When a muscle is forced to do strenuous work, it ends up falling into a state of fatigue whose main symptoms are weakness, lack of response and the appearance of a trembling tingle. Studies carried out in athletes indicate that this muscle breakdown increases almost in direct proportion to the rate of decrease of glycogen in the muscle . Let us remember that glycogen is the fuel that is stored in muscle cells and that, by being enzymatically degraded in pyruvic and lactic acids, it provides energy. Its scarcity, together with a decrease in nerve transmission caused by prolonged muscular activity, favors the appearance of tremors.
Why do the muscles shake after a long effort?
Japanese scientists create a 'washing machine for humans'
Can you imagine taking a relaxing bath in a machine that washes you with bubbles, plays relaxing music or videos?
Insect swarms generate as much electricity as a thunderstorm
Swarms of bees can generate an electrical charge of 1,000 volts per meter, a higher voltage density than thunderclouds and electrified dust storms.
This is what the Earth's magnetic field sounds like
The shield that protects our planet sounds 'pretty scary', according to ESA engineers.
Days were only 17 hours long 2.46 billion years ago
It was when the Moon was much closer to our planet. As the centuries pass, the Moon slowly recedes and the length of our day gradually lengthens accordingly.
Women are better at doing crosswords
A new study has revealed that women have a 'small but robust' advantage over time.