Yoga and Developing Proprioception

Yoga and Developing Proprioception

Balance plays a pivotal role in our lives whether we notice it or not. We are constantly bombarded with external forces that disrupt our equilibrium. So much so, that we often fail to notice, as our bodies are so effectively equipped to deal with such disturbances. We do, however, notice when our systems fail us, resulting in injury or an embarrassing moment, or even worse, both! Understanding balance in its entirety makes it much easier to comprehend movement, appreciate how incredible our bodies truly are, and realize how something like yoga can develop abilities that we didn’t even know we possessed.

There are three systems in the body that contribute to the function of balance: the visual system, the vestibular system and the proprioceptive system. The visual system contributes to the execution of balance as it provides feedback as to where we are in space. The vestibular system is a network of canals in the inner ear which supply information of our head’s position (tilted, rotated, flexed or extended). The proprioceptive system is composed of sensory receptors in the muscles and tendons that inform the central nervous system as to the varying lengths of muscles, as well as force loads traveling through tendons. This notifies us as to how and where our body and limbs are oriented in space.

The human body has many regulating control systems that function via the nervous system. Receptors exist in our muscles which recognize when the length of the muscle fibers are changing. These act as a protective mechanism for the muscles. With excessive lengthening of a muscle, a reflex will be initiated which will cause the muscle to contract in order to prevent a ligament sprain or muscle strain injury. A similar regulation system exists in tendons, but it instead is dependent on the force being loaded through the tendon rather than on its length. These two regulatory systems of the muscles and tendons contribute to what is known as proprioception.

Proprioception is the new catch term. Rehabilitation programs are now focusing their attention on muscle coordination and muscle inhibition with the intention of improving muscle firing (contracting) patterns. Throughout our lives, we develop motor patterns which are essentially the blueprints that muscles follow in order to accomplish a movement task such as walking or even chopping up vegetables. Typically, muscular weakness, inhibition (muscle not firing properly), and / or pain will cause a normal motor pattern to become abnormal.

For example, the primary function of the gluteus maximus (buttock muscle) is to extend the hip. However, many people have gluteus maximus muscles that are either inhibited or weak. Therefore, the hamstrings or lumbar spine (low back) erector muscles are forced to facilitate hip extension. Due to this novel, aberrant, motor pattern, these individuals commonly complain of tight hamstrings, irritated sacroiliac joints, and / or chronic low back pain. The probability of injury increases dramatically, as does the inefficiency of movements when muscles are regularly recruited to compensate for weakness, inhibition or pain. These abnormal patterns can be corrected; however, they do require specific rehabilitation.

When an individual’s balance is jeopardized by external factors such as being bumped into or slipping on ice, the correct muscles must be prepared to engage immediately. Proprioceptive rehabilitation focuses on training muscles to accelerate their ability to achieve maximum contraction. (Liebenson, p. 529) This is why training on unstable surfaces such as wobble boards and Bosu balls is currently so popular. By training on an unsteady surface, balance is constantly being challenged. The correct muscles must contract rapidly in order to counteract the forces that the disrupted balance is placing on the body. When muscles can respond quickly to perturbations, injury is less likely and performance is more likely to be enhanced.

Proprioceptive training is relevant for all people in all stages of life. With youth comes silly antics, sports and activities that place us at an increased risk of injury, despite relatively strong, healthy bodies. With age, our vision becomes diminished and our vestibular system begins to deteriorate; however, our proprioceptive system can be quite well preserved. As these changes occur throughout our lives, it is obvious that our balance becomes increasingly endangered. Decreased bone density is commonly associated with increasing age, as is the concern for deficient balance. Therefore, it only makes sense that fracture due to falls is the next concern to consider in this equation. The risks associated with hip fracture in the elderly are severe and often fatal. Proprioceptive training can aid in the prevention of falls and the subsequent concerns of pneumonia and death. Hence, in our younger, untamed years, having a well developed proprioceptive system will aid in the avoidance of plaster casts and time away from the activities we love. Similarly, in our elder years it will assist in the evasion of falls and succeeding complications.

