- Human Body and Yoga Ravi Subramaniyam
- Hatha yoga
- Site Navigation
- Differences in Brain Structure and Function Among Yoga Practitioners and Controls
Human Body and Yoga Ravi Subramaniyam
More troubling reports followed. In a prominent Oxford neurophysiologist, W. Ritchie Russell, published an article in The British Medical Journal arguing that, while rare, some yoga postures threatened to cause strokes even in relatively young, healthy people. Russell found that brain injuries arose not only from direct trauma to the head but also from quick movements or excessive extensions of the neck, such as occur in whiplash — or certain yoga poses. Normally, the neck can stretch backward 75 degrees, forward 40 degrees and sideways 45 degrees, and it can rotate on its axis about 50 degrees.
Yoga practitioners typically move the vertebrae much farther. An intermediate student can easily turn his or her neck 90 degrees — nearly twice the normal rotation. Hyperflexion of the neck was encouraged by experienced practitioners. Extreme motions of the head and neck, Russell warned, could wound the vertebral arteries, producing clots, swelling and constriction, and eventually wreak havoc in the brain. The basilar artery, which arises from the union of the two vertebral arteries and forms a wide conduit at the base of the brain, was of particular concern.
It feeds such structures as the pons which plays a role in respiration , the cerebellum which coordinates the muscles , the occipital lobe of the outer brain which turns eye impulses into images and the thalamus which relays sensory messages to the outer brain. Reductions in blood flow to the basilar artery are known to produce a variety of strokes. The majority of patients suffering such a stroke do recover most functions. But in some cases headaches, imbalance, dizziness and difficulty in making fine movements persist for years.
Russell also worried that when strokes hit yoga practitioners, doctors might fail to trace their cause. A healthy woman of 28 suffered a stroke while doing a yoga position known as the wheel or upward bow, in which the practitioner lies on her back, then lifts her body into a semicircular arc, balancing on hands and feet. An intermediate stage often involves raising the trunk and resting the crown of the head on the floor. The woman was rushed to the hospital. She had no sensation on the right side of her body; her left arm and leg responded poorly to her commands.
Her eyes kept glancing involuntarily to the left. Nagler reported that the woman also had a tendency to fall to the left. View all New York Times newsletters. Given the lack of advanced imaging technologies at the time, an exploratory operation was conducted to get a clearer sense of her injuries. The surgeons who opened her skull found that the left hemisphere of her cerebellum suffered a major failure of blood supply that resulted in much dead tissue and that the site was seeped in secondary hemorrhages.
The patient began an intensive program of rehabilitation. A few years later, a year-old man was rushed to Northwestern Memorial Hospital, in Chicago, complaining of blurred vision, difficulty swallowing and controlling the left side of his body. Steven H. Hanus, a medical student at the time, became interested in the case and worked with the chairman of the neurology department to determine the cause he later published the results with several colleagues.
The patient had been in excellent health, practicing yoga every morning for a year and a half. His routine included spinal twists in which he rotated his head far to the left and far to the right. Two months after his attack, and after much physical therapy, the man was able to walk with a cane. These cases may seem exceedingly rare, but surveys by the Consumer Product Safety Commission showed that the number of emergency-room admissions related to yoga, after years of slow increases, was rising quickly. They went from 13 in to 20 in Then they more than doubled to 46 in These surveys rely on sampling rather than exhaustive reporting — they reveal trends rather than totals — but the spike was nonetheless statistically significant.
Only a fraction of the injured visit hospital emergency rooms. Many of those suffering from less serious yoga injuries go to family doctors, chiropractors and various kinds of therapists. Around this time, stories of yoga-induced injuries began to appear in the media. The Times reported that health professionals found that the penetrating heat of Bikram yoga, for example, could raise the risk of overstretching, muscle damage and torn cartilage.
One specialist noted that ligaments — the tough bands of fiber that connect bones or cartilage at a joint — failed to regain their shape once stretched out, raising the risk of strains, sprains and dislocations. The other main sites were, in declining order of prevalence: the shoulder , the knee and the neck Then came stroke.
- Site Search Navigation!
- Au secours pardon (Littérature Française) (French Edition).
- Gentle Dog Training: Understand your dog and be understood by him?
- the plane crash (colman famley vampires Book 91)!
For example, you might choose to focus on your shoulders for three days this week. You can choose poses that will stretch the shoulders, like Down Dog and Gomukhasana Eagle Pose , and follow them with poses that will strengthen the shoulders, like Chaturanga Dandasana and Headstand. On the other days of the week, go back to your basic well-rounded practice. In the next week, you can shift your focus to another part of the body.
If you choose this pattern of sequencing poses, be sure to warm up first with a few standing poses and end with a relaxation pose. A somewhat similar and traditional approach to sequencing is to follow some poses with their opposite movement. In all my years of teaching, I have never heard students request backbends after forward bends, only the other way around.
With only a few limited exceptions, I prefer not to practice or teach using this approach; instead, I like to examine what I am doing in my backbend that makes me feel as though I need to immediately practice a forward bend. Such an urge makes me suspicious that I am compressing my spine unevenly in the backbend. Rather than jumping to practice a forward bend to undo the side effects of an uneven backbend, I attempt to discover exactly where and how I am compressing my back and to relieve that compression.
I do, however, make an exception when I am teaching beginning students. Sometimes after backbends I will give beginners a little bit of a forward stretch, such as Downward-Facing Dog. However, the poses I most like to do and teach following backbends are twists.
