What effect does compression have on a disc?

Compression on a disc, particularly in the context of spinal discs, leads to an increase in pressure within the intervertebral space. When a disc is compressed – such as during activities that involve weight-bearing or certain postures – the nucleus pulposus (the gel-like core of the disc) is subjected to physical forces that push it against the annulus fibrosus (the tough outer layer of the disc). This interaction creates internal pressure, which can affect the overall biomechanical behavior of the spine.

Increased pressure within the disc space is significant because it can influence how the disc behaves during movement and structure loading. This pressure helps maintain stability and proper alignment of the vertebrae, but excessive or prolonged compression can lead to issues such as disc degeneration or herniation. Understanding this effect is crucial for chiropractic care as it informs practitioners about the importance of posture, loading, and recovery strategies for maintaining disc health and spinal integrity.