Pilates Technique Thursday: The Difference Between Stability and Rigidity

Swaying tree adapts to wind, just like stable movement responds without tension.

One of the most common misunderstandings in Pilates teaching is the confusion between stability and rigidity. They are often treated as the same thing, yet they produce completely different outcomes in the body.

Stability is organised, responsive, and adaptable. Rigidity is fixed, over-held, and resistant to change. The problem is that rigidity is frequently mistaken for control. It can look neat from the outside, but it limits how the body actually functions.

A simple way to understand this is to think of two trees in the wind. One tree sways and bends, adjusting to the force placed upon it. The other stands stiff, resisting the same force until it eventually breaks.

The swaying tree is stable.

The broken tree was rigid.

In many classes, what is being taught as “core stability” is in fact a form of bracing. Clients are encouraged to hold, tighten, and fix their bodies in place. Over time, this reduces their ability to move freely and respond to changing demands. The movement may appear controlled, but the quality underneath is often compromised.

True stability allows movement to happen. It supports the body as it moves through space. There is a constant, subtle adjustment taking place, with the deeper support systems responding to load, direction, and speed. The breath remains natural, and there is a sense of ease within the effort.

Rigidity creates the opposite effect. The body locks, the breath becomes restricted, and superficial muscles begin to dominate. The spine loses its natural articulation, and movement becomes effortful rather than efficient. What you often see is someone working very hard, but not moving particularly well.

This pattern is frequently driven by the way we cue. When the focus is always on pulling in, tightening, or holding the centre, clients learn to over-brace. Instead of supporting the movement, they try to control it through tension.

Just like the rigid tree, the body can only resist for so long before something gives.

You can usually recognise this quite quickly. The shoulders begin to lift during simple arm movements. The pelvis becomes fixed and unable to adjust. The ribcage stiffens, affecting the breath. Movement loses its flow and becomes segmented, as though each part of the body is working in isolation.

At this point, the body is no longer learning. It is simply trying to get through the exercise.

Developing true stability requires a shift in how we approach teaching. Rather than asking the body to hold itself still, we need to allow it to organise around movement. The movement itself becomes the driver, with the body responding and adjusting as needed.

Like the swaying tree, the goal is not to be loose or uncontrolled, but to be strong enough to adapt.

Language plays an important role here. When cueing becomes more specific and less about general bracing, clients begin to find a more natural organisation. Encouraging length through the spine, awareness of the centre, and a quieter, more natural breath creates a very different response in the body.

Breath is often the clearest indicator. When it is forced or overly audible, it usually reflects too much effort. When it is quiet and integrated, it supports the movement without adding unnecessary tension.

Changing position, load, and environment also helps. The body cannot rely on holding patterns when the conditions keep shifting. It has to adapt, and in doing so, it begins to develop genuine stability rather than fixed control.

The aim in Pilates is not to create a body that can hold itself rigidly in place. It is to create a body that can move well, respond efficiently, and adapt when needed.

True stability is dynamic. It supports movement without restricting it. It allows the body to function as a connected system rather than a series of held positions.

As teachers, the shift is subtle but important. Moving away from control through tension and towards control through organisation changes not only how the body moves, but how it learns.

And just like that tree in the wind, strength is not in resisting the force. It is in how well you respond to it.