Proprioception explained simply: the sense you never notice – until it's missing.

You reach for the light switch in the dark. You walk down a flight of stairs without looking at your feet. You type on your phone while walking. None of this would be possible if your brain didn't know, at every moment, where each part of your body is.

This sense is called proprioception – sometimes also described as body position sense or the sense of self-movement. The term goes back to the British physiologist Charles Sherrington, who coined it in the early 20th century, from the Latin "proprius", meaning one's own.

How proprioception works

Your muscles, tendons, joints and skin contain sensors that constantly report what is happening:

• Muscle spindles measure how far and how quickly a muscle is stretching.
• Golgi tendon organs report how much tension is on a tendon.
• Joint receptors provide information about the position and movement of the joints.
• Skin receptors add pressure and touch, for instance under the soles of your feet.

The brain puts these reports together into an inner picture of the body – without you having to look. This picture is never quite finished. It is updated with every movement.

Proprioception, balance, interoception – the difference

The terms often get mixed up. A quick sort:

• Proprioception – where your body is and how it is moving.
• Sense of balance – how your head is positioned in space, measured in the inner ear. For steady standing, your sense of balance, proprioception and your eyes all work together.
• Interoception – how you are on the inside: heartbeat, breath, hunger, tension.

Why this sense matters so much

Balance and fall prevention. Proprioception declines with age. A widely cited review (Goble et al., 2009) also describes the good news, though: the system stays adaptable and can be trained. More on this on our topic page on fall prevention for over-55s.

Dexterity and performance. Musicians, athletes and craftspeople work with a particularly finely resolved picture of their body. The more precisely the brain knows what the body is doing, the less effort it needs for the same movement. See our performance topic page.

Pain. Pain research is looking at how body perception and chronic complaints are connected. Many people with long-lasting back pain describe the affected area as feeling "blurred" or "foreign". This is where attention-based movement work comes in.

Training proprioception: two approaches

The familiar approach is proprioceptive training on wobbly surfaces: balance cushions, wobble boards, standing on one leg. It challenges the system through instability.

The second approach works with attention rather than challenge. Instead of disturbing your balance, you refine your perception: small, slow movements in which you sense precisely what moves and how. This is the approach of the Feldenkrais Method. The two approaches complement each other well.

The lesson: the soles of the feet – 3 minutes

Safety: Only do the part with your eyes closed when you have support within reach. If you feel unsteady on your feet or have fallen before, practise sitting down instead: you can make the same circles over your sitting bones.