What is the name of the sense that lets my brain know where my right leg is without having to look for it?

Proprioception refers to the body’s ability to perceive its own position in space. For example, proprioception enables a person to close their eyes and touch their nose with their index finger.

Other examples of proprioception include:

  • Knowing whether feet are on soft grass or hard cement without looking (even while wearing shoes)
  • Balancing on one leg
  • Throwing a ball without having to look at the throwing arm

In addition, proprioception allows the body to perform simultaneous actions without stopping to think about each one separately, such as running while dribbling a basketball.1

Proprioception is necessary for precise and fluid movements, making it essential to athletes and non-athletes alike. This article discusses how proprioception works, how injuries can impair proprioception, and how to improve proprioception through specific exercises.

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How Does Proprioception Work?

Muscle spindles, the proprioceptors in the muscle, are long proteins that lay parallel to muscle fibers.

Proprioception relies on the relationship between the body’s central nervous system and certain soft tissues, including muscles, tendons, and ligaments.

Within these tissues are sensory organs called proprioceptors. Sensory nerve endings wrap around the proprioceptors to send information to the nervous system. The proprioceptors can sense when tissues are stretched or experience tension and pressure.

For example, the proprioceptors in muscles are called muscle spindles. Muscle spindles are long proteins encapsulated in sheaths that lay parallel to muscle fibers. They work as follows:

  1. When a muscle is extended, muscle fibers are elongated and the coils of the muscle spindles are stretched. (Conversely, a contracted muscle causes muscle fibers and muscle spindles to shorten.)
  2. Nerve fibers in the muscle transmit information about the degree and rate at which the muscle spindle is stretched.
  3. The information is delivered to the nervous system, and a signal to contract or relax is sent to the muscle.
  4. The desired action is performed.

How proprioception works in the muscle.

The entire process takes less than a millisecond and, in some cases, it happens so quickly that it is referred to as a “reflex.” This feedback loop works continually; even when a person is sleeping the brain maintains some level of sensory input.

This continual feedback loop is critical to everyone, especially athletes. For example, a runner can seamlessly transition from soft grass to hard concrete and back again, making unconscious, minor adjustments to stay upright and maintain balance. The runner does not have to think about changing leg and feet movements to accommodate the change in terrain.

The proprioceptors in tendons are called Golgi Tendon Organs (GTOs), and they work similarly to muscle spindles. In ligaments, there is a neural feedback with our muscles that is still being studied and clearly defined by researchers. However, it is been understood that impaired/torn ligaments produce deficits in proprioceptive abilities.

In This Article:

How Can Proprioception Be Impaired?

An injury, such as a torn ACL or a strained Achilles tendon, damages the soft tissue where the proprioceptors are located. Damaged tissues do not function normally and thereby resulting in a loss of proprioception. This loss of proprioception can lead to:

  • The recurrence/chronicity of an acute injury
  • Joint damage over time, such as tendinopathy and arthritis

See What Is the Difference Between Tendonitis, Tendinosis, and Tendinopathy?

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For this reason, healthcare providers emphasize the importance of injury healing and rehabilitation.

Since proprioception is linked to the central nervous system it can also be impaired by neurological conditions, such as Parkinson’s Disease and Multiple Sclerosis.

Improving proprioception
For many athletes and non-athletes alike, injuries can cause individuals to avoid exercise altogether. Injured individuals are advised to speak with a health care provider and develop an active physical therapy routine to engage in during their recovery. The next two pages include several exercises that can improve proprioception.

References

  • 1.Lephart SM, Pincivero DM, Giraldo JL, Fu FH. The role of proprioception in the management and rehabilitation of athletic injuries. Am J Sports Med. 1997;25(1):130-7.

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What is Proprioception? Understanding the “Body Awareness” Sense

At every age, senses help with more than just seeing, smelling, tasting, feeling, and hearing. Senses play an important role in everything from staying balanced, to riding a bike, to knowing when we’re hungry and thirsty.

Here we’ll dive into a sense called proprioception, also known as the body awareness sense.

