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Study note

Impairment of Cycling Capacity in the Heat in Well-Trained Endurance Athletes After High-Intensity Short-Term Heat Acclimation.

PMID 30702375 (2019): heat acclimation, heat stress — Performance in heat (study note for endurance athletes).

Updated Jul 22, 2026

Read the study note

Study note • PMID 30702375

Impairment of Cycling Capacity in the Heat in Well-Trained Endurance Athletes After High-Intensity Short-Term Heat Acclimation.

International journal of sports physiology and performance2019 • DOI 10.1123/ijspp.2018-0537

How to use this page

This note summarizes one study record. Check the participants, methods, results, and limitations before applying it to training.

  • Design signal: controlled study.
  • Population relevance: athlete/trained context.
  • Consistency: single-study evidence.
  • Practical recommendation depends on tolerance, context, and whether it protects training consistency.

ELI5

In plain language

To investigate the effects of short-term, high-intensity interval-training (HIIT) heat acclimation (HA). (controlled study; n=13 triathletes).

The abstract doesn’t indicate a clear change in Performance in heat under the tested conditions. Treat this as a signal, not a guarantee; confirm methods and context in the full paper.

Takeaways

What the abstract suggests

  • Study question: To investigate the effects of short-term, high-intensity interval-training (HIIT) heat acclimation (HA).
  • The abstract doesn’t indicate a clear change in Performance in heat under the tested conditions.
  • Population: n=13 triathletes.
  • Protocol cues (title/abstract): 6 min.

Protocol

Protocol (as reported)

  • Intervention/exposure: heat acclimation, heat stress (vs comparison group).
  • Dose/time/duration cues in abstract/title: 6 min.
  • Outcomes: Performance in heat.
  • Replication note: abstracts often omit adherence and timing; confirm details before changing training or supplementation.

Fit

Who it may help, and who should be cautious

Who it helps

  • Athletes similar to the study population (n=13 triathletes) working on heat.
  • Athletes who can measure Performance in heat with a repeatable workout or time-trial effort.

Who should be cautious

  • If you have symptoms or conditions that make the intervention risky, get professional guidance.
  • If you’re near race day and can’t safely test, defer the experiment.

Methods

What the study actually did

  • Design: controlled study.
  • Population: n=13 triathletes.
  • Comparator: comparison group.
  • Outcomes measured: Performance in heat.
  • Protocol cues mentioned: 6 min.
  • Source: PubMed PMID 30702375 (2019) — International journal of sports physiology and performance.

Results excerpt

What the abstract reports

Capacity in HST1 and HST2 was similar in COMP (43.5 [8.3] min vs 46.8 [15.7] min, P = .54).

Note: excerpts are short; for full context, read the paper.

Limits

Limitations and bias

  • Abstract-only summaries can miss critical details (population, protocol, adherence, and context).
  • Single studies often don’t generalize to your event, history, and training load; treat results as a starting point.
  • If your context differs (elite vs recreational; cycling vs running), adjust expectations and be conservative.
  • This is performance information, not medical advice.

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