Saturday, October 8, 2011

My Possessions

In his book The Feeling of What Happens neuroscientist Antonio Damasio makes the interesting point that each of us has one and only one body.  I believe that the only things I truly own are my physical body and my time.  I do not own another person (and Sadie Pearl the cat would be the first to tell you that I don’t own her either).  The books, clothes, and other stuff that I normally think of as belonging to me will be mine only while I am here to use them.  When I came into this world, small and naked, I had only my body and my time and those will be mine until I leave it.

Stretching

When I was in elementary school we lived next to a library and I would often go to look around at the books and pictures that were there.  One day I found a book with pictures of a thin, brown-skinned man bending and twisting his body in extraordinary ways, an exotic sight to my 1950’s-little-kid eyes.  My mother told me that that was yoga.

Fast forward forty years.  I am lying on my back in savasana (“Corpse Pose”) on the floor of a large high-ceilinged room in a commercial building in downtown Bloomington, Indiana.  Sunlight streams in on the worn and faded colors of Oriental rugs that carpet the floor.  A tape of Enya plays softly in the background.  I re-discovered yoga in my early forties as a respite from the rush and stress of a busy real estate career and for years I went to classes several times a week.  Some yoga practitioners believe that yoga is the only exercise you need.  For me, cardio and weight-lifting turned out to be essential so there was no more time for yoga classes

Breathing is one of the central concerns of hatha yoga, the inward, invigorating inhalation and the relaxing exhalation, which is often twice as long in breathing exercises.  When I was in my thirties I was always trying to do things more quickly, to make my body go as fast as my thoughts.  In my forties I discovered that relaxing, letting go, was the essential other side of the coin, to slow the thoughts down to the pace of the body. 

I don’t go to yoga classes but I’ve incorporated some good yoga habits into my life.  If I’m in heavy traffic I try to pay attention to my breathing and make the exhale twice as long as the inhale.  When I got frozen shoulder, yoga stretches helped bring it back to normal.  And, in the evenings after I’ve done a heavy workout, I stretch, usually the resistance stretching I learned from Anne Tierney and Steve Sierra, a system similar to yoga. 

Some recent studies seem to cast doubt on the benefits of stretching.  Athletes used to be told to stretch before and after exercise to improve performance and prevent injuries.  Acute stretching immediately before exercise actually diminishes performance in some tasks.  Some researchers also question whether stretching has any effect on exercise related injuries.

If exercise doesn’t improve performance or prevent injury why bother? Because exercise improves flexibility and helps you to relax.  When you do strenuous exercise you break the body down a little so it will build itself up stronger.  The rebuilding process comes when you rest.  When I’m trying to sleep I sometimes use a yoga technique:  I slow my mind down enough so I can feel the little pulses in the tips of my fingers and just pay attention to those…

Tuesday, October 4, 2011

Statistics and the Twenty Year Rule: Why the Old Standbys May Be Safer Than Newly Approved Drugs

For much of my adult life, twenty-five years, I had the same doctor. She was a fine internist who took wonderful care of me whenever there was a crisis but we had our differences. In 2000, when my cholesterol was high, she wanted me to take a statin. Instead, I opted for changes in diet and exercise. A couple of years later when a DEXA showed osteopenia, low bone density, she urged me to take a bisphosphonate. I said “No, thanks.” to that too and increased my intake of calcium and vitamin D.

As I told my doctor, my resistance to taking new medications has partly to do with my medical history. In the mid 1940’s when she was pregnant with me my mother took diethylstilbestrol (DES), which was thought at the time to prevent miscarriages. By the 1970’s DES was found to be associated with an increased risk of cancer in girls prenatally exposed to it. In 1978 after I had a complete hysterectomy my doctor at the time said, “Take estrogen or you will get osteoporosis.” So I took estrogen. In 2002 a large Women’s Health Initiative (WHI) study associated hormone replacement therapy with an increased risk of heart disease, stroke, and breast cancer. If I started taking statins in 2000 at the age of 54, I reasoned, new research in the 2020’s would show why that had been a bad idea. By then I would be in my 70’s and I would not be amused.

How can a person weigh and evaluate the benefits and risks associated with various options? An excellent  article in the September 24-25 Wall Street Journal addresses that very topic. In “Designing a Smarter Patient,” Drs. Jerome Groopman and Pamela Hartzband discuss ways to help a patient make wise decisions about whether or not to accept particular treatments. A patient is told that a particular statin will reduce her risk of a heart attack by 30%, which sounds impressive. Then she goes to a government-sponsored web site and calculates her risk of getting a heart attack, which turns out to be 1%. So taking the statin will lower her risk from 1% to .67%, not much of a benefit considering the monetary cost and possibility of side effects.

