Effectiveness of High-Intensity Interval Training (HIT) and Continuous Endurance Training for VO2max Improvements: A Systematic Review and Meta-Analysis of Controlled Trials

Milanović Z, Sporiš G, Weston M (2016) Sports Medicine
Title and abstract of Effectiveness of High-Intensity Interval Training (HIT) and Continuous Endurance Training for VO2max Improvements: A Systematic Review and Meta-Analysis of Controlled Trials

Key Takeaway

Comprehensive meta-analysis of 28 studies confirming HIIT produces significantly greater VO2max improvements than continuous endurance training.

Summary

This meta-analysis analyzed 28 controlled trials with 723 participants comparing high-intensity interval training to continuous endurance training for VO2max improvement.

Key findings:

  • HIIT produced significantly greater VO2max improvements than continuous training
  • Mean difference: 3.03 mL/kg/min favoring HIIT
  • Effect was consistent across different populations
  • Running-based HIIT showed larger effects than cycling

Protocol insights:

  • Interval lengths of 3-5 minutes showed greatest effects
  • Work:rest ratios around 1:1 to 2:1 were effective
  • 8+ weeks of training needed for maximal adaptation

Related Interventions

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Source

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DOI: 10.1007/s40279-015-0365-0