Yoga and Truth About Twists

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When we think about twisting through the low back, we often think about the muscles we could be strengthening or stretching through the movement. However, we do not often consider the risks of twisting as for those of us with healthy backs; it does not seem that precarious a movement. For those of us in careers that require repetitive twisting, the dangers of twisting may be apparent to you. Twisting has been proven a factor in the incidence of occupational low back pain.

If this motion has been recognized as a threat for employees in some jobs, how does that relate to a yoga practice? Are all types of twisting bad?

There is no need to panic, but there is a need to learn and become aware of the postures that are potentially perilous and how to remain safe in them. Researchers first thought that twisting could actually cause tears in the intervertebral disc. However, since, the research community has found that the disc is not actually the structure under the most stress at the end range of twisting, but instead the facet joints are. Facet joints are those on the back side of the vertebrae. They limit rotation in varying amounts throughout the entire spine. For example, more rotation is possible in the low back and the neck, than in the middle back. Therefore, the facet joints can take a real beating with excessive, end range, twisting causing joint irritation.

The strain on vertebral ligaments through twisting is minimal; however, the posterior (back side) ligaments can be strained if the joint was in full flexion before the twisting motion. This could be due to the fact that the ligament is stretched and is then more likely to allow excessive rotation, causing injury. However, if you are performing your forward flexion poses properly, you should be alright. “Properly” means that you are maintaining your low back curve; the flexion should take place through your hip joints and not your lower back.

The problem with twisting is that there is no one muscle that is made to move the body through the movement, unlike our low back extensors which have the primary function of extending the low back. Therefore, to accomplish twisting poses, all muscles need to co-contract which dramatically increases the compressive load on the spine. To give you an example of how movements in the lower back compare in respect to their compressive loads, check out these numbers. If you supported 11 pounds 1 meter away from your body (50 Nm of torque) while in low back extension, 180 pounds of force would act as compression on the spine. The same amount of torque supported in a side bend enforces 315 pounds of force, and while twisting, believe it or not, that 50 Nm of torque places an enormous 674 pounds of force through the spine!

Let us apply this to yoga. This research was done with occupational hazards as the focus and therefore twisting was performed while holding a weight of some sort. Although in traditional forms of yoga, weights are not used, our arm can be considered a weight when gravity is acting on it.

Another major concern with twisting is that it should not be combined unsafely with low back flexion as that movement combination creates the greatest risk for disc herniation. Therefore, when you flex forward, always ensure that you maintain your lower back curve, especially if you are also twisting.

This information was not intended to tell you that yoga twists are dangerous, but that you should be aware while in them and to know how to do them safely. Do not meet your end range and be sure to maintain your lumbar curve. If you participate in a form of yoga that uses weights, avoid twisting with the weights. If you go to the gym, twists on the pulley machines are also not recommended, again due to the compressive forces acting on the spine. If you are an individual who is lifting heavy objects often, including babies, boxes, heavy pots, or even gardening materials, keep the objects as close to your body as possible to reduce the load on the spine.

Think about a door and hinge. If you want to slam the door shut; is it easier to accomplish this by pushing the door closer to the hinge or closer to the doorknob? It is easier closer to the doorknob as the distance from the hinge to the doorknob is greater (this distance is the lever arm). The longer the lever arm, the less force required to achieve a certain amount of torque. To simplify: the farther the distance the box you are carrying is away from you , the less weight is required to adversely affect the spine. So, keep things closer to your body while twisting, whether light or heavy, and your spine will take less of a beating.

Take home points:

  • Don’t twist to end range
  • Maintain your lumbar curve
  • Avoid flexion with rotation in your daily life, but while in yoga, be mindful of your curve and your end range
  • If you are lifting objects while twisting, keep them as close to your body as possible to decrease the load on your spine
  • Keep learning about your body and stay healthy!

Support information extracted from: Stuart McGill, Low Back Disorders: Evidence-Based Prevention and Rehabilitation. Human Kinetics. Windsor.



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Top 10 Yoga Poses for Headaches

Yoga can be a beneficial therapeutic tool for relieving headaches brought on by muscle tension and stress. The majority of headaches originate from muscle stiffness and imbalances emanating from the neck and upper back. When headaches set in, using a series of restorative yoga exercises can greatly relieve both the cause and symptoms. Here are our top yoga poses and exercises that naturally treat headaches.

 

1. Cat Pose: The flowing motion of breath and spine helps release tension from the neck and upper back while also pouring refreshing energy through the body and mind.

 

Woman doing Seated Twists

 

2. Seated Twists: Besides increasing circulation throughout the entire length of the spine, the twisting motion in the upper spine (cervical region) often alleviates tension coming from the scalene muscles of the neck (anterior aspect).

 

Woman doing Chest Openers

 

3. Chest Openers: Much of the tension in the back body is a result of muscle dominance from the front body (called Upper Cross Syndrome). Expanding the chest and front shoulder muscles helps break down muscular imbalances and frees the tension coming from the neck.

 

 

4. Eagle Arms: This simple crossed arm pose can be done in Mountain Pose or any natural seated posture. This back expander can reach well into the mid and upper back targeting problematic muscles around the shoulder blades and the base of the neck. Take time in this arm pose to breath slow and full into the upper back and insure that you perform this arm pose on both sides.

 

 

5. Simple Neck Stretches: Gently move through the various muscle fiber lines by allowing your head to float down to one shoulder with gravity, down across the chest and into the other side – repeat with a natural, unforced motion. Avoid letting the head fall back-keep the motion in a half circle from one shoulder to the other. Pause where you find extra areas of resistance.

 

 

6. Child’s Pose: A perfect restorative yoga pose that slightly inverts the body. A gentle flow of extra blood circulates into the head helping relieve tension. With the legs slightly separated, you can easily settle into deep core and back breathing to encourage a flood of circulation to reach deep into the body. Note that the head and neck should be absolutely comfortable. If needed, keep you arms forward or bend the elbows and rest the forearms by your chest/under your shoulders so the palms face up-this will greatly unload any pressure from the neck.

 

 

7. Two Knee Reclining Twist: Unlike our seated twists, this reclining twist can be far more restorative and held longer to bring deeper focus into relaxing the nervous system while the chest expands and rejuvenates the spine. Give extra attention to releasing the shoulders into the mat to release dominance of the shoulder and chest muscles.

 

Woman doing Legs Up Wall Pose

 

8. Legs Up The Wall Pose: This highly beneficial inverted pose is great for developing hamstring flexibility and for improving circulation in the lower limbs. For headaches, the extra flow of blood to the brain and the restorative support can be deeply relaxing and nourishing.

 

Woman doing Alternate Nostril Breathing

 

9. Alternate Nostril Breathing: The aim of alternate nostril breathing is to restore balance to the energy systems. With balance, we find release and calm. This yoga breathing exercise is easy to do for all levels and targets the nervous system by slowing brain waves, calming the mind, and purging stress.

 

Woman doing Relaxation Pose

 

10. Relaxation Pose: After doing a series of restorative yoga poses, take some time to simply relax and release in Savasana. Turn the focus away from the symptoms of your headache and settle into the sensation of mental and physical release. You may find a light eye pillow helpful in moving tension/pressure out of the eyes and forehead. Increase your comfort by placing a bolster under the knees and a thin pillow under the head. To complement the chest openers and reclining twists, lay with the arms open to the sides/palms facing the ceiling.

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