Forget Six-Pack Abs...

Article c/o yogajournal.com

...What It Really Means to Have Strong Abdominals

                                                                                                                                           self.com

Reconsider how you define healthy abdominal muscles. Think strong, not hard.

Have you ever stood at the mirror, sucked in your stomach and thought, “I wish I could look like this all the time?” If you grew up in the United States, your answer is probably yes. Madison Avenue has sold us the notion that taut abdominals are the quintessence of health and beauty. Rock-hard bellies are used to promote everything from underwear to cereal.

But if you yearn for the rippled look of “six-pack” abs, consider what you may sacrifice to obtain it: That look might cost you flexibility and freedom of movement. Overdoing abs exercises can lead to a flattening of the lumbar curve, creating a weakened spinal structure. “We’re even beginning to see hunchback conditions because of excessive abdominal crunches,” claims biomechanics and kinesiology specialist Michael Yessis, Ph.D., author of Kinesiology of Exercise.

Society’s obsession with flat tummies has psychological consequences too. “We want to control our feelings, so we make our bellies hard, trying to ‘keep it together,’” says yoga teacher and physical therapist Judith Lasater, Ph.D., author of Living Your Yoga. Soft bellies appear vulnerable; abs of steel don’t. But the traditional military posture of attention—chest out, belly ina—not only makes soldiers appear hard and invulnerable, it also foils their independence. Soldiers are supposed to follow orders, not intuition. Yogis may be warriors too, but we want to shed armoring. Tension interferes when trying to access the deeper wisdom that rests in the belly. As yogis, we require a supple abdomen in which we can sense the stillness of our being.

The Benefits of Healthy Abdominals

“We’re a culture afraid of the belly,” laments Lasater. In our societal obsession with abdominal minimalism, we often lose sight of the true nature of this crucial part of the body. Abdominal muscles assist breathing, align the pelvis, flex and rotate the trunk, keep the torso erect, support the lumbar spine, and hold in the organs of digestion. The crunch-obsessed fitness buffs are partly right, though: Strong, toned muscles at the core of your body support good health. But that does not mean we should cultivate a permanent navel cramp, hold our breath, and stand like soldiers on parade. Take a look at the Buddha, perhaps the world’s best-known yogi. In many paintings and statues, he doesn’t have “abs of steel.” Yogis know that chronically tight abdominals aren’t any healthier than chronically tight hamstrings or back muscles. Yoga can help you develop the perfect balance of abdominal strength, suppleness, relaxation, and awareness.

Of course, different yoga teachers approach abdominal exercise in different ways. Some approach the belly primarily through sensory exploration, helping us become sensitive to all the layers of muscles and organs; others use standing poses, employing the arms and legs to strengthen the abdominals in their function as stabilizers for the limbs. Still others stress motion, emphasizing that the value of abdominal muscles lies in their ability to move and change shape. But all of the yoga teachers I spoke to highlighted four themes in common: (1) Movement springs from the body’s center of gravity just below the navel; (2) asanas train this core to act as a stable base and fluid source of movement; (3) abdominal muscles should be toned but not tense; (4) the first step in abdominal fitness requires learning to sense this core, becoming familiar with it from the inside.

The Anatomy of Your Core

A basic knowledge of the belly’s anatomy can help us approach core work with a more accurate mental map. So let’s peel away the layers and see what lies under the skin.

Abdominal skin differs from much of the skin covering the rest of the body. It has a subcutaneous tissue that loves to hoard fat. It can store up to several inches. Those fat-free torsos you see in advertisements are possible for less than 10 percent of the population. You have to have really thin skin to show muscle, explains Richard Cotton, spokesperson for the American Council on Exercise, and this takes more than diligent exercise; it takes the right genetics.

You have to be young too. Once fat cells accumulate around your torso, they don’t disappear. You can starve them; they’ll shrink. But they will always be there, endeavoring to fill up. Too much belly fat—we all know—is unhealthy. But working too hard to eliminate fat can also cause serious problems. Women can suffer estrogen depletion, bone weakness, and fractures. “A few millimeters of fat over those muscles don’t matter,” Cotton says. Most adults, including distance runners and people of optimal health, carry a slight spare tire around their middles.