In my case, the Cleveland Clinic’s Stroke Risk Calculator indicates that my 10-year risk of a stroke is 3%. Based on the WHI study, my increased risk of a stroke because of taking estrogen is .00012 (12 in 10,000 additional strokes), increasing my overall risk to 3.0036. I’m going to keep taking the estrogen to protect my bones.

New medications come on the market constantly. A recent study showed that many Americans believe that drugs approved by the FDA are “extremely effective” and have no serious side effects.  In fact, FDA approval only means that the benefits outweigh the risks, based on the research that has been done up to that point. There may be products already on the market that are more effective and safer. The risks (and benefits) of the new drug may not show up for years until a larger population of patients has tried them.

Should I Be Taking This? 3

BONIVA can cause serious side effects including problems with the esophagus, low blood calcium, bone, joint or muscle pain, severe jaw bone problems, and unusual thigh bone fractures.

Before starting BONIVA, tell your doctor if you have problems with swallowing, stomach or digestive problems, have low blood calcium, plan to have dental surgery or teeth removed or have kidney problems

Stop taking BONIVA and tell your doctor right away if you have pain or trouble swallowing, chest pain, or severe or continuing heartburn, as these may be signs of serious upper digestive problems. Call your doctor immediately if jaw problems, hip, groin, or thigh pain develop, or if you have symptoms of low blood calcium such as spasms, twitching, cramps in your muscles, or numbness or tingling in your fingers, toes, or around your mouth.

BONIVA is a prescription medicine used to treat or prevent osteoporosis in women after menopause. BONIVA helps increase bone mass and helps reduce the chance of having a spinal fracture (break).

Saturday, October 1, 2011

Respect the Feet

Feet are the Rodney Dangerfield of the human anatomy; their health tends to be ignored until there’s a crisis, like diabetes or advanced arthritis. I was lucky enough to get started earlier in the cycle. I could never have reached my present level of fitness if I hadn’t had my feet fixed.

In 1994 I had started walking around the track at the Y and I noticed little pains on the sides of my feet. When Dr. Hoffman first looked at them he said, “These are pretty good feet but they’ll stay good longer if you get orthotics and wear them.” “That’s for me,” I said, and began a relationship that has been long, successful, and slightly weird. Casts were made of my feet and were sent away to the orthotics-works. A pair of plastic inserts came back and I started to wear them. Dr. Hoffman said, “If you feel any pain, come back.”

Things went along pretty well until about 2000 when I started exercising more and spending hours working in a darkroom with a cement floor. During this period I noticed a very painful spot at the back of my right hip. I went back to Dr. Hoffman and he adjusted my orthotics by filing down the plastic or gluing on little pieces of cork. He said, “If it’s not right, come back.” We repeated this process many, many times; the pain just wasn’t going away. I started experimenting myself, taping on little bits of cardboard to the orthotics to see what would help. Usually I ended up with cardboards taped to the orthotic on the right side rather than the left.

Finally, Dr. Hoffman identified the source of the problem: my right leg is about ¼” shorter than the left. When you’re young, you easily compensate for such minor asymmetries. As you get older, especially with the exercise I was doing, a little flaw can mean big trouble. Dr. Hoffman built up the orthotic on the right side and the pain went away.

In my post, "An Unfashionable Body", I talked about how I seem to have inherited my paternal grandmother's physique. In old age my grandmother had terrible trouble with her left knee and had to have cortisone shots to deal with the pain. I suspect this was because she had the same short right leg; the left knee got crunched together for all the decades of her life, including five pregnancies, and nobody ever spotted the real problem.

I still get pains in my feet sometimes. Oddly, they usually come not when I’m walking around but in the evening when I’m lying in bed. These days it’s likely to be a consistent dull ache in some small spot. When that happens I try taping cardboard pieces to the corresponding spot on the insert.  Sometimes the lumps of cardboard get pretty big. When I think I’ve got it right, or when the “edits” have gotten way too complicated, I take the orthotic in to Dr. Hoffman and he laughs. Then in three or four minutes he comes up with a rational solution, taking away the cardboards, filing, and gluing on cork. It’s a good thing he’s patient and has a sense of humor.

This experience has taught me that foot problems can cause knee, hip, and back pain. If that pain goes on for a long period it will damage or destroy the affected bones. I wonder how many knee and hip replacements could have been headed off if the underlying foot problems had been corrected in time.  Note to insurers, legislators, and anyone else wanting to cut health care costs: recommend that everyone over forty have their feet checked by a podiatrist at least once.

