Ketones may improve time to exhaustion in the heat 🌡️
Another use for ketone monoesters?
Ketone monoester ingestion and cognitive and physical performance during exercise-heat stress
Study Details
This new study recruited 17 endurance-trained males to complete a crossover study where they supplemented with either…
1️⃣ Ketone monoester + 4 mg/kg caffeine
2️⃣ Carbohydrate + 4 mg/kg caffeine
Participants completed a 90-min treadmill workout (34 °C, 45% RH) followed by a high-intensity time-to-exhaustion (TTE) test 🥵
Caffeine was provided 45 mins prior to testing ☕️
Ketones or carbs were provided just before and at the midpoint of the heat stress treadmill workout and immediately after prior to the TTE test 🥤
Physical, cognitive and blood markers were assessed during the study 🔍
Key Findings
Compared to carbohydrate, ketones led to significantly improved...
🩸 Circulating BHB concentrations
🧠 Select aspects of working memory (incl. target accuracy)
🫁 Endurance capacity during the TTE
Heart rate and core body temperature increased over time in both conditions 📈
Conclusion
Combining ketone monster supplementation with caffeine may enhance performance (physical and cognitive) during sustained exercise in the heat ✅
Reference
https://pubmed.ncbi.nlm.nih.gov/42460838/
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