It is not that "it is too late to start exercise," clearly that younger muscles can be kept over tens of years old

ByKamyar Adl

Human beings are weakening their physical functions and muscles with aging, but research by first-class athletes in their 80s has shown that muscle cell conditions It became clear that there will be a difference of several decades or more.

Exercise Makes Our Muscles Work Better With Age - The New York Times
http://well.blogs.nytimes.com/2016/03/30/exercise-makes-our-muscles-work-better-with-age/


Young people generally have more muscle than elderly people, but it will be lost as older age. The muscle is composed of muscle fibers which are fibrous muscle cells, and each muscleMotor neuronThere is a link with it. A set of motor neurons and muscle fibersExercise unitIt is called.

When the motion unit is in perfect condition, the motor neuron sends a command to the muscle fibers to contract. Muscle fibers react to make it possible to move parts such as feet, eyelids and fingers. However, when it comes to thirties, motor neurons begin to die, muscle fibers become isolated, and muscle fibers that have lost motor neurons will be disconnected from the nervous system.

If it is less than 20 years, another motor neuron can visit and reconnect with isolated muscle fibers, but after 30s, motor neurons become less and less isolated as each year Rescuing muscle fibers becomes difficult. The isolated muscle fibers will eventually collapse and die, so the muscles will decline.

ByBrian Auer

This process tends to further speed up when reaching the age of 60, and this phenomenon was considered scientifically unavoidable. Meanwhile, the research team at McGill University studied on the possibility of preventing or lowering the physical phenomenon of muscle weakening with age due to the difference in momentum, with the cooperation of 29 people who used to act as the world-class top athlete in the 80's The results were presented at the Journal of Applied Physiology of the American Physiological Society journal.

The study compared the first-class athlete group with the healthy group with comparatively low momentum of the same age as the control group. The research team had both groups do simple muscle tests and checked the electrical activity of the muscle under test with a sensor. I applied the measured muscle size and electric activity to my own formulas and found out how many exercise units survived in the participants' muscles and how effective they were functioning.

As a result, the top sports athlete has more than 25% more muscles on the average than other groups. In terms of muscle mass, the group of athletes had about 14% more muscle than the control group. In exercise units, groups of athletes were confirmed as much as 30%, and it seems that individual exercise units are also functioning more effectively than the control group. On the other hand, from the motion unit of the control group, more specific electrical signals issued by the motor neurons in contact with death were confirmed more.

According to Jeffrey Power Associate Professor at the University of Guelph, one of the research leaders, "A group of athletes had muscles similar to young people for decades since the same age." Most former athletes are doing intense exercise more than several hours every week even if they are over 80 years old, and it is thought that muscle anti-aging is successful by exercise. It is difficult to do exercise at the same level as athletes, but some athletes who had hardly exercised until their 50s kept a good muscle condition as well, so that 'it's too late to exercise' It is said that it is not.

ByRoberto Rizzato