventricular

PPO

Peak power output

SBP

Systolic blood pressure

SV

Stroke volume

\(\dot{V}\)CO2

Carbon dioxide production

\(\dot{V}\)O2

Oxygen consumption

WL

Work load

Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Tomoaki Matsuo
    • 1
    • 5
  • Kousaku Saotome
    • 2
  • Satoshi Seino
    • 3
  • Miki Eto
    • 3
  • Nobutake Shimojo
    • 3
  • Akira Matsushita
    • 2
  • Motoyuki Iemitsu
    • 4
  • Hiroshi Ohshima
    • 5
  • Kiyoji Tanaka
    • 3
  • Chiaki Mukai
    • 5
  1. 1.Hazard Evaluation and Epidemiology Research GroupNational Institute of Occupational Safety and Health, JapanKawasakiJapan
  2. 2.Center for Cybernics ResearchUniversity of TsukubaTsukubaJapan
  3. 3.Graduate School of Comprehensive Human SciencesUniversity of TsukubaTsukubaJapan
  4. 4.Faculty of Sport and Health ScienceRitsumeikan UniversityKusatsuJapan
  5. 5.Space Biomedical Research OfficeJapan Aerospace Exploration Agency (JAXA)TsukubaJapan

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