Proprioception is an automatic sensitivity mechanism in the body that sends messages through the central nervous system (CNS). The CNS then relays information to the rest of the body about how to react and with what amount of tension. Human beings "train" for proprioception in the quest for efficient everyday movements. Proprioception is unconscious initially, but can be enhanced with training, according to Greg Niederlander, an exercise physiologist. Specialized sensory receptors in the muscles, joints and connective tissues enable the body to process information from a variety of stimuli, and turn that information into action. "Through conscious appreciation and cognitive processing of the body's position in space, the central nervous system and sensory receptors can be conditioned to be more responsive to length and tension in the muscles and tendons," says Niederlander. Additionally, the skin, palms of the hands, soles of the feet and other senses collaborate to communicate with the brain about muscle tension, weight shifts, load and range of motion. "There is a fine line between proprioception and kinesthetic awareness," says Paul Chek, founder of the CHEK Institute in Encinitas, Calif. "Improving one often improves the other. For example, performing any functional exercise that requires you [to] maintain your center of gravity over your base of support will contribute to improvement of kinesthetic awareness (a sense of one's whole body), as well as proprioception." Chek uses an example of skiing at high speed, which requires reflexive movement intelligence: "When skiing down a mountain at high speed, all at once you must be able to sense the position of your limbs relative to the rest of your body, the position of your body relative to the earth and gravity, and interaction with the skis and terrain." Your body automatically coordinates with stimuli obtained from the immediate experience and turns them into physical action.
The key to creating what Chek refers to as movement intelligence involves clients becoming consciously aware of their movements, and of the information their bodies are absorbing. To do this, stimuli is created to elicit a movement reaction through a variety of tasks or exercises. As skill improves, more stimuli are needed to continue improvement. This type of exercise planning involves integration of the mind and body, combining balance, strength and quickness. The result is clients' heightened ability to make spur-of-the-moment decisions about what their capabilities are in any given situation. A common example of loss of proprioception can be seen in any athlete who is required to use the arms and shoulders with precision, such as shooters, boxers, throwers (baseball), archers, and even people who throw darts in the bar or shoot pool, says Chek. For instance, he says, "After an injury to the shoulder joint, I have seen many people complain of a loss of accuracy and performance, which I have corrected using exercises to improve proprioception." Have your clients try this: With both arms, pick up a chair and feel its weight. Pick it up and set it down about 10 times. Then, pick up another chair that looks the same but is lighter. They'll immediately notice how the body's 'memory' for tension kicks in. The body expected to pick up the same weight, but didn't. Proprioceptive trace is an aftereffect of the immediate proprioceptive experience. In this situation, the body's memory kicks in to produce a certain predictable amount of force/effort and doesn't need it. For instance, if you've ever gone backpacking with 40 pounds of weight, then removed your pack, you'll remember feeling feather-light. For seasoned backpackers, the load does not impose much demand; therefore, they experience much less proprioceptive trace. Have your clients try this: Run or walk on a treadmill for a lengthy period of time. Step off, and they'll experience a surreal floating sensation as they continue to walk.
Activities that require balance, coordination, agility and power, and movements that challenge clients' normal range of motion, are great ways to cross-train for proprioceptive adaptation.
Balance: Balance is the body's ability to right itself. It is improved with proprioceptive feedback.
Strength: The core strength of the abdominal, back and gluteal muscles is the foundation from which all movement originates. Strength is the catalyst of postural endurance–the ability to maintain core stabilization, balance and control.
Quickness: If your clients have ever tripped and didn't recover their balance, perhaps it was because they weren't physically quick enough to pull off a recovery. They can improve their proprioceptive abilities by challenging their bodies to be more reactive. The goal for training is to shorten the amount of time that it takes
to mentally react and to physically move to accomplish the task. The ability to move more quickly and powerfully stimulates more accurate transmission of instructions from the nervous system to the working muscles, and recoveries can happen with less effort.
Constantly repositioning the body keeps it naturally aware of its surroundings. The movements aren't necessarily planned, and success is based on stabilization, control and trials, not necessarily reps and sets. Keep in mind that some of the most effective training for body awareness takes place in more frequent, quicker exposures to challenging activities, rather than long durations of "practice." Create situations for your clients in which they can enhance their ability to sense body positions and speed of movement relative to a fixed point, such as a foot or hand. A good example is the classic drunk-driving test where you must touch your nose with your head tilted back and your eyes closed.
Chek also suggests that, by reducing vision with any exercise and/or by using exercises that require increased positional sense, such as with balance boards or exercise balls, you can create nearly any type of proprioceptive training situation
The following exercises and body systems have an effect on proprioceptive awareness: