Briefly describe the nature of motor skills, according to the division of actions, human skills are

Operational skills] Generally speaking, operational skills refer to the legal and legal operational activities that are formed through learning. The learning of operational skills is not only a process of physical movement, but also a process of psychological processing, but the degree of psychological participation is different at different stages of skill learning. The learning of operational skills requires not only cognitive processing and analysis, but also actual coordinated limb motor responses.

Operational skills are different from both operational knowledge and mental skills.

Formative stage of operational skills].

1) Operational orientation;

2) Operational imitation;

3) operational integration;

4) Skilled in operation.

Shield is a damage reduction and counter-damage skill. It turned out to be a charge in 18 seconds. It can be stored up to 3 times. Now it is 25 seconds to charge, and can be stored up to 3Times.

When doing restraint work and retreat work, the limbs are in a state of movement, so this kind of work that produces movement is also called power work. The opposite of this is static work, in which the length of the muscle fibers does not change, neither shortening nor elongating.

However, the tension (tension) of the muscles increases, such as when the arms are raised sideways, the length of the deltoid fibers remains the same, but the tension increases to overcome the gravity of the drooping arms.

Muscles are made up of many muscle fibers. When doing movements, muscle fibers can be shortened, passively elongated, or in a state that is neither shortened nor elongated. The work done when the muscle fibers are in a shortened state is called restraint work, which is more common in motor movements, such as the contraction of deltoid fibers to raise the arms sideways.

The work done when the muscle fibers are in an elongated state is called concession work, and the work done when the elbow joint is slowly flexed under weight to elongate the triceps fibers behind the upper arm.

Motor skills are characterized by diminished regulation of consciousness. When people complete a skill, they only care about how to subordinate the skill to the needs of the task at hand, and do not care about the progress of individual actions; The kinesthetic feedback is strengthenedIn the formation of skills, feedback plays an important role in regulating the learning and improvement of the movement of Giyin Li. The sudden appearance of an emergency situation that can maintain the normal level of operation under unfavorable conditions may make the unskilled person feel helpless, but it can bring the skillful to the peak.

As skills are formed, the control of the movement by consciousness gradually weakens, and the entire skill or most of the actions in the skill gradually become an automatic action system. When people complete a skill, they are only concerned with how to make the skill subordinate to the needs of the task at hand, and they are not concerned with the individual actions being performed. Due to the automation of the action system, the capacity of the human brain to process action information is expanded, and the tension of completing the action is also eased.

Answer] Once :d motor skills are formed, they are not easy to forget, and they are more solid than the retention of knowledge. The more complex the motor skill, the longer it will be maintained:

The simpler the motor skill, the shorter the time to maintain it. Psychologists have studied the forgetting process of motor skills, which shows that the forgetting process of motor skills is very different from the forgetting process of meaningless syllables of Ebbing Hosque, and motor skills are not easy to forget.

There are positive transfers, negative transfers, and zero transfers in the learning of motor skills. In the process of learning motor skills, there will be a plateau phenomenon of practice.