It is parallel to the central gravity line and runs from the symphysis menti to the pubic symphysis (Fig. 5.2). Its course depends on pressure conditions in the thorax and abdomen. Hence, it gives clues about the correlation between posture and the pressure conditions in the cavities. When the postural equilibrium changes, pressure conditions in the abdominal and thoracic cavities adjust. Increased pressure in the abdomen, for example, changes the course of the anterior body line and thereby also that of the central gravity line.
Because the diaphragms are important for the balance of pressure in the cavities, the anterior body line is in close contact with them. The tension of the abdominal wall is related to the tension of the thoracic diaphragm. The following two scenarios can occur (Fig. 5.3a, b):
The Anterior Body Line Falls in Front of the Pubic
• Increased pressure on the abdominal wall
• Crowing tension on the inguinal ligament, which can lead to hernias
• Increased cervical spinal column (CSC) lordosis
• The chin is stretched forward and up.
• Tensions in the cervicothoracic, thoracolumbar, and lumbosacral junctions (CTJ, TLJ, LSJ)
• Recurvatum in the knee
• Susceptibility to otorhinolaryngology (ORL) disorders
The Anterior Body Line Falls Behind the Pubic Symphysis
• Abdominal pressure shifts backward onto the lower abdominal organs and the aorta and iliac vessels.
• The CSC is stretched and the chin is pulled in.
• Thoracic spinal column (TSC) kyphosis and tension between the shoulder blades
• Hanging shoulders
• Tendency to lumbar hyperlordosis
• Tendency to organ prolapse
• Tensions in the iliosacral joint (ISJ) area
• Pull on the ischiocrural musculature
• Weight shift onto the heels
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If you weaken the center of any freestanding structure it becomes unstable. Eventually, everyday wear-and-tear takes its toll, causing the structure to buckle under pressure. This is exactly what happens when the core muscles are weak – it compromises your body’s ability to support the frame properly. In recent years, there has been a lot of buzz about the importance of a strong core – and there is a valid reason for this. The core is where all of the powerful movements in the body originate – so it can essentially be thought of as your “center of power.”