Instead of obsessing about fat, we’d do better to focus deeper. Right under the skin, a sturdy wall of four paired muscles stretches over our internal organs. On the surface, the straplike rectus abdominus extends along the front, from pubic bone to sternum. On either side, a thin but powerful muscle, called the external oblique, courses diagonally from the ribs to the rectus, forming a “V” when viewed from the front. Running perpendicular to the external obliques, the internal obliques lie just below. These two pairs of muscles work in concert, rotating the trunk and flexing it diagonally. The innermost layer of abdominal muscle, the transversus, runs horizontally, wrapping the torso like a corset. You flex this muscle to pull in your belly. The sinewy, three-ply sheath formed by the transversus and the obliques provides a strong, expandable support; it protects the viscera and provides compression that aids elimination and a housing flexible enough for diaphragmatic breathing.

You can exercise all of these muscles with yoga. For example, when you raise your legs and torso in Navasana, you’re contracting the rectus abdominus, drawing your sternum toward the pubic bone. Holding postures like Navasana helps invigorate this muscle isometrically, toning your abdomen without compromising flexibility. You engage the upper portion of the rectus when you flex your torso forward while keeping your legs stable, as in Paschimottanasana (Seated Forward Bend).

Conversely, you engage the lower portion of this muscle by raising your legs while maintaining a stable torso, as in Urdhva Prasarita Padasana. To keep the rectus not just strong but flexible as well, it’s important to combine contraction exercises with complementary stretching postures like Setu Bandha Sarvangasana (Bridge Pose) or Urdhva Dhanurasana (Upward Bow Pose). A strong, responsive rectus will protect your lower back and allow you to sit up with ease. But don’t overdo it. Overworking this muscle can not only compromise your backbends, it can actually bunch up your torso and flatten the natural curve of your lumbar spine.

Rotational exercises like Jathara Parivartanasana (Revolved Abdomen Pose) engage the internal and external obliques, key muscles for developing a firm abdominal wall. These muscles also stabilize the spine while rotating the trunk and pelvis. For example, when you kick a ball, the obliques rotate your pelvis. When you throw a ball, the obliques pull your shoulder around. In asana practice you can exercise the obliques by either holding the shoulders steady while rotating the trunk, as in Jathara Parivartanasana, or rotating the shoulders while keeping the legs steady, as in Parivrtta Trikonasana (Revolved Triangle Pose). These muscles also stabilize your vertebrae to maintain spinal alignment when you lift a heavy weight. When toned well, the diagonal muscle fibers of the internal and external obliques form a powerful, interlacing network that draws in the abdomen. As you engage the obliques in asana practice, imagine yourself cinching up the strings of a corset, drawing from the sides to flatten the front.

The transversus abdominus also plays an important role in maintaining a toned abdominal wall. You engage this muscle when coughing, sneezing, or exhaling forcibly. Unlike the other three abdominal muscles, the transversus doesn’t move your spine. Perhaps the most effective means of exercising it entails working with the breath. Pranayama practices involving forceful exhalations, like Kapalabhati and Bhastrika (called by a variety of English names, including Breath of Fire, Skull Shining, and Bellows Breath) provide an excellent workout for the deep transversus.

To feel this muscle contract, stand with your feet shoulder-width apart, bend your knees slightly, and place your fingers on your sides, just below the rib cage. Now cough and feel the muscles under your fingers contracting forcefully. To contract this muscle even further, try this: Rest your hands on your thighs. Take a full breath, then exhale completely while contracting your abdomen to expel the last bit of air from your lungs. Then, without drawing in any new air, begin counting aloud: One, two…etc. You will experience your transversus cinching around your waist tightly, like a belt. Before the lack of oxygen becomes uncomfortable, relax your abdominals and allow the air to draw in slowly. This important classic yoga exercise is called Uddiyana Bandha (Upward Abdominal Lock). As you begin to grasp it, you can try further traditional exercises like Agni Sara Dhauti (Cleansing through Fire) and Nauli (Abdominal Churning), which are used to massage the abdominal organs.

Breath and Your Abdominals

People who work with the breath—singers and woodwind musicians, for instance—know it’s connected to the belly. Your diaphragm lies at the base of your lungs, directly over your liver and stomach. When your diaphragm contracts, it moves these organs out of its way, pushing your belly out slightly. If you breathe primarily by using the muscles of your rib cage, without taking advantage of the diaphragm’s power, you’re limiting your breath to accessory muscle groups too weak and inefficient to fill your lungs completely. But if your abdominal muscles don’t release, your diaphragm can’t descend fully. That’s why yogis balance abdominal strength with flexibility.