Now that the importance of a healthy proprioceptive system has been made frighteningly clear, it is time to discuss further, how this can be achieved. The soles of the feet, the sacroiliac area and the neck are the three most richly supplied areas of the body with proprioceptors. (Liebenson, p.515) Due to this fact, these areas can be most affected by proprioceptive training. A technique now being used is known as sensory motor stimulation (SMS). The body creates motor patterns which can be altered both negatively and positively. The principle behind SMS is that abnormal blueprints can be corrected by reeducating the nervous system. (Liebenson, p.514). This learning comes from challenging the sensory system to convey messages appropriately and quickly to muscles that are required to fire both rapidly and maximally.

In yoga, it is taught that the longitudinal and transverse arches of the foot should be lifted. This means that both the inside and outside of the foot should lift while ensuring that all four corners of the foot remain in contact with the floor. The toes should be spread and should not be used as a lever by which to maintain lift through the arches. Therefore, they should gently rest on the ground. This “yoga foot” helps to increase the sensory feedback to the CNS, therefore improving the stability of the body in the upright position. (Liebenson, p.518) Working with the yoga foot through poses will heighten the sensory feedback from the body, especially during balance poses during which the proprioceptive system is ultimately challenged. Via this challenge, great improvements to the system can be made.

As certain poses become less of a challenge, increasing the demands on the systems of balance will allow for continual improvement. Some balance poses will stress the system more than others. However, the demand will be determined by the skill level of the practicing yogi. For example, for an instructor who has been practicing for years, revolved half moon pose is a piece of cake in regards to balance. However, Tree Pose can be a real tribulation for a beginner. This illustrates the point that balance can be both trained and improved via the practice of yoga. Drishti (gaze) plays with the visual component of balance as it often involves looking in a direction that makes the body feel unsteady. By utilizing drishti appropriately, it will further increase the difficulty of balancing in many poses, therefore providing opportunities for improvement of the balancing systems. Since the cervical spine has such a high density of proprioceptors, rotating the head to follow the correct drishti will often make us feel as though we are off balance. Again, with practice, this will become easier and with an associated enhancement of balance.

In this sort of training, it is important to ensure that the muscles are as free as possible of both scar tissue and trigger points as they can alter the ability to perform appropriate muscle firing patterns. Treatments such as Active Release Technique ® and Graston Technique ® are effective methods of ridding the tissues of such hindrances. Unhealthy tissues decrease the muscle’s aptitude to contract appropriately, initially causing the abnormal patterns. Therefore, it is ideal to attempt to have healthy muscular tissue before training.

With well developed balance comes great improvements. Balance is one very important element to a healthy neuromusculoskeletal system. If the proprioceptive system is able to adapt well to the forces placed upon it, half of the battle is won. The other half includes muscular strength and endurance which go hand in hand with proprioception. Without the former two, the latter can not optimally function. One should address the health of the muscular tissues and aim to improve the motor firing patterns, strength and endurance of the muscles. This will aid in the prevention of injury and contribute to peak performance: something which is desirable at every age.

Explore the Anatomy and Correct Alignment of Headstand Pose

Explore the Anatomy and Correct Alignment of Headstand Pose

Knowledge dissolves fear. With a basic understanding of the structures in your neck, and application of these five keys, one can practice sirsasana safely.

Let’s first take a look at the anatomy, and the neck’s role in our daily life.

The seven little bones of the cervical spine (neck bones) are unique in that they are designed for mobility rather than stability. Like other joints in the body, where stability is sacrificed for mobility, the primary purpose of the C spine in daily life is ease of movement. Therefore, ideal alignment and muscular harmony are particularly important.

The load bearing structures of a cervical vertebrae are the body and two articular facets. A typical cervical vertebral body is approximately two centimeters in diameter depending on the vertebrae (C3 – C7), gender, and individual differences. This is comparable to the diameter of a dime. One may make the comparison of a lumbar vertebral body and cervical vertebral body to the chunky heel of a walking shoe to a high heeled pump. Imagine walking a gravel road in stilettos versus the former.

Another feature worth noting is that the C spine houses the vertebral arteries. Transverse foramen, or holes from top to bottom on the side wings of the bones, house this paired blood vessel which travels up to the brain, taking a rather alarming posterior jog at the top of the neck bones before entering the skull. Symptoms of blocking this small artery include dizziness, blurred vision and occipital headaches. Any lesion compromising the integrity of this passage way is exacerbated by misalignment and the additional and uncustomary weight of your body on the cervical vertebrae in a posture like sirsasana.

