Study note • PMID 30377642
Effect of two-weeks endurance training wearing additional clothing in a temperate outdoor environment on performance and physiology 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
This investigation assessed performance, physiological and perceptual responses to wearing additional clothing during endurance training for two-weeks in temperate environments, to determine if this approach could be used as… (controlled study; n=8 trained triathletes).
Effects on Performance in heat are mixed or unclear from the abstract alone. Treat this as a signal, not a guarantee; confirm methods and context in the full paper.
Takeaways
What the abstract suggests
- • Study question: This investigation assessed performance, physiological and perceptual responses to wearing additional clothing during endurance training for two-weeks in temperate environments, to determine if this approach could be used as…
- • Effects on Performance in heat are mixed or unclear from the abstract alone.
- • Population: n=8 trained triathletes.
- • Protocol cues (title/abstract): 20 min • 40 min.
Protocol
Protocol (as reported)
- • Intervention/exposure: heat acclimation (vs comparison group).
- • Dose/time/duration cues in abstract/title: 20 min • 40 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=8 trained 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=8 trained triathletes.
- • Comparator: comparison group.
- • Outcomes measured: Performance in heat.
- • Protocol cues mentioned: 20 min • 40 min.
- • Source: PubMed PMID 30377642 (2018) — Temperature (Austin, Tex.).
Results excerpt
What the abstract reports
“Mean thermal sensation was most likely hotter in AC (5.5 +/- 0.4 AU) compared to CON (4.4 +/- 0.4 AU; ES = 1.61, +/- 0.68) during the training sessions.”
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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