Keep in mind that deep, diaphragmatic breathing does not entail pushing your belly out deliberately. Full belly breathing just requires a naturally alternating engagement and release. To assure deep diaphragmatic breathing, first engage the abdomen in a complete exhalation, then allow your lungs to fill up naturally, relaxing the abdomen but not pushing it outward.

This fluid interplay of abdominal muscles and lungs provides an excellent focus for a meditation that you can use to complete your abdominal work. Lying on your back in Savasana (Corpse Pose), breathe slowly and deliberately, sensing the strength of your inner core as your obliques and deep transversus muscles compress to expel the air from your lungs completely. Then enjoy the flow of oxygen that fills your chest as these muscles release, creating space for prana to stream into your heart like water flowing into a basin. After a few minutes, allow your breath to resume its natural pattern. Observe it without criticism or effort. Imagine your abdominal cavity as the fluid container of your deepest wisdom and feel the energy at your navel radiating throughout your body.

The Sacred Importance of Your Core

Our center of gravity lies just below the navel, a spot many yoga teachers call the “power center.” The source of our vitality, the abdomen is a sacred space in our bodies, so we would do well to shift from criticizing how it looks to respecting how it feels. Ana Forrest, owner and primary teacher at Forrest Yoga Circle in Los Angeles, says she’s observed that as people begin to sense and move from their lower torso, over time they experience a surge in creativity and sexuality.

Throughout the world’s healing and mystical traditions, the belly is seen as an important center of energy and consciousness. Tantra yoga sometimes represents the navel as the home of rajas, or solar energy. In Tantric practice, the yogi stirs up rajas in the belly by using the breath, helping to create a divine body endowed with paranormal powers. You’ve probably noticed that many of India’s great spiritual adepts sport prodigious bellies. These tremendous tummies are thought to be full of prana. Hence, Indian artists often depict their deities with a paunch.

In China, the gentle art of tai chi emphasizes the lower abdomen as a reservoir for energy. Tai chi teacher Kenneth Cohen, author of The Way of Qigong, explains that it’s possible to strengthen the abdominals by learning how to compact qi (prana) into the belly. “From the Chinese viewpoint, the belly is considered the dan tian or ‘field of the elixir,’ where you plant the seeds of long life and wisdom,” Cohen explains.

If you’re skeptical of all this esoteric anatomy, consider the work of Michael Gershon, M.D. “You have more nerve cells in the gut than you do in the combined remainder of the peripheral nervous system,” Gershon claims. Gershon, who chairs the department of anatomy and cell biology at Columbia University’s College of Physicians and Surgeons at Columbia Presbyterian Medical Center, says he’s quite sure that our thoughts and emotions are influenced by the gut.

Gershon came to this unorthodox conclusion through meticulous research on serotonin, an important brain chemical that also functions in the bowel. Operating independently from the brain, a huge nervous system that Gershon has dubbed the “second brain” works silently in the abdomen. Gershon explains that this gut brain, properly known as the enteric nervous system, doesn’t “think” in the cognitive sense—but it constantly affects our thinking. “If there isn’t smoothness and bliss going up to the brain in the head from the one in the gut, the brain in the head can’t function,” Gershon says.
So the next time you’re critically eyeing your stomach, you might consider instead saying a reverent Namaste to your power center and home of your gut instincts. And you can also help cultivate the belly bliss Gershon recommends by employing an integrated approach to abdominal work, combining somatic and energetic awareness with asana and pranayama.

Find more great articles at www.transcendct.com

A 5-Minute Meditation for the Anxious Mind

       

Welcome to your Buddha Buddy five-minute guided meditation. During this practice, we will focus on your body and breathing awareness, in an attempt to soothe the mind. Find a comfortable seated position somewhere in nature. Now close your eyes and take a deep breath. Picture your front door. Did you lock it when you left? Even if you did . . . well, we can’t guarantee anything.

• As you let your breathing settle into a steady pattern—eyes closed, arms at rest, palms face up—ask yourself, is that a pain in your forearm? You haven’t even done anything yet today. How can your forearm hurt, when there are hardly any muscles in there? Resist the urge to poke it. If you poke it, the pain won’t go away, and it might even get a little worse. Yes, it does feel worse. Do blood clots cause pain?

