Dr. Oliver Gibson
speaker
60 appearances
2 recordings
2 series
first heard Jun 2026
last heard 4 Jun
Dr. Oliver Gibson’s voice in public audio — every appearance, attributed to the second.
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recordings per month · last 12 monthsRecordings per month over the last 12 months — 2 in all, peaking in Jun 2026 with 2.
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focused our letter and the research on a metric called wet bulb globe temperature, which encapsulates all of the environmental conditions that the players will experience.
So it takes into account the air temperature of the environment that the players are playing in.
But it also acknowledges that heat stress goes beyond just temperature.
So there's a need to acknowledge the impact of humidity on the players, the impact of solar radiation.
So effectively feeling the sun on your skin and the heat stress that that imparts.
as well as the potentially helpful cooling effect that comes from airflow and the wind speed that affects players.
In that scenario, the body temperatures increase quite substantially, one, maybe two or even three degrees Celsius above its resting levels.
The body also has what we call a reflex response to increase body temperature.
So we'll see redistribution of cardiac output or the blood flow away from what the body deems to be non-essential organs in that moment.
So, for example, the gut, the gastrointestinal tract, the kidneys and the liver, that's not without complications in its own right.
So one of the pathways towards heat stroke emanates from the gut.
We see the gut become lower in blood flow and people develop this leaky gut syndrome.
And with a leaky gut in players, what we see is bacteria that should be residing in the gut move into the bloodstream and the body initiates then an inflammatory response to try and resolve those.
It doesn't have sufficient blood flow to send those bacteria to the liver for clearing in that organ.
And this inflammation contributes towards what ultimately can be fatal in heat stroke, which is multi-organ failure.
We know that football matches played in higher heat stress conditions can seem a little bit more passive.
They might be less engaging to the spectator.
Players produce less high-speed running.
They have the capacity still to sprint as fast, but they choose to sprint less frequently.
So we might see in hotter fixtures around 10% less high-distance running.
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