Study note • PMID 28486332
Short-Term Heat Acclimation and Precooling, Independently and Combined, Improve 5-km Time Trial Performance in the Heat.
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
James, CA, Richardson, AJ, Watt, PW, Willmott, AGB, Gibson, OR, and Maxwell, NS. (controlled study; trained runners).
The abstract doesn’t indicate a clear change in Performance in heat, Time-trial performance 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: James, CA, Richardson, AJ, Watt, PW, Willmott, AGB, Gibson, OR, and Maxwell, NS.
- • The abstract doesn’t indicate a clear change in Performance in heat, Time-trial performance under the tested conditions.
- • Population: trained runners.
- • Protocol cues (title/abstract): 5 days.
Protocol
Protocol (as reported)
- • Intervention/exposure: heat acclimation (vs comparison group).
- • Dose/time/duration cues in abstract/title: 5 days.
- • Outcomes: Performance in heat, Time-trial performance.
- • 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 (trained runners) working on heat.
- • Athletes who can measure Performance in heat, Time-trial performance 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: trained runners.
- • Comparator: comparison group.
- • Outcomes measured: Performance in heat, Time-trial performance.
- • Protocol cues mentioned: 5 days.
- • Source: PubMed PMID 28486332 (2018) — Journal of strength and conditioning research.
Results excerpt
What the abstract reports
“Statistical differences were only observed between HA and CON (p = 0.004, d = 0.68, 95% CI [-0.27 to 1.63]) however, similar effect sizes were observed for HA + PC vs.”
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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