• Take a deep breath in through your nose, and let it out—slowly, very slowly—through your mouth. Draw another breath in, and feel your belly fill with air. Your pants are awfully tight. You haven’t been to the gym in several days. Has it been two weeks already? It seems like you’ve been extra bloated after your last three Seamless orders from the Thai place downstairs. Food poisoning can cause bloat, can’t it? On your next inhale, fill your belly just a little bit less. Stop at, like, eighty per cent full. Maybe not just when you’re breathing, but when you’re eating, too. Just a thought. Now let it go.

• Breathe in, to the count of five, and slowly exhale. Again, in through the nose, out through the mouth. Feel the air on your skin—it’s a little cold, actually. You probably shouldn’t sit here for too long. Winter is coming and you never got that hole in the sole of your boot fixed. You could buy new boots, but there are, like, a million pairs to sort through online. You could go to a store, but if you go to a store you’ll feel pressured to buy something—it’s how you ended up with these cheap boots in the first place. It shouldn’t be this cold yet. Extreme weather. Global warming. The Earth is dying, but you woke up this morning at 11 A.M. and ate a bowl of cereal.

• Clear your mind—sometimes it helps to focus on a peaceful image from your past. You loved the beach as a child. You’d play and play until your face was sunburned lobster red. Your mother always tried to put sunscreen on you, and you wouldn’t let her. Hence all the wrinkles you’ve been noticing lately. It doesn’t help that you always make that face when you’re reading something on your computer—or that you’re always reading something on your computer. You’ve never been checked for skin cancer. Why? You have a lot of freckles, and surely a worrying mole somewhere. Are doctors supposed to just notice, or are you supposed to notice and point them out?

• As you continue to breathe in and out—not that fast; that’s hyperventilation—draw your focus away from the outside world and into yourself. Now sense that someone just sat down next to you. Does this person think that you’re weird, sitting on this bench with your legs crossed and eyes closed? Do not peek. It’s a man. He wasn’t looking at you before, but he is now.

• As we hastily reach the end of the meditation, start to bring life back into your limbs. Move your fingers—but not too much; don’t attract the man’s attention—and wiggle your toes. Your foot is asleep. Now that you’ve centered your being and calmed your breath, you’re ready to begin your day. Actually, your whole leg is asleep. You really can’t get up. You can’t even do nothing right.

Article c/o Casey Johnston for The New Yorker

Find more great articles like this at:

www.transcendct.com

Is Yoga Enough to Keep You Fit?

Article c/o yogajournal.com

Is Yoga Enough to Keep You Fit?

We sent three yogis to the lab to test the theory that yoga is all you need for optimal fitness.

When it came to the fitness benefits, yoga can or can’t provide, yoga teacher John Schumacher had heard it all. A student of B. K. S. Iyengar for 20 years and founder of the Unity Woods studios in the Washington, D.C. area, Schumacher was convinced yoga provides a complete fitness regime. But many people, even some of his own students, disagreed. Yoga might be good for flexibility or relaxation, they’d say, but to be truly fit, you had to combine it with an activity like running or weight lifting. Schumacher just didn’t buy it.

He knew three decades of yoga practice—and only yoga practice—had kept him fit. He didn’t need to power walk. He didn’t need to lift weights. His fitness formula consisted of daily asanas (poses) and pranayama (breathwork). That’s all he needed.

Four years ago at age 52, Schumacher decided to prove his point. He signed up for physiological testing at a lab in Gaithersburg, Maryland. As he expected, Schumacher tested near the top of his age group for a variety of fitness tests, including maximum heart and exercise recovery rates. His doctor told him that he was in excellent physical condition and estimated that Schumacher had less than a one percent chance of suffering a cardiac event. “I’ve always maintained that yoga provides more than adequate cardiovascular benefits,” says Schumacher. “Now I have the evidence that regular yoga practice at a certain level of intensity will provide you with what you need.”

Evidence of yoga’s ability to bolster fitness, however, goes well beyond Schumacher’s personal experience. Yoga Journal’s testing of three yogis also yielded impressive results. Even physiologists who don’t do yoga now agree that the practice provides benefits well beyond flexibility and relaxation. Recent research—though preliminary—shows that yoga may also improve strength, aerobic capacity, and lung function.

If you practice yoga, you already knew that. But if, like Schumacher, you’ve been told by friends, family, doctors, or even other yoga students that you need to add some power walking for your heart or strength training for your muscles, here’s evidence that yoga is all you need for a fit mind and body.

What Is Fitness?