Learn more about all the senses by visiting our sensory page, or read about the vestibular sense (the balance sense) and interoception (the internal sense).

What is proprioception?

To understand what proprioception is, close your eyes and hold out your hands. Move your arms and hands around. Even with your eyes closed, can you tell how far or close your hands are from your body? That’s your proprioceptive sense at work!

Proprioception is the body awareness sense. It tells us where our body parts are without having to look for them. This helps to know where body parts are relative to each other, which strengthens our coordination skills. It also tells us how much force to use when we’re holding, pushing, pulling, or lifting objects.

Where does proprioception come from?

What is the name of the sense that lets my brain know where my right leg is without having to look for it?
Proprioception is detected by special receptors in the muscles, tendons, and skin. Those receptors communicate with our brain to tell us where our body parts are in space.

In the early years of life, our developing proprioceptive sense creates a map in our mind of where our body part are. Vision helps with proprioception, but it’s not necessary to see your body parts in order to know where your body parts are.

What are some examples of proprioception?

  • Touching face, or touching hands to feet: Once of baby’s 4-6 month milestones is “finding their feet”, which is where they touch their feet with their hands. This milestone is made possible by creating a mental map of the body.

Check out all of baby’s 4-6 month milestones here!

  • Brushing hair: Proprioception helps us know where our arm is in space, and helps us reach our hair without hitting ourselves in the face with the brush or missing our hair. It helps us use the proper amount of force while brushing our hair to not cause any pain.
  • Holding an egg: Proprioception tells us how much force to use while holding an egg so it doesn’t crack.
  • Playing a sport: Proprioception helps with knowing how far to extend a hand to catch a ball, or how far to reach a foot to kick a ball or step on a base.
  • Writing or drawing: Proprioception tells us how hard to write, so you don’t break your writing utensil on the paper.

What is the name of the sense that lets my brain know where my right leg is without having to look for it?

What are signs your child may have a proprioceptive issue?

A proprioceptive processing issue can vary from person to person. Sometimes it will look like a lack of self-control. Children who struggle with self-control may engage in rough play, with pushing, biting, or kicking. Because knowing how much force to apply is a part of proprioception, children with a proprioceptive issue may write too hard and break their writing utensil, or they may drop objects frequently.

What is the name of the sense that lets my brain know where my right leg is without having to look for it?
Proprioceptive issues can also look like clumsiness due to a lack of coordination. Children may struggle to stand on one foot, may bump into people or things regularly, or fall down steps.

A proprioceptive issue can be hard to notice because it may present as a motor skills issue, so be sure to consult a healthcare provider for more information.

How can you help develop baby’s proprioceptive sense?

  • Swaddle baby in early months. This helps baby to get in touch with where their body parts are.
  • Do baby stretches and baby massage so baby can build a map of their body in their mind.
  • Do Tummy Time. Encourage age-appropriate physical activities for baby, as well as motor milestones such as crawling and walking.
  • Try baby games! Many baby games help develop this sense. Here’s one that helps: Around 6 months old, put different textured objects in a box (e.g. scarves) and let baby pull them through a hole in the box.

What sense allows you to know where your limbs are?

Proprioception, or kinesthesia, is the sense that lets us perceive the location, movement, and action of parts of the body. It encompasses a complex of sensations, including perception of joint position and movement, muscle force, and effort.

What is the proprioception sense?

Proprioception is the body awareness sense. It tells us where our body parts are without having to look for them. This helps to know where body parts are relative to each other, which strengthens our coordination skills. It also tells us how much force to use when we're holding, pushing, pulling, or lifting objects.

What is unconscious proprioception?

Unconscious proprioception serves as an important backup to conscious proprioception, and is the sensation of limb and joint position and range and direction of limb movement. It is involved in the acquisition and maintenance of complex, skilled movements such as walking, talking and writing.

What is the sixth sense called?

You've probably been taught that humans have five senses: taste, smell, vision, hearing, and touch. However, an under-appreciated "sixth sense," called proprioception, allows us to keep track of where our body parts are in space.