Research Topic
Heat
5 articles
The Temperature at Which Athletic Performance Stops Declining and Starts Becoming Dangerous
Air temperature alone tells you very little about heat stress during exercise. The metric sports medicine uses is WBGT — and most athletes have never heard of it.
5 min read · 2026-10-06
Glycerol Hyperhydration: The Pre-Race Fluid Trick Most Athletes Have Never Heard Of
Glycerol hyperhydration can expand plasma volume by 400–700 mL before heat racing. Here's the science behind this underused protocol and how to apply it safely.
5 min read · 2026-09-01
Athletes Who Train in Heat Gain a Physiological Advantage That Persists in Cool Conditions. Here's the Mechanism.
Two weeks of exercise-heat exposure expands plasma volume by 10–12%, lowers core temperature onset threshold for sweating, and reduces heart rate at equivalent workloads. These adaptations improve performance in both hot and temperate conditions.
5 min read · 2026-09-01
When Core Temperature Crosses 39°C, the Most Important Organ Failing Is Not Your Muscles. It Is Your Gut — and Once the Intestinal Barrier Breaks Down, the Consequences Go Far Beyond GI Cramps.
Exercise heat stress disrupts intestinal tight junctions, triggering LPS endotoxaemia that drives systemic inflammation and exertional heat stroke risk. Learn the I-FABP marker, splanchnic vasoconstriction mechanism, and evidence-based gut protection strategies.
5 min read · 2026-09-01
Your 3:30 Marathon Pace Was Built in October. It's June Now. Here's What Changes.
Race performance degrades predictably with temperature. A 3:30 marathoner can expect to lose 10–20 minutes in warm conditions. Here's the physiological mechanism.
5 min read · 2026-09-01