一个舞蹈演员,尤其是芭蕾舞演员,首先需要的是会站正,要把全身各个关节用肌肉协调成一个整体,象顶梁柱一样结实,象青松一样挺拔,推不倒,摇不动。大腿以下又是旋外转开达到芭蕾的审美规格。这是最最基本的能力和功夫。在众多肌肉协调中,我着重强调起了很大作用的一块——臀大肌。这块肌肉很发达,直接位于皮下,起于骼骨翼外面,骶骨、尾骨后面,止于臀肌粗隆。它的总机能是使大腿在髋关节外伸、外旋,外半部使大腿外展,下半部使大腿内收,保持站立姿势。有许多肌肉,如:背长肌,腹直肌、腹外斜肌、腰方肌、骨盆底肌、梨状 A dancer, especially a ballerina, first of all need to stand upright. It is necessary to coordinate all the joints of the body with the muscles and make them as strong as pillars. They are as tall and straight as pine and do not push or shake. Below the thigh is turned outside to reach ballet aesthetic standards. This is the most basic ability and effort. In many muscle coordination, I emphasize a great role - gluteus maximus. This muscle is well developed, directly under the skin, starting from the outside of the iliac crest, behind the sacrum and coccyx, ending in the gluteal trochanter. Its overall function is to make thighs in the hip extension, external rotation, the outer half thigh outreach, the lower half of the thigh adduction, to maintain a standing position. There are many muscles, such as: dorsal longus, rectus abdominis, external oblique muscle, lumbar muscle, pelvic floor muscle, pear