Читать книгу The Yoga Back Book: The Gentle Yet Effective Way to Spinal Health - Stella Weller - Страница 8

Good posture when sitting puts the pelvis in a neutral position, that is, neither tilted backwards not tilted forwards (remember that posture is controlled mainly from the pelvis).

The spine should be supported along its natural curve. The height of the seat should be such as to place the knees level with, or higher than, the hips (Fig. 5).

Figures 6 and 7 are examples of poor posture in sitting. In Fig. 6 the pelvis is tilted backwards. This flattens the normal curve of the lower spine, stretching ligaments and eventually producing pain.

Fig. 5. Good posture in sitting

Fig. 6. Poor posture in sitting

Fig. 7. Poor posture in sitting

In Fig. 7 the pelvis is tilted forwards, thus distorting good posture in much the same way as prolonged standing does. This, too, can lead to back strain and pain.