The pictures below show my orthotics, top and bottom. The right side has “edits” by Dr. Hoffman and by me. 



Thursday, September 29, 2011

An Honest Workout: Heart Rate Monitors

People in the statin ads often talk about how diet and exercise didn’t work for them.  I wonder whether these are the same people whose doctors are telling them that moderate exercise is enough and to “know your limits.”  Some doctors and even some trainers discourage older people from trying to do strenuous exercise, apparently motivated by fear of injury to the patient/ client or concern about liability for themselves. 

Moderate exercise never worked for me.  I spent years trying to improve my physical condition by brisk walking, swimming laps, or working out on an elliptical at a medium pace.  Nothing happened:  I didn’t lose weight or become stronger and my overall condition stayed about the same.  Eventually I concluded that these workouts were not hard enough to make a real difference.

How can you tell if you’re getting a good cardio workout?  You can’t unless you use a heart rate monitor.  If you work out on a machine that reads chest straps (and most of the newer ones do), youcan get by with just a chest strap.  If you don’t use a machine or you want more features you will need a watch to go with it.  Many of these are made by Polar Electro – USA.  I bought one on EBay about ten years ago and it still works fine.  Periodically I send it to the Polar Service Center for a new battery and they get it back to me right away.  My watch has some extra features like a log for keeping track of your workouts and a fitness test but I don’t use them much. 

The most commonly used formula for calculating maximum heart rate is to subtract your age from 220. When I first started doing serious exercise at age 54 I would go as fast as I could on the elliptical and my heart rate would never get much above 125 beats per minute or about 75% of my maximum heart rate of 166 bpm.  I think part of the problem was that at that point my muscles weren’t strong enough to do a harder workout.  After I started using a protein supplement and, later, proteolytic enzymes, the situation improved.  These days I do intervals alternating 4 minutes at 132 bpm with 3 minutes at 142 bpm, averaging around 137, just under 90% of my current maximum heart rate of 155.  On a day when I am tired or not feeling well I may not get much above 130; if I get down to 125 I will lose condition and start putting on weight

The thinking about exercise for older people may be starting to change.   The Personal section of the Wall Street Journal (6/28/2011) had an article about how some doctors are using intense interval training for patients recovering from a heart attack or cardiac surgery. 

Tuesday, September 27, 2011

Protein 1

Hamburgers, bacon and eggs, cold cuts, big juicy steaks, all are staples of the American diet.  People in the US are famous for consuming large portions of high protein food.  Perhaps this is why no doctor has ever asked me whether I was getting enough protein.  In junior high school gym class we were supposed to climb ropes.  I couldn’t do it.  I couldn’t do a single push-up either.  I tried to play tennis but the big, wooden rackets seemed too heavy.  Long fingernails were stylish in the 1950’s but mine always broke or peeled off in layers.  All of these were clues that I wasn’t getting enough protein but nobody paid much attention.

How much protein does an adult person need? Most sources I’ve looked at start at 40-50 grams per day.  Sometimes the recommendation is expressed as a ratio, .8 or .9 gram per kilo of body weight.  Men need more than women and people who work out regularly need more than sedentary types.  Protein deficiency can result in muscle weakness; if the body does not ingest enough protein it takes what it needs from the muscles.   A lack of protein can also lead to a weakened immune system.  Deficiency  can come about even when enough protein is being consumed if the body is not able to digest it properly.  (More on that in another post.)  Getting enough protein is essential for overall health but there is also some evidence that consuming more protein may reduce your risk of a heart attack, according to the web site of the Harvard School of Public Health.

When I was in my fifties I started really looking at the numbers on my annual blood work and noticing that the protein was low.  I thought about my current diet:  toast and fruit for breakfast, salad at lunch, meat and vegetables at dinner.  My rough estimate was that I was getting less than 30 grams per day, not nearly enough.  How to get more protein without eating more meat and adding too many calories and too much fat? A few years back I saw people on a TV fitness program drinking protein shakes.  These days I buy five-pound containers of chocolate whey protein at the gym.  (Soy protein is available too.) 

Chocolate Mint Protein Smoothie            makes 2 2-cup servings

¾ cup of low fat milk
2 tbsp. low fat yogurt
11/3 cups of ice cubes
2 scoops chocolate protein powder
2 small peppermint patties

Blend all ingredients until thick and creamy.

Fruit Protein Smoothie

Same as above but use vanilla protein powder, add two cups frozen fruit, ½ banana, and omit the peppermint patties.