Although the raincoat is a garment of autumn and winter, surely you’ve seen in hot weather people running with a windbreaker or some plastic clothing. Many people think that running with a raincoat will make them lose weight quickly, but they do not realize that the only thing they will get will be dehydration. You will only lose fluid, which you will recover after a short time when drinking water, and you will not yield enough in your training.
Do sports with a rain jacket, yes or no?
We are before a garment that does not usually have a breathable fabric, its only function is to protect us from the rain thanks to its waterproof system. Being waterproof means that its composition is based on synthetic fabrics that are not very breathable, unlike natural fabrics such as cotton or linen. It is true that some sports brands have released versions of raincoats with greater capacity to perspire, but logically, that advantage is gained at the cost of losing impermeability.
You already know that the function of sweating is to regulate body temperature. We sweat to cool down and keep our body around 37 degrees; If we put an obstacle to perspiration, we will create a temperature increase and it will make us sweat more in order to try to regulate it.
In addition, the rubbing with a garment of little perspiration will create irritations in folds such as the armpits or groins. Also, the tissue can create some kind of reaction in the skin by not allowing it to breathe properly.
What happens when I lose fluid?
Dehydration is not nonsense. When we lose 1% of fluid, the heart rate begins to increase. When we carry a loss of 2%, our physical capacity decreases by 20%. If the loss already amounts to 3%, the blood volume is reduced, the response control and begins to increase the risk of suffering cramps, contractures or lipotimias. When we put on 4% of lost liquid, we will notice an intense exhaustion and with 5% , our thermoregulation mechanisms are altered facilitating the risk of suffering a heat stroke.
So, how do I play sports on rainy days?
Rain is water, nothing more. The most advisable thing is to leave the raincoat aside while you practice sports and put it on at the end if you need to cover yourself and do not carry umbrellas. We must also take into account the distance we are going to cover; In a 10-kilometer training or race, it will not be a problem to run in the rain. And you want it or not, you know you’ll end up getting wet even if you wear a waterproof.
Maybe it’s more important that you protect yourself from the rain before you start. If you are waiting for the start of a test, take a disposable raincoat with you that you can break when you start to warm up.
Of course, take clothes to change when you finish. Do not wait to get home because the humidity can play a trick on you. Change even your socks and slippers.