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在生理卫生教材第33页中,介绍了人体下肢肌中的臀大肌有伸大腿的作用,就是说当臀肌收缩时伸大腿。可是学生们对“伸大腿”这三个字的含意却常出现两种不同的理解。一种理解认为既然是臀大肌收缩,则大腿应向后伸;另一种理解认为既然是伸大腿,当然应该向前仲。那么臀大肌收缩时,大腿的运动状态究竟该如何呢?这从人体解剖生理学角度进行分析,就不难得出正确结论。大腿的运动方向取决于髋关节所处的状态,而髋关节的运动状态又取决于某些骨胳肌。人体的下肢肌包括髋
In the 33 pages of the physical health textbook, the role of the gluteus maximus in the human lower extremity muscles is described as extending the thighs, that is, stretching the thighs when the gluteus muscle contracts. However, students often have two different understandings of the meaning of the word “stretching the thigh”. One understanding is that since it is the gluteus maximus muscle contraction, the thigh should be stretched backwards; another understanding is that since it is stretching the thigh, of course, it should be forward. When the gluteus maximus contracts, what is the state of thigh movement? It is not difficult to draw correct conclusions from the analysis of human anatomy and physiology. The direction of movement of the thigh depends on the state of the hip joint, and the state of movement of the hip depends on certain skeletal muscles. The lower limbs of the human body include the hips