Before you can prove yoga keeps you fit, you must first define what “fitness” actually means. This isn’t a simple task. Ask eight different physiologists, and you’ll hear eight different definitions, says Dave Costill, Ph.D., one of the first U. S. researchers to rigorously test the health and fitness benefits of exercise.

Now professor emeritus of exercise science at Ball State University in Muncie, Indiana, Costill defines fitness simply as the ability to live your life without feeling fatigued. “For normal daily living you don’t need the strength of a football player or the endurance of a marathon runner, but you’ve got to be able to perform your normal activities and still have a reserve,” says Costill.

The American College of Sports Medicine (ACSM), the largest exercise science association in the world, defines fitness as both related to your ability to maintain physical activity and related to your health (for example, people who become more fit reduce their risk for heart disease). According to ACSM, four types of fitness help to bolster health:

1. Cardiorespiratory fitness

This refers to the fitness of your heart, lungs, and blood vessels. The better your cardiorespiratory fitness, the better your stamina, the lower your risk for a host of diseases like heart disease, diabetes, and cancer.
Your ability to move without feeling winded or fatigued is measured by your VO2max (maximal oxygen uptake), a technical term that indicates how efficiently oxygen enters your lungs, moves into your bloodstream, and is used by your muscles. The more fit you become, the more efficiently your body transports and uses oxygen, improving your overall VO2max.

To test VO2max, physiologists ask you to cycle or walk or run on a treadmill with a tube-like mask over your mouth. The mask gathers the carbon dioxide and oxygen you exhale, and the ratio between the two gasses helps to indicate how efficiently your muscles use oxygen.

There are other tests that measure additional aspects of cardiorespiratory fitness, including a lung function test, in which you take a deep breath and then blow into a tube to measure your lung capacity, and heart rate tests, taken both at rest and during exercise. Since equally fit people can vary as much as 20 percent in heart rate, this measure best indicates your own progress: If you become more fit, your heart rate generally drops.

2. Muscular fitness

This refers both to muscle strength (how heavy an object you can lift) and muscle endurance (how long you can lift it). Without exercise, all of us lose muscle mass as we age, which can eventually result in weakness and loss of balance and coordination. Because muscle is such active tissue, it also plays an important role in regulating your metabolism, with every pound of muscle burning about 35 to 50 calories a day.

In a lab, researchers test your muscle strength and endurance on specialized equipment that looks like an exercise machine at a gym but contains sensors that read how much force your muscles generate as they contract.

3. Flexibility

As most people age, their muscles shorten and their tendons, the tissue that connects muscles to bones, become stiffer. This reduces the range of motion, preventing optimum movement of your knees, shoulders, elbows, spine, and other joints. Loss of flexibility may also be associated with an increased risk of pain and injury. Tight hamstrings, for example, pull down on your pelvis, putting pressure on your lower back. In general, tight muscles increase the likelihood you’ll suddenly move past your safe range of motion and damage ligaments, tendons, and the muscles themselves.

4. Body composition

Your body composition refers to the percentage of your body made up of fat instead of muscles, bones, organs, and other nonfat tissues. Though the use of body composition as a fitness and health indicator has come under fire in recent years by those who argue that it’s possible to be both fat and fit, the ACSM and many physiologists continue to assert that too much fat and too little muscle raises your risk for disease and makes movement less efficient.

Physiologists can measure body composition in several ways. The simplest method uses a pair of calipers to pinch the skin and underlying fat at various spots on the body. This method works best for athletes and others with little visible body fat. For those with more body fat, a more accurate method is hydrostatic weighing—being weighed while submerged in water and comparing the result to your out-of-water weight. Because fat floats, the greater the difference between your submerged and dry weights, the higher your body fat percentage.

Experts have long recommended that we do at least three different types of activity to achieve optimum cardiorespiratory and muscular fitness, flexibility, and body composition. For example, the ACSM recommends building cardiorespiratory fitness by exercising at an intensity that raises your heart rate to at least 55 percent of your maximum heart rate (the highest rate you can maintain during all-out effort, generally estimated as 220 minus your age); muscular fitness by targeting each major muscle group with eight to 12 repetitions of weight-bearing exercise; and flexibility by stretching.

No one argues against yoga’s ability to satisfy the flexibility requirement. But until recently, few scientists had considered whether yoga could improve other aspects of fitness. Now that’s starting to change.