Nerves exit the intervertebral foramen (holes in the sides between the neck bones), the branches of which pass laterally between the anterior and middle scalene muscles. These muscles help to hold your head and neck up like guide wires, and provide movement in your neck. Overuse these muscles through misalignment or overload them, and they will become inflamed or tight, possibly pinching the nerves.

How to Safely Practice Headstand (Sirsasana)

Armed with this information, how can you incorporate sirsasana safely into your practice? Headstand or any posture for that matter doesn’t have to look like the pose in your yoga syllabus to start. Practice the actions of the pose in a modification, and you will receive more benefit than forcing the pose.

Here are some important points to practice sirsasana.

1. A strong headstand begins with sensible upright posture.

Carry your upper palate above your physical heart. Assume a natural lordosis in your neck. Your best posture will be your tallest, most easeful posture. Maintain this easeful alignment of your spine in upright yoga postures. If you don’t know what good alignment feels like upright, you won’t know what it feels like upside down.

Practice holding Tadasana in ideal alignment and full attention for several minutes. To simulate the postural muscles further, root down from the outer hips into your feet. Place a block on top of your head while standing, and root up into it from your upper palate as you gently resist. Breathe fully to expand and lengthen your torso. Drop your shoulders away from your ears, and slide the upper arms back to widen the clavicles (collar bones). Invite the ribs back, as this action tends to cause them to splay forward. Breathe into your back, particularly just above the waist.

Practice integrating your body from head to feet with these polar actions of rooting and lifting. When you are in perfect alignment, your body will feel like your favorite pair of walking shoes: No friction, no effort, just ease.

Which brings me to the next key.

2. Stretch your hamstrings and plantar fascia.

To get into any posture, the closer to ideal postural alignment you can get, the less likelihood of injury. To keep your neck safe in headstand, you need to be able to align your entire spine before taking away the support of your feet. In order to achieve this, the back of your legs and soles of your feet must be supple enough to walk into the posture without rounding the lower back and therefore the neck.

3. Apply the rules of progressive overload.

No one walks into a gym and does a clean and jerk with 150 pounds off the bat with no experience. So why would headstand be any different? The neck is accustomed to bearing a mere ten pounds of weight. Add resistance incrementally in weight and duration.

4. Create a stable foundation.

** **When you are ready to do sirsasana, interlace your fingers into prayer hands, with the exception of your pinky fingers. Your pinky fingers should be stacked, overlapping each other front to back. You should be able to see both middle fingers from above but not any of your palm to start–so slightly pronate your forearms. Once you tuck your head into your palms, the tendency is to roll onto the dorsum (back) of your hand. Starting in slight pronation will bring you into neutral alignment once you are in the posture. Now root down through parallel upper arms into the forearms, wrists and hands while keeping the spine neutral and your chest open. Nestle the back of your head into your hands. Distribute the weight between the crown of your head, forearms, wrists and hands.

5. Keep your mouth shut.

This one is mostly for teachers. Although designed primarily to aid in tongue movement and swallowing, the variety of muscles attached to the base of the tongue help to support your neck. Anchor the tongue to the roof of your mouth for additional stability. When it comes to standing on your head, recruit as much help as possible. So teachers, explain your demo first, and don’t speak once you are in the posture.

Precautions and Contraindications

There are precautions and contraindications to performing sirsasana, such as osteoarthritis of the C spine, any autoimmune disease affecting the musculoskeletal system, diabetes, heart condition, degenerated discs, down syndrome, or any other pathology affecting the neck.

However, even with these conditions, one can enjoy many of the benefits of the pose by simply embodying the actions of the pose in a modified form. With patience and keen attention, headstand can be performed safely to benefit your wellbeing.

Naomi Friesen possesses a deep understanding of the physical body through 20 years of teaching movement and anatomy. Students benefit from her knowledge of sound biomechanics by receiving safe and effective instruction. A personal trainer, pilates instructor and lifestyle/weight management coach for 12 years, she now teaches yoga after receiving her yoga instructor certification through Open Source Yoga School. Naomi’s intention is to facilitate connection for herself and students through yoga – connection to Source, connection between the parts of our body, our connection to others.


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