The speed of the action depends mainly on which

The speed of action depends on strength on the one hand, quality on the other, and flexibility on the other. The greater the force, the less mass, the greater flexibility, and the faster the movement.

Almost all sports rely on the generation of speed, and success depends on the ability to complete the task in the shortest possible time.

There are three major manifestations of speed quality.

1.The speed of movement (also known as the velocity of displacement).

For example, the typical 100-meter and 200-meter track races, as well as the 40-yard sprint for soccer and rugby, the latter two require not only straight acceleration but also various lateral movements.

The speed of movement mainly depends on the frequency and amplitude of the action, that is, the number of actions completed per unit of time and the amplitude of the displacement of each action in a specific direction of movement.

Take running as an example, if you want to run fast, stride length and cadence are key.

Stride length depends on muscle strength, limb length, and hip flexibility.

Cadence depends on the excitability of the motor centers of the cerebral cortex and the coordination between the centers, as well as the percentage of fast-twitch fibers and their hypertrophy.

When our cadence and stride length increase, so does our running speed. Of the two workouts, cadence is a bit more trainable because our stride length is largely determined by height and leg length, and Usain Bolt is a good example.

But! This is for higher-level athletes, because at their level, the cadence is more trainable, and the stride length is almost at the upper limit.

For ordinary people, many people can't even take a step or lift their legs due to the problem of flexibility and strength. Just imagine, under the same cadence, your stride length is one meter, and others are one meter five, and the gap is very large. So it's not too late to increase your cadence when your stride length improves.

The action speed mainly refers to the virtual to rely on ().

a.The phosphorphogen system provides energy.

b.Lactic acid energy system for energy.

c.Aerobic oxidation for energy.

d.Oxygen-free orange rock system for energy supply.

Correct Answer: a

Action speed is the ability of the human body or a certain part of the human body to quickly complete a certain action, and the action speed is an indispensable element of technical action, which is manifested as the swing speed, hitting speed, kicking speed and kicking speed when the human body completes a certain technical action;

It also includes the number of repetitions per unit of time (i.e., the frequency of the action) in which a single action is performed consecutively.

The speed of movement of any part of the athlete's body depends mainly on the function of the central nervous system, the strength of the muscles that cause the movement of that part, and the rationality of the technical movements.

The length of time it takes to complete a single action is known as the speed of action.

1.Definition and meaning of action speed

Action speed is an evaluation of how quickly a person can complete a single action. When athletes and production workers need to perform complex skills or operations, the better the speed of the movement, the higher the efficiency and results.

2.Factors that affect the speed of action

Many factors can affect the speed of action, such as physiological characteristics, skill level, surroundings, and mental state. Among them, physiological characteristics include physical ability and genetic inheritance, skill level refers to whether you can master the correct skills and methods, the surrounding environment refers to the temperature, humidity, light and other factors that affect the movement, and psychological state includes emotion, pressure, self-confidence, etc.

3.How to boost the speed of the action

To increase the speed of movements, it is necessary to practice the correct posture and technique of the movements, and to maintain proper physical exercise. In addition, you can also increase the speed of movement by improving the surrounding environment and relieving psychological stress.

4.Action speed measurement and evaluation

In order to measure and evaluate the speed of movement, some common methods are to use a timer to record the time it takes for an action to be completed, or to evaluate the speed of action by analyzing the acceleration and speed of the movement. In addition, analysis and evaluation can be carried out using video playback, etc.

In short, action speed is an important indicator to evaluate and improve the level of individual completion of a single action, and it has been widely used and studied in various fields. Action speed refers to the ability of the human body or a part of the human body to quickly complete a certain action.

Action speed is an indispensable element of technical action, which is manifested in the swing speed, hitting speed, kicking speed and kicking speed when the human body completes a certain technical action, in addition, it also includes the number of repetitions per unit time (i.e., action frequency) when completing a single action continuously.

Common methods used to improve movement speed include techniques to improve technique, strength and flexibility training, and specialized training methods. For training methods to improve technique, please refer to the Technical Training section, and for training methods to improve strength and flexibility, please refer to the Strength Training and Flexibility Training section.

Answer]: CC [Analysis] Speed refers to the ability of the human body to move quickly, including reaction speed, movement speed, displacement speed, and speed endurance.

The speed of movement mainly depends on the skill level, the speed of mental reactions, the physical state and the mental state.

The speed of the reaction depends mainly on the characteristics of the person's receptors (vision, hearing) and other analyzers, as well as the central nervous system.

and the coordination between neuromuscular. The quality of reaction speed is greatly affected by genetic effects.

The state of mind depends primarily on the functioning of the central nervous system, the strength of the muscles that cause movement in that area, and the rationality of the technical movements.

To be in the best condition, you need to eat a reasonable and healthy diet, eat more fresh vegetables and fruits, participate in more outdoor activities, do physical exercise, drink less alcohol and do not smoke, so that you can become healthier and maintain a happy mood.

(1) Do all kinds of ball games:

Push the ball with both hands, followed by the practice of starting to catch up with the rolling ball;

Throw the ball forward with both hands, then run out to catch up and catch the ball.

2) Reaction exercises of various game natures;

3) Exercise of pedaling the starting gear by giving orders or listening to signals (passwords, applause, etc.);

4) Semi-crouching position, quickly jumping up and touching high objects when you hear the sound of gunshots;

5) the fastest swing arm exercises, lasting 5 10 20 seconds;

6) the highest frequency of various forms of high leg lift running, lasting 5-10 seconds;

7) The fastest frequency of small steps, half-high leg runs, distance of 30 to 40 meters;

8) Run with a fast back pedal to complete a distance of 50 100 meters (timing, step counting);

9) Run in quick strides, complete the distance of 50 100 meters (timing, step counting);

10) Run quickly on one foot, complete the distance of 30 to 60 meters (timing, step counting);

11) Start in an upright position, gradually lean forward and then run out quickly;

12) On a 2 3 degree inclined track, quickly complete the uphill or downhill acceleration exercise, at a distance of 40 50 meters, with both hands swinging the forefoot and raising the back heel.