"There are even stories of riders who were never the same afterwards" - Doctor warns of long-lasting effects of hypothermic La Fleche Wallonne

Whilst in Austria and Italy, riders at the Tour of the Alps were dealing with the coldest race day of 2024, those competing at La Fleche Wallonne in Belgium were arguably having even tougher conditions to deal with.

With the race battered by sleet, hail, rain and a piercingly cold wind, a number of riders began to seriously feel the affects of the weather, not more notably than Mattias Skjelmose who was filmed shaking uncontrollably as he was literally carried of the race. Afterwards Lidl-Trek updated, saying “We can confirm that our riders who had symptoms of hypothermia due to the bad weather conditions are feeling better again thanks to a hot shower, hot drink and warm air in the team bus. No major treatments are necessary and everything is under control," but according to Dr Kris Van der Mieren, long-lasting effects of such an experience are something to be mindful of.

"The feeling in your muscles decreases," van der Mieren tells Sporza. "Just like the sharpness of your consciousness. This makes you less able to respond accurately. Fortunately, there is always good support in cycling. In extreme circumstances, this causes people to go into a coma. If the body temperature drops below 34 degrees, it can even lead to death."

"In the descents the speed increases, there is splashing water and riders get soaked. Then the body cools down quickly. Alternate this with intensive climbs and short moments of heat. Once the body temperature drops below 35 degrees after a bit of a struggle, the problems begin. The light can go out quite quickly," he continues. "It's like the straw that breaks the camel's back. Then you have to stop, but riders always want to keep going. For them it is simply a form of suffering. But that is precisely the danger: the extreme exhaustion makes you less able to respond accurately."

Van der Mieren also details just what happens to a riders body in such extreme circumstances. "First of all, the body will try to protect itself with basic reactions such as goosebumps and shivering. This is to maintain the temperature. And then the metabolism starts to slow down. The engine literally stops and energy is saved as much as possible, because the body goes into survival mode due to the extreme stress situation," he explains. "In other words, everything that does not serve to protect the vital organs is a waste of energy. Because well, your body doesn't know that you are riding a race."

"That cold can sometimes stay in your body for hours. It is an attack on your organs that need to recover. So heating up quickly is one thing, generating energy is another. In fact, you only know what it really is like weeks after the effort," the doctor concludes. "There are even stories of riders who were never the same afterwards. In 98% of cases everything will be fine after a few weeks. Although you don't know that right away and there is never complete certainty. It's not always innocent."