Putting Yoga Fitness to the Test

In one of the first studies done in the United States that examines the relationship between yoga and fitness, researchers at the University of California at Davis recently tested the muscular strength and endurance, flexibility, cardiorespiratory fitness, body composition, and lung function of 10 college students before and after eight weeks of yoga training. Each week, the students attended four sessions that included 10 minutes of pranayama, 15 minutes of warm-up exercises, 50 minutes of asanas, and 10 minutes of meditation.

After eight weeks, the students’ muscular strength had increased by as much as 31 percent, muscular endurance by 57 percent, flexibility by as much as 188 percent, and VO2max by 7 percent—a very respectable increase, given the brevity of the experiment. Study coauthor Ezra A. Amsterdam, M.D., suspects that VO2max might have increased more had the study lasted longer than eight weeks. In fact, the ACSM recommends that exercise research last a minimum of 15 to 20 weeks, because it usually takes that long to see VO2max improvements.

“It was very surprising that we saw these changes in VO2max in such a short time,” says Amsterdam, professor of internal medicine (cardiology) and director of the coronary care unit at the U. C. Davis Medical Center in Sacramento. He is now considering a longer, larger study to authenticate these results.

A related study done at Ball State University offers further evidence for yoga’s fitness benefits. This research looked at how 15 weeks of twice-weekly yoga classes affected the lung capacity of 287 college students. All of the students involved, including athletes, asthmatics, and smokers, significantly improved lung capacity by the end of the semester.

“The athletes were the ones who were the most surprised, because they thought their athletic training in swimming or football or basketball had already boosted their lung capacity to the maximum,” says study author Dee Ann Birkel, an emeritus professor at Ball State’s School of Physical Education.

From the perspective of a Western scientist, the few additional studies that have looked at yoga and fitness all contain flaws in their research design—either too few subjects or inadequate control groups. One study, conducted in Secunderabad, India, compared a group of athletes taught pranayama to another group who were not. After two years, those who practiced pranayama showed a larger reduction of blood lactate (an indicator of fatigue) in response to exercise; in addition, they were more able than the control group to increase their exercise intensity as well as the efficiency of their oxygen consumption during exercise. Other smaller studies also done in India have found that yoga can increase exercise performance and raise anaerobic threshold. (Anaerobic threshold is the point at which your muscles cannot extract enough oxygen from your blood and therefore must switch from burning oxygen to burning sugar and creatine. Unlike oxygen, sugar and creatine are dirty fuel sources, creating lactic acid and other by-products that build up in the blood and make you hyperventilate, “feel the burn,” and lose muscle coordination.)

Although the research on yoga is only starting to build, a convincingly large amount of research has been done on tai chi, an Eastern martial art that involves a series of slow, graceful movements. Many studies have found that tai chi helps to improve balance, cardiorespiratory and cardiovascular fitness, ability to concentrate, immunity, flexibility, strength, and endurance of the knee extensor muscles.
Dina Amsterdam, a yoga instructor in San Francisco and graduate student at Stanford University, is one of many researchers conducting a three-year study that compares the psychological and physiological benefits of tai chi as to those of traditional forms of Western exercise such as aerobics. (The daughter of Ezra Amsterdam, Dina Amsterdam was the inspiration behind her father’s U. C. Davis study on yoga and fitness.)

“Though there haven’t been a lot of studies done on yoga that are considered valid, there are numerous studies done on tai chi, with the current Stanford study the largest to date,” she says. Because yoga shares many elements with tai chi but can also provide a more vigorous physical workout, Amsterdam expects future yoga studies to produce at least similarly encouraging results. But Amsterdam says she doesn’t need additional research to prove to her that yoga builds fitness. “I haven’t done anything but yoga and some hiking for 10 years,” she says. “When I came to yoga, I was 25 pounds overweight and suffering from a compulsive eating disorder. Yoga completely brought me back to physical and emotional health.”

Many yoga practitioners echo such thoughts. Jack England, an 81-year-old yoga and stretching instructor at the Club Med in Port Saint Lucie, Florida, says more than 30 years of yoga have kept him flexible, healthy, and strong. He’s the same weight and height as he was in high school, and his stellar health continues to amaze his doctor. He delights audiences at Club Med by practicing Shoulderstand and other poses while balancing on a float board in a water ski show. “I’m an inspiration to people of all ages,” he says. “I do things that 14-year-old girls can’t do.”

