Study note • PMID 25811075
Hydration Status and Sodium Balance of Endurance Runners Consuming Postexercise Supplements of Varying Nutrient Content.
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: randomized trial.
- • 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
Postexercise protein and sodium supplementation may aid recovery and rehydration. (randomized trial; trained runners).
Effects on Time to exhaustion, Performance in heat, Cramp risk 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: Postexercise protein and sodium supplementation may aid recovery and rehydration.
- • Effects on Time to exhaustion, Performance in heat, Cramp risk are mixed or unclear from the abstract alone.
- • Population: trained runners.
- • Protocol cues (title/abstract): 1220 mg • 6 min • 5% HRR.
Protocol
Protocol (as reported)
- • Intervention/exposure: hydration, sodium.
- • Dose/time/duration cues in abstract/title: 1220 mg • 6 min • 5% HRR.
- • Outcomes: Time to exhaustion, Performance in heat, Cramp risk.
- • 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 hydration.
- • Athletes who can measure Time to exhaustion, Performance in heat, Cramp risk 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: randomized trial.
- • Population: trained runners.
- • Outcomes measured: Time to exhaustion, Performance in heat, Cramp risk.
- • Protocol cues mentioned: 1220 mg • 6 min • 5% HRR.
- • Source: PubMed PMID 25811075 (2015) — International journal of sport nutrition and exercise metabolism.
Results excerpt
What the abstract reports
“Hydration status was assessed via urinary biomarkers and body mass.”
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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