ArticleFrontiers in physiology2025
Work rate adjustments needed to maintain heart rate and RPE during high-intensity interval training in the heat.
Article in Frontiers in physiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Effects of Small-Sided Games and High-Intensity Interval Training on The Rating of Perceived Exertion in Soccer Players Across Competitive Levels: Controlling for Percentage of Heart Rate Reserve.Journal of sports science & medicine · 2025Trial
- Timing of Work-Rest Implementation Influences Worker Productivity Under Heat Stress: Evidence for Initial Stay Time-Based Scheduling.American journal of industrial medicine · 2026Article
- Optimizing exercise for brain health: cortical activation and connectivity across different exercise modalities.Brain structure & function · 2026Article
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Introduction: Higher work rates may be sustainable when maintaining target rating of perceived exertion (RPE) compared to maintaining target heart rate (THR) during high-intensity interval training (HIIT) exercise in hot conditions, but may also result in greater thermal strain and cardiovascular drift, as well as greater decrements in maximal oxygen uptake ( Purpose: To test the hypotheses that maintaining target RPE compared to THR during HIIT in the heat results in 1) smaller work rate adjustments, 2) greater thermal and cardiovascular strain, and 3) larger decreases in Methods: Eight adults (4 women) completed a graded exercise test on a cycle ergometer in 22°C and then 4 cycling trials in 35°C, consisting of an 8-min warm-up at 70% maximal heart rate (HR Results: In the 43-min trials work rate decreased from the first to the fifth work interval in both conditions, but by a non-significant, yet moderately larger (ES = 0.53) amount during 43 Conclusion: Maintaining target RPE and THR require considerable declines in work rate during HIIT in the heat, with ∼53% larger declines needed to maintain THR. The mitigation of cardiovascular drift in the THR trial may have contributed to the preservation of
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