23/01/2026
*Tai chi & qigong are about biomechanics, not just energy work*
The alignment adjustment in this image is something we cover in my classes - how to open the lower back by dropping the tailbone and slightly tucking the pelvis under thereby aligning the spine better - moving from figure B (right) to figure A (left).
Not only does this help to load weight optimally in the skeleton but energetically it supports the opening of the main energy channel in the body - the central channel or Chong mai - which runs from perineum to crown just inside the spine.
If you'd like to know more this is covered in my online qigong and meditation classes on a Thursday evening. Message me on twgwithnicci@gmail.com for info on how to join the class
Rib Cage, Pelvis & Spinal Loading
The upper images explain how alignment of the rib cage over the pelvis directly controls the forces acting on the spine. Think of the trunk as a vertical column that must transfer body weight and movement forces efficiently from top to bottom.
In Image A, the rib cage is stacked directly over the pelvis. This creates a vertical line of force through the spine. The diaphragm remains level and domed, allowing pressure to be generated downward and outward in a balanced way. Because of this alignment, most of the load acting on the spine is compressive. Compression, when evenly distributed, is the safest force for the spine and is well tolerated by vertebral bodies and discs.
The arrows in Image A show pressure being contained within the trunk rather than escaping forward or backward. This allows spinal muscles to work efficiently with minimal effort. The lumbar curve is present but controlled, and the spine behaves like a stable pillar rather than a bending hinge.
In Image B, the rib cage is tilted backward while the pelvis shifts or tilts forward, creating a “scissor” relationship. This breaks the vertical stacking of the trunk. The diaphragm becomes angled and flattened, losing its ability to manage pressure evenly. As a result, pressure is redirected anteriorly and inferiorly.
This misalignment significantly increases shear forces at the lumbar spine, especially at the L5–S1 level. Shear forces attempt to slide one vertebra over another, something the lumbar spine is poorly designed to handle. To compensate, spinal extensors and passive structures such as ligaments and facet joints are overloaded. Over time, this contributes to stiffness, fatigue, and low back pain.