Stephanie Griffin, a 33-year-old director of business development for a pharmaceutical research company in San Francisco, discovered yoga after years of running marathons, spinning, and weight lifting. Before discovering yoga, she thought her intense exercise habits had turned her into a poster child for health and fitness. During the last four years, however, Griffin began doing more and more yoga and less and less running, weight lifting, and aerobicizing. As she dropped back on her hardcore fitness pursuits, she worried she might gain weight or lose her muscle tone or exercise capacity.
She didn’t. “I have maintained my fitness and even enhanced it through yoga,” says Griffin, who no longer has a gym membership. “And I like the way my body looks and feels now better than the way it did before.”

Why Yoga Works

Exactly how does yoga build fitness? The answer you get depends on whom you ask. Robert Holly, Ph.D., a senior lecturer in the Department of Exercise Biology at U. C. Davis and one of the researchers on the U. C. Davis study, says that muscles respond to stretching by becoming larger and capable of extracting and using more oxygen more quickly. In other words, side benefits of flexibility include increased muscle strength and endurance.

“My own belief is that the small but significant increase in maximal oxygen capacity was due to an increase in muscle endurance, which allowed the subjects to exercise longer, extract more oxygen, and reach an increased maximal oxygen uptake,” says Holly.

Then there’s the pranayama theory. Birkel suspects that yoga poses help increase lung capacity by improving the flexibility of the rib area, shoulders, and back, allowing the lungs to expand more fully. Breathwork further boosts lung capacity—and possibly also VO2max—by conditioning the diaphragm and helping to more fully oxygenate the blood.

Birkel, Dina Amsterdam, and others are also quick to point out that Suryanamaskar (Sun Salutations) and other continuously linked poses increase the heart rate, making yoga aerobically challenging. And many yoga poses—particularly standing poses, balancing poses, and inversions—build quite a bit of strength because they require sustained isometric contractions of many large and small muscles. Of course, holding the poses longer increases this training effect.

Finally, yoga tunes you into your body and helps you to better coordinate your actions. “When you bring your breath, your awareness, and your physical body into harmony, you allow your body to work at its maximum fitness capacity,” says Dina Amsterdam. “Yoga class is merely a laboratory for how to be in harmony with the body in every activity outside of yoga. This improved physical wellness and fluidity enhance not just the physical well-being but also permeate all levels of our being.”

Are You Fit?

Given all this evidence, can you now confidently tell your nonyogi friends they’re wrong when they insist that you should add other forms of exercise to your practice?

Maybe, maybe not. The answer depends largely on how much you dedicate yourself to yoga. Studies done on yoga have included more than an hour of practice two to four days a week. The yoga sessions included breathwork and meditation in addition to typical yoga poses. Finally, the asanas used in these studies included not just aerobically challenging sequences, like Sun Salutations, but also many strengthening poses, like Virabhadrasana (Warrior Pose), Vrksasana (Tree Pose), Trikonasana (Triangle Pose), Adho Mukha Svanasana (Downward-Facing Dog Pose), Navasana (Boat Pose), Sarvangasana (Shoulderstand), Setu Bandha Sarvangasana (Bridge Pose), and Plank.

So if you want to become and stay physically and mentally fit, make sure your yoga practice includes a balance of poses that build strength, stamina, and flexibility, along with breathwork and meditation to help develop body awareness. In particular, include a series of standing poses in your practice. As your practice expands, Schumacher suggests adding more challenging asanas such as balancing poses and inversions. “If you are just doing 15 minutes of gentle yoga stretches three to four times a week, you will also need to do some other form of exercise to stay fit,” Schumacher readily admits. “I often tell my beginning students that they will need to do something in addition to yoga for a while until they can practice more vigorously.”

Holly agrees. If you practice yoga for less than an hour twice a week, he suggests you either pair your practice with moderate intensity exercise like walking, or increase your yoga time or frequency. “But the best form of exercise is whatever you enjoy most and will continue to do on a regular, almost daily, basis,” he says. “Should you do more than yoga if you don’t enjoy other activities? No. Yoga has a lot of benefits, so do yoga regularly and enjoy it.”

Beyond fitness, yoga also offers many other gifts. It improves your health, reduces stress, improves sleep, and often acts like a powerful therapy to help heal relationships, improve your career, and boost your overall outlook on life.