I would suggest you follow a deep backbend practice with Bharadvajasana Bharadvaja's Twist , as it is the twist that most resembles a backbend and thus is the least likely to strain your lower back. Most students seem to find that a lesser backbend is a relief, and it also does not strain the structures of the back as moving from an extreme backbend into a forward-bending movement can do. A couple of simpler backbends after a deep backbend practice feel great.
After several Urdhva Dhanurasanas, I sometimes have students just lie flat on the floor on their backs, with legs straight, and their arms over their heads and resting on the floor.
- How Yoga Can Wreck Your Body - The New York Times?
- Building A House of Prayer!
- La historia secreta de Madrid y sus edificios (Spanish Edition).
- CAMILO CIENFUEGOS.
- How to Raise Your Boy in a Dying World.
- Bringing Your Practice Home.
This position is still an extension or backbending movement for the spine, but it is also, of course, less of a backbend than the previous pose. From this pose, you can easily and comfortably do a supine twist or another supine pose like Supta Padangusthasana Reclining Hand-to-Big-Toe Pose. Always remember to pay attention to the effects of a pose before you choose the next pose.
If you choose a counterpose, be careful not to move to the most extreme opposite movement right away. Instead, proceed gradually toward that movement, using several intermediate movements to get there. Almost everyone who practices yoga will tell you that their "energy" feels different after they've practiced. This is no doubt one of the main reasons why we practice: to change our experience of how energy moves in the body. We want more energy; smoother, more even energy; or energy that is quieter and less agitated. Another way to think of sequencing has to do with consciously manipulating two of the main energies in the body, prana and apana.
In the ancient teachings of India, these two energies are considered extremely significant in the overall health and spiritual evolution of the practitioner. Prana is believed to exist above the diaphragm and to have a tendency to move upward; it is "masculine energy" and controls the heart and the respiration. Apana, it is said, exists below the diaphragm and has a tendency to move downward; it is "feminine energy" and controls the organs of the abdomen, pelvis, and legs. One way to organize your home practice on any given day is first to ascertain which energy you want to increase and then to practice the appropriate poses to accomplish this.
For example, inversions increase apana. Standing poses stimulate prana; forward bends quiet apana and prana, as do supine poses. If you are feeling scattered and fatigued, you may want to practice to increase apana; if you are dull and unenthusiastic, you may want to practice to increase prana. This can be a rewarding way to practice, but it does first take a little study to understand how different poses affect prana and apana.
If you are interested in working with these energies, I suggest you consult a yoga teacher trained in this knowledge. You can also consult written sources for this information.
No matter what approach or approaches you use in constructing your home practice sessions, keep in mind that the point of practice is not just simply to become more adept at the poses or to improve your health. These are worthy goals, but even more importantly, your home practice can ignite awareness about how you respond to difficulty and ease, to consistency and change, to the way you fall into the universal human strategies of avoiding the difficult whether for you this means Savasana or challenging backbends and clinging to the familiar and comfortable whether that means calming, inward-looking asanas or difficult poses in which your ego is happy to show off.
If your home practice draws you deeper into such awareness, it will achieve its most important purpose—and it will also create a momentum of consistency and a sense of accomplishment, pleasure, and well-being. Judith Hanson Lasater , Ph. She has written consistently for Yoga Journal since its inception in Poses by Anatomy.
Poses by Level. The Yoga for You. Types of Poses. Yoga Sequences. Yoga by Benefit. Yoga for Beginners. Intermediate Yoga. Advanced Yoga.
- Site Navigation;
- Io sono febbraio (Special books) (Italian Edition)!
- Effects of Yoga on Mental and Physical Health: A Short Summary of Reviews.
- Últimas sesiones con Marilyn (Spanish Edition)?
Yoga History of Yoga. Types of Yoga. Yoga Basics. Yoga FAQs. Benefits of Meditation. Guided Meditation. How to Meditate.
Differences in Brain Structure and Function Among Yoga Practitioners and Controls
Science of Meditation. Yoga Trends. Yoga for Athletes. WordPress Shortcode. Published in: Education.
Full Name Comment goes here. Are you sure you want to Yes No. No Downloads. Views Total views. Actions Shares. Embeds 0 No embeds. No notes for slide. Human Body and Yoga Ravi Subramaniyam 1. The answer will be different according to which tradition you consult. As per Ayurveda — Human Body is made up of systems. It is conceptualized as being composed of 5 Mahabhutas constituent parts — Agni fire , prithvi earth , jala water , vaayu air , aakash space. According to Ayurvedic theory, health can be improved by attending to imbalances between these principles in a body.
To understand the Body, we need the help of two terms: 1. Physiology is a branch of biology Deals with the normal functions of the body, mechanisms of the human body that makes it a living being. Cells Tissues Organs Organ Systems 9. Functions of Cell: Cell is the basic smallest functioning independent structure of the living beings. Taking in Oxygen to break down carbohydrates, fats and proteins to release energy. Heat and energy is produced in the process.
They deliver the end products of their chemical reactions into the surrounding fluid. Cells need continuous supply of Oxygen, glucose ,ions, amino acids and fat for continuing their functioning. The cells are continuously regenerated and replaced in most of the organs. Human body has over 10 trillion cells.
Metabolism: It is the constant Bio-chemical reactionary process going on at every cell level. Is a combination of 2 processes. These processes are important to maintain life. Catabolism: Destruction. This energy provides fuel for anabolism, heats body, enables muscles to contract and body to move. Helps in growth of new cells, tissue maintenance, storage of energy for future use.
Cells Tissues Organs Organ Systems The main controller of our body is the Mind. Though brain is responsible for its functioning, mind is more complex than any structure of the body. Mind is not an organ and is not a separate entity. It is considered as Mind-Body Complex. Mind