During and after each year of the Tour de France, there are often images of the legs of crows in their peak state. Their thighs and calves are covered with tangles that emerge like tree roots. The question of concern is, what is the physiological cause of this?
After the 16th leg of Tour de France 2017, Bora-Hansgrohe driver Pawe Poljaski posted incredible photos of his legs on social media. Immediately, commentators from all over the world gave their opinions on how special Poljaski's legs were.
They are not the only one to pay attention to the feet on the feet. What is seen in the photos taken by the Tour de France runners affects all of us to some extent. Increased blood flow and varicose veins as you exercise in warm weather.
There are a few reasons for this, let's find out.
Low body fat
Body fat is the main factor that makes your legs not bulge. Women typically have about 25% body fat, while men average 20-25%. For professional cranes, the rate is only 6%.
Their tendons can be clearly recognized when not covered by any layer of fat. However, there are many people whose skinny legs are not in such a state.
Blood vessel system
If you want your legs to be healthy, the vascular system is just as important as being thin. The vascular system of the top crabs is heavily active during their rigorous training. It pushes a lot of blood into the leg muscles, and then back into the heart and lungs.
To accommodate this, both the arteries and veins must expand in size and gradually get used to dilation, a process that occurs under pressure.
Blood physique
Even a well-functioning blood vessel system will not produce tendon swelling if there is not enough blood to fill it. 5 liters of blood, or about 50 to 75 ml per kg, or 5-7% of body mass, is an indicator in an untrained person. As for professional cycling athletes, they can have a maximum of 7-8 liters, or up to 150 ml per kg, or 15% of their body weight. In other words, the amount of blood flowing through the vessels that have swollen up is twice as much as that of normal people.
There is another effect in this aspect. Your blood pressure increases while exercising, which can push the tuong solution into the spaces around your muscles. Serum filtration is a process that leads to muscle tension and stiffness. As a result, the veins are pushed closer to the skin's surface.