All these positives are enough to keep former exercise junkie Stephanie Griffin hooked on yoga for life. Griffin had worried that, unlike her other fitness pursuits, yoga wouldn’t give her the emotional satisfaction of aiming for and meeting goals. Soon, however, she realized that yoga offered her a path to constant improvement. “One day it hit me: I realized that my goal was to be practicing yoga well into my 90s,” says Griffin. “For me, that is the new finish line. Practicing with that goal satisfies me more than any marathon.”

How Walking in Nature Changes the Brain

Article c/o nytimes.com

How Walking in Nature Changes the Brain

A walk in the park may soothe the mind and, in the process, change the workings of our brains in ways that improve our mental health, according to an interesting new study of the physical effects on the brain of visiting nature.

Most of us today live in cities and spend far less time outside in green, natural spaces than people did several generations ago.

City dwellers also have a higher risk for anxiety, depression and other mental illnesses than people living outside urban centers, studies show.

These developments seem to be linked to some extent, according to a growing body of research. Various studies have found that urban dwellers with little access to green spaces have a higher incidence of psychological problems than people living near parks and that city dwellers who visit natural environments have lower levels of stress hormones immediately afterward than people who have not recently been outside.

But just how a visit to a park or other green space might alter mood has been unclear. Does experiencing nature actually change our brains in some way that affects our emotional health?

That possibility intrigued Gregory Bratman, a graduate student at the Emmett Interdisciplinary Program in Environment and Resources at Stanford University, who has been studying the psychological effects of urban living. In an earlier study published last month, he and his colleagues found that volunteers who walked briefly through a lush, green portion of the Stanford campus were more attentive and happier afterward than volunteers who strolled for the same amount of time near heavy traffic.

But that study did not examine the neurological mechanisms that might underlie the effects of being outside in nature.

So for the new study, which was published last week in Proceedings of the National Academy of Sciences, Mr. Bratman and his collaborators decided to closely scrutinize what effect a walk might have on a person’s tendency to brood.

Brooding, which is known among cognitive scientists as morbid rumination, is a mental state familiar to most of us, in which we can’t seem to stop chewing over the ways in which things are wrong with ourselves and our lives. This broken-record fretting is not healthy or helpful. It can be a precursor to depression and is disproportionately common among city dwellers compared with people living outside urban areas, studies show.

Perhaps most interesting for the purposes of Mr. Bratman and his colleagues, however, such rumination also is strongly associated with increased activity in a portion of the brain known as the subgenual prefrontal cortex.

If the researchers could track activity in that part of the brain before and after people visited nature, Mr. Bratman realized, they would have a better idea about whether and to what extent nature changes people’s minds.

Mr. Bratman and his colleagues first gathered 38 healthy, adult city dwellers and asked them to complete a questionnaire to determine their normal level of morbid rumination.

The researchers also checked for brain activity in each volunteer’s subgenual prefrontal cortex, using scans that track blood flow through the brain. Greater blood flow to parts of the brain usually signals more activity in those areas.

Then the scientists randomly assigned half of the volunteers to walk for 90 minutes through a leafy, quiet, parklike portion of the Stanford campus or next to a loud, hectic, multi-lane highway in Palo Alto. The volunteers were not allowed to have companions or listen to music. They were allowed to walk at their own pace.

Immediately after completing their walks, the volunteers returned to the lab and repeated both the questionnaire and the brain scan.

As might have been expected, walking along the highway had not soothed people’s minds. Blood flow to their subgenual prefrontal cortex was still high and their broodiness scores were unchanged.

But the volunteers who had strolled along the quiet, tree-lined paths showed slight but meaningful improvements in their mental health, according to their scores on the questionnaire. They were not dwelling on the negative aspects of their lives as much as they had been before the walk.

They also had less blood flow to the subgenual prefrontal cortex. That portion of their brains were quieter.

These results “strongly suggest that getting out into natural environments” could be an easy and almost immediate way to improve moods for city dwellers, Mr. Bratman said.

But of course many questions remain, he said, including how much time in nature is sufficient or ideal for our mental health, as well as what aspects of the natural world are most soothing. Is it the greenery, quiet, sunniness, loamy smells, all of those, or something else that lifts our moods? Do we need to be walking or otherwise physically active outside to gain the fullest psychological benefits? Should we be alone or could companionship amplify mood enhancements?

“There’s a tremendous amount of study that still needs to be done,” Mr. Bratman said.

But in the meantime, he pointed out, there is little downside to strolling through the nearest park, and some chance that you might beneficially muffle, at least for awhile, your subgenual prefrontal cortex.

Find more great articles at: www.transcendct.com