The weight loss principle of aerobics: the combined effect of energy metabolism and fitness function.

II. The Weight Loss Principles of Aerobics

Aerobics originated from traditional aerobic fitness exercises. It is a type of aerobic exercise that utilizes the body's aerobic system for energy when oxygen supply is sufficient. It is a sustained, low-to-moderate intensity, full-body exercise that primarily trains the practitioner's cardiopulmonary function and forms the basis of aerobic endurance. Therefore, we can understand that aerobics has weight-loss benefits. This is mainly reflected in the following two aspects.

(I) Energy Metabolism in Aerobics

The direct energy source for aerobics exercises comes from adenosine triphosphate (ATP), which is the direct energy source for all other cellular activities in the human body (such as glandular secretion and ion transport during nerve cell excitation). ATP is stored in cells, with muscle cells having the highest concentration. Furthermore, aerobics exercises are primarily performed through muscle activity. During exercise, ATP stored in muscle fibers is rapidly broken down into adenosine diphosphate (ADP) and inorganic phosphate (PI) under the catalysis of ATPase, releasing energy to pull muscle filaments, shorten muscle fibers, and complete the work. However, the amount of ATP stored in muscles is relatively small, requiring continuous breakdown and synthesis to meet the needs of muscle activity and sustain it. Depending on the specific exercise, ATP synthesis energy comes from three sources: the breakdown of creatine phosphate; glycogenolysis; and the oxidation of glucose and fat. Therefore, aerobics can achieve the goal of weight loss. Of course, this requires a certain amount of exercise; the increase in energy consumption depends on the intensity and duration of the aerobics exercise.

(II) The fitness function of aerobics

The purpose of aerobics is to improve fitness and body shape, enabling people to enjoy health and a fulfilling life. Only when all bodily indicators are healthy can weight loss be easily achieved and weight gain be prevented. Therefore, the fitness function of aerobics can promote successful weight loss, mainly in the following ways.

1. Aerobics exercises can promote the improvement of cardiovascular function.

Long-term participation in aerobics can thicken myocardial fibers, enhance myocardial contractility, increase cardiac output, and improve blood supply capacity; it also helps supply oxygen and energy to brain cells, improving cognitive abilities. Simultaneously, it provides more oxygen and nutrients to cells throughout the body via the circulatory system, improving metabolism, reducing fat deposition, delaying arteriosclerosis, and benefiting overall health.

2. Aerobics exercises can improve respiratory system function.

Aerobics has a positive impact on the respiratory system. It increases breathing depth and the amount of gas exchanged with each breath. This benefits the respiratory muscles by allowing them to rest and improves the respiratory system's functional reserves, ensuring that the body's oxygen needs are met during exercise. This improves overall function and promotes the aerobic breakdown of glycogen and fat, thus achieving weight loss.

3. Aerobics exercises can improve the function of the digestive system.

Aerobics can also improve the function of the digestive system. Because muscle activity consumes a lot of energy, and aerobics involves a lot of full-range hip movement, it stimulates gastrointestinal motility, which can enhance digestive function, help absorb and utilize nutrients, and thus improve the ability to digest food, effectively preventing obesity caused by overeating.

4. Aerobics exercises can improve the function of the nervous system.

Aerobics consists of a variety of movements. Long-term practice can improve the flexibility and balance of the nervous system, thereby promoting the regulation of the body's endocrine system, enabling the nerves that suppress appetite to function effectively, and preventing obesity.

Basic movements of aerobics

There are many types of aerobics, and the specific routines vary greatly, but all these diverse routines are composed of some basic movements. These basic movements refer to the most typical and representative movements in aerobics. They are essential for beginners to master; only by mastering these basic movements can one attempt more difficult movements, ultimately achieving the goal of weight loss and fitness. Generally, basic aerobics movements are categorized by body part: head and neck movements, upper limb movements, trunk movements, and lower limb movements.

I. Basic Head and Neck Movements

(I) Basic Movement Methods

In aerobics, the basic head and neck movements mainly include flexion, rotation, and circling.

1. 屈

Flexion refers to the bending of the angle of the head and neck joints of the practitioner, including forward flexion, backward flexion and lateral flexion.

Method and key points: Perform neck flexion exercises in four directions: forward, backward, left, and right. Keep your body upright and perform the movements slowly to fully stretch your neck muscles.

2. Transfer

Turning refers to the movement of the practitioner's head and neck, which is divided into left turn and right turn.

Method and key points: Keep your head upright, then turn your head and neck 90° to the left or right along the vertical axis of your body. Note that the jaw should turn smoothly from side to side.

3. Around

"Circling" refers to the head moving around the neck as an axis, making movements of different arcs.

Method and key points: Keep your head upright, then rotate your head and neck 360° to the left or right along the vertical axis of your body. Rotate your head slowly and evenly, not too quickly. Ensure the movement is complete; when turning backward, tilt your head back.

(II) Weight Loss Effect

It can fully stretch and relax the neck muscles, keep the head and neck flexible, promote blood circulation in the neck, and help eliminate neck fat.

(III) Practice Methods

Those who want to lose weight can practice basic head and neck movements using the following methods.

1. Flexion exercises

Preparation: Stand upright with your feet together, hands on your hips, and head and neck relaxed.

1-2 counts: Keep your body upright, slowly bend your head forward, trying to touch your chin to your body, hold for 4 seconds and return to the starting position.

3-4 counts: Perform a backward bending motion of the head, hold for 4 seconds, and then return to the starting position.

5-8 counts: Then, flex your head to the side as much as possible, ideally touching your ear to your shoulder, hold for 4 seconds, then return to the starting position and repeat on the other side.

2. Rotation Exercises

Preparation: Stand upright with your feet slightly wider than shoulder-width apart, hands on your hips, and head and neck relaxed.

1-2 beats: Keep your body and head upright, slowly turn your head 90° to the left, hold for 4 seconds, and then slowly return to the original position.

3-4 beats: Slowly turn your head 90° to the right, hold for 4 seconds, and return to the original position.

5-8 beats: The head circles 360° from left to right and back, then returns to the starting position; then circles 360° from right to left and back, then returns to the starting position.