First, dance? Center of gravity? study
1, the center of gravity of human body
The center of gravity of human body refers to the center of human body weight.
When the human body is at rest, the center of gravity is near the navel. Generally speaking, due to the different effects of height, weight and bone development, everyone's center of gravity is different. In exercise, the point of action of the resultant force of gravity on all links of the human body is the whole body. Center of gravity? , that is? Body center of gravity? .
People naturally stand upright at rest, what is the human body? Center of gravity? Close to the central sagittal plane of the human body, it is slightly inclined to the umbilical cord at the upper edge of the third sacral vertebra, 7 cm in front of it. Accurately speaking, it is located below the navel, and the navel is not the center of the human body. For example, when people stand in front of the railing, they find that the railing is lower than the lower abdomen. The closer they are to the railing, the more uneasy and scared they will be. Once people lose their stability, they may fall down, which is the psychological effect of being close to the center of gravity and losing their sense of security.
In addition, the center of gravity is slightly different with the movement of human position and the change of body shape. When a person is still, the center of gravity is at the only point, but when the posture of the human body changes, the point of action of the center of gravity also changes. For example, if the posture is changed to the posture dominated by the right foot, the action point of the center of gravity will turn to the right, and tilting the center of gravity to the right will not make the center of gravity unstable, but will change with the change of the action point to maintain the balance of the body.
2, the center of gravity of the support point
When the human body stands, the supporting point of the human body weight tends to the heel, which makes the human body relatively natural and stable. When the human body is in a moving state of walking forward, the support point of the center of gravity of the human body will be completed by the movement of the heel from the arch to the sole of the foot, and the feet will roll alternately with the center of gravity of the human body to complete the action of walking forward, while when the human body is in a running state, the support point of the center of gravity of the human body is biased towards the sole of the foot as the main support point. Therefore, the change of the center of gravity contributes to the generation of exercise, improves the efficiency of exercise, and enables the body to easily complete the running action.
Our feet are the support of the whole body weight, and the effective position between our feet, left and right, front and back, and the formed area effectively form the support surface of the center of gravity. In order to maintain balance, the center of gravity cannot leave the effective range of the supporting surface, otherwise it will lose control of the center of gravity.
Therefore, when we discuss the support points of the center of gravity in proper dance, it is not difficult to find that the support points of the heel and sole and the supporting surface formed by multiple points play an important role in the research of the center of gravity in dance.
3. Dance center of gravity
At the dance? Center of gravity? It is an extremely important and worth discussing problem, and it is the key to maintain the balance of dance movements. Dance control of various complex structures; Flow and change between dances; A big jump, turn, etc. , all need balance? Center of gravity? On the basis of. For the maintenance of human balance stability, when the balance surface is large, the stability of the movement is easy to maintain, while when the balance surface is small, it is not easy to maintain the stability of the movement. The larger the supporting surface area, the higher the stability, and the smaller the supporting surface, the smaller the stability.
For example, the tiptoe art in western ballet is quite difficult. On the one hand, it has little support for the center of gravity of the whole human body and is difficult to maintain stability. On the other hand, we should complete many rich and difficult sports skills while lengthening our limbs. It not only brings the western religious concept of advocating God to the extreme; Exaggerated the aesthetic orientation of westerners' openness and enthusiasm, and made it more? Toe tip? This form of performance has become a distinctive representative form in ballet. It is quite difficult to complete graceful dancing, elegant dynamics, light rotation and jumping on tiptoe. Such training procedures and methods are scientific and worthy of attention. The action of standing on tiptoe with one leg is worse than that of supporting one leg with the sole on the ground, while the action of supporting two legs is more stable than that of supporting one leg. ? Center of gravity? The higher the position, the more unstable the balance. Center of gravity? The lower the position, the greater the stability.
The change of center of gravity is closely related to dance movements at any time and anywhere, so the training of center of gravity is an indispensable and important link in dance training, and it is also an important factor for the stability, development and improvement of dance movements. ? Center of gravity? Training is an important part that can't be ignored in dance training. The correct use of the center of gravity can not only better complete the dance movements and technical skills, but also more vividly express the dance dynamics and style. Center of gravity training lacks in-depth exploration and research in all kinds of dance training today. If we refine and deepen the center of gravity training, we will find that it is not only an indispensable and important step in the training system, but also reflects the style characteristics infiltrated by different kinds of dances through different center of gravity changes.
The tiptoe of ballet, the thick base of opera and the inch of Manchu show different skills and styles through different changes in the center of gravity. Therefore, in dance training, we should not only pay attention to the rationality of the center of gravity. We should pay more attention to the linguistic meaning infiltrated in the change of focus.
Second, the significance of the study of Han and Tang classical dance
Classical dance of Han and Tang Dynasties is a genre of classical dance in China. It is based on the most splendid spirit and artistic temperament of Han and Tang Dynasties in the history of ancient civilization in China, with the music and dance cultural tradition represented by Han and Tang Dynasties and the mature opera dance forms since Ming and Qing Dynasties as the fulcrum. ? Han? 、? Don? Two words are just used to distinguish it from? Li Tang? Another name for classical dance. Nowadays, it exists and develops in a complete training system. In the Han-Tang Classical Dance School developed with Sun Ying as its founder, people see the cultural heritage of China for thousands of years. Classical dance in Han and Tang Dynasties is not only an art form, but also conveys the characteristics of the times and aesthetic culture of China from ancient times to the present. When ancient poetry, painting and architecture are presented as classical culture, the dance images in unearthed cultural relics, the dance records in Tang poetry and Song poetry and the vivid images in rock murals all verify the classical forms of China's ancient dance.
Based on the history and culture of China, the classical dance of Han and Tang Dynasties created a large number of plays in the form of dating. Whether it is the barbarism and rudeness of primitive clans and tribes, the romance and leisure in Wei and Jin Dynasties, the elegance in Sui and Tang Dynasties or the elegance in Song Dynasty, the grandeur in Han Dynasty or the exquisiteness in Ming and Qing Dynasties, each work embodies a unique style of the times, contains historical symbols with unique classical charm and presents aesthetic significance in different eras. In the teaching system, the basic training course, as a basic course, constantly seeks the combination of different styles to train classical dancers and establish a cultural teaching system with China characteristics. From different shapes? Word training? For beauty and splendor? Style combination? From flowing water? Traffic connection? Make public the atmosphere? Step training? Let viewers enjoy the feast of different cultures. Words, short plays, plasticity, balance and rhythm are all related to the focus of dance, while flow connection, limb dissolution and strength speed are all based on the training of focus. We will find that the main reason why the training system of classical dance in Han and Tang dynasties presents a distinctive dance style is that ballet is not used as a training means, and the form of opera is not used as a style dance. This starting point makes the Han and Tang classical dance full of breath and spirit, fully embodies the dance styles of different times, and increases the strength and rhythm of the dance. In order to show the integrity and dynamics of dance, center of gravity training is one of the most important training steps in the basic training course of classical dance in Han and Tang Dynasties.