Category Archives: Health & Fitness

Too much of a good thing–can you do too much exercise?

Given that most people aren’t active enough, the message “move more” seems like a good one. But it is possible to do too much. my Health & Fitness column in the Aiken Standard this week discusses the potential hazards of doing too much exercise as well as how to avoid this situation.

For most people, the biggest risk for doing too much comes when they begin an exercise program. Progressing too quickly to longer time and/or higher intensity exercise can lead to muscle soreness or injury. A common guideline is the 10% rule: don’t increase your time or intensity more than 10% at a time. Although increases of 10% may not always be practical—a 10% increase from a 30 minute jog is 33 minutes—the message to increase slowly is a good one. Incidentally, this New York Times article suggests that there isn’t any good evidence that following the 10% rule reduces injury risk. That said, going from a 30 minute run to 60 minutes is too much, too soon.

One way to get guidance on how to progress in an exercise program is to consult a fitness professional, like a personal trainer. Sadly, many people get injured, or at least have a bad exercise experience, because of an overly ambitious personal trainer. Make sure you find someone who has experience with novice exercisers to help reduce this risk.

Despite the potential hazards of doing too much exercise, most people should worry about not doing enough. So, get moving!

It’s not about the diet

Last week I wrote about some characteristics of a good weight loss diet and what to avoid if your goal is to lose weight and keep it off. At about that time, the Best Diets rankings were published in U.S. News and World Report.

Despite this focus on diets and what to eat to lose weight, the key to long-term weight management isn’t food—it’s your ability to make good decisions and change your behaviors to support your weight loss goal. Sure, what you eat is important, and you should find a diet that is low in calories and teach you how to eat a healthy diet in the long run. But to make that diet work you need to alter your eating and activity habits. This is the difficult part, especially after the diet or weight loss program “ends”. (As people who have lost weight and kept it off will tell you, the effort never really ends)

To illustrate the importance of behavior change in achieving lasting weight loss, here are two examples of real people (with fake names) and how they overcame a major obstacle by changing their habits:

Andrea was a single mom who worked full-time and took classes toward her college degree. As you can imagine, her days were full and, even though she knew exactly what she should eat, she ate most of her meals on the go, often when driving. This meant that she ate a lot of take-out and fast food, typically as several snacks throughout the day as opposed to normal meals. Andrea struggled to lose weight and was getting frustrated that even though she knew what she should be eating, her lifestyle made this all but impossible. Then she decided to start packing food for herself. She actually carried two bags—one with her books and the other neatly packed with healthy snacks. This way she could have appropriate food with her everywhere she went. A yogurt in the morning at work rather than donuts from the kitchen or fruit and cheese instead of fast food while driving to pick up her kids at school. Preparing a day’s worth of food took time, but making this change made all the difference for Andrea.

Ed travelled a lot for work, which meant he spent long days on the road and ate out for most meals. Sitting all day in meetings and eating at restaurants with business associates made it almost impossible for him to stick with his diet or exercise program. He did his best to order salads, skip desert, and look for the healthiest options on the menu. No surprise, he ended up eating far more calories than he should and didn’t lose much weight. But skipping these meals wasn’t an option. Ed decided that since he couldn’t control his diet as much as he would like, he would focus his efforts on exercise. He started staying at hotels with fitness centers and woke up early to exercise before work. If he finished early in the afternoon he would use that time to go for a walk or go to the gym again before dinner. This wasn’t easy, but it was worth it. The exercise helped with weight loss directly by burning calories and indirectly by giving Ed a sense of control over his weight loss which motivated him to be even more careful ordering meals.

What Andrea and  Ed have in common is that, even though they were following the same diet (a low-calorie diet with daily exercise), their success came more from how they changed their behavior to fit their lifestyle than from the details of the diet. And that is something that most diet books or programs don’t tell you. It is also why it takes most people several tries before they successfully lose weight and keep it off. Anyone can follow a diet for a few months, making short-term changes to accommodate a new eating and activity pattern. But it takes someone with real dedication to make the type of long-term behavior modifications that are required to keep weight off in the long run.

Fat but fit, Santa is ready to go!

He may not look it, but Santa probably hits the gym regularly to work on the strength, endurance, and flexibility he needs for his job. Since Santa tends to keep to himself, he hasn’t come to my lab for a fitness test. But I tried to make a good guess as to what he does in the “offseason” to stay in shape in my Health & Fitness column in the Aiken Standard.

It’s a good thing he keeps himself in shape, too. Since he is overweight, good fitness is essential for reducing his risk of, among other things, a heart attack or stroke. In fact, Santa is probably healthier than some people who have a “normal” weight, but don’t exercise.

He should watch his weight, though. An ABC News report suggests that Santa is getting fatter!

An unexpected consequence of childhood obesity

My Health & Fitness column in the Aiken Standard this week is about an unexpected consequence of childhood obesity. Much of the discussion of childhood — and adult — obesity is centered on the health effects. Since obesity is a leading cause of type 2 diabetes, high blood pressure, and heart disease, there are serious consequences of being overfat.

The problem is even more severe in young people. Because of childhood obesity, pediatricians are now treating kids in their early teens for type 2 diabetes. Adults who have type 2 diabetes tend to have heart attacks at a relatively young age and are likely to die early. Does this mean that teenagers who have type 2 diabetes will suffer heart attacks in their 20s and 30s? Many physicians and researchers think so, but the truth is that we just don’t know…yet.

Kids who are obese also tend to be less physically active than their peers. This leads to a condition of low fitness, making participation in sports more difficult, which leads to more inactivity, which can lead to weight gain… I think you get the idea. And children who are at a “healthy” weight may be unfit due to not getting enough exercise. So there is now this situation in which young people are likely to be unfit, obese, or both.

Aside from the health issues, there is an unexpected consequence of childhood obesity: many potential military recruits do not meet weight and/or fitness entrance requirements. It is entirely possible that the obesity epidemic could have national security consequences!

You can read more about the problems associated with obesity and poor fitness among military recruits here.

Where to begin?

Let’s say you smoke, don’t exercise, and need to lose weight. Or maybe you are overweight and mostly sedentary. Let’s also say that you are only willing to change one of these health behaviors. Where should you begin?

This is the topic of my Health & Fitness column in the Aiken Standard this week. Check it out…the answer may surprise you.

Incidentally, many people are in the situation described above and many more need to change two of these behaviors, most commonly losing weight and becoming more active. And many people find making these changes to be overwhelming, so they try to start with one. But which one?

Your pants may be making you fat!

It’s true! Many men’s pants—women’s too, I’m told—have an expandable waist with up to 2–3″ of stretch for “comfort” or to “move with you.” Move with you? Are you James Bond?

What this really means is that these pants allow you to expand your waist and still wear the same size pants. That way you can still tell yourself that you wear the same pants size you did in college.

Read more about this, and other ways we miss signals that we are gaining weight, in my Health & Fitness column in the Aiken Standard today.

Maybe we have been asking the wrong question. Instead of, “Do these pants make me look fat?” we should ask “Will these pants actually make me fat?”

These pants WILL make you fat!

“Comfort” must be pants-code for fat!

 

Today is Food Day 2012

Today is Food Day, with the goal to improve the health and quality of life for everyone by promoting healthy eating, supporting local farms, making sure everyone has access to healthy food, and reducing the influence of food corporations that produce and advertise unhealthy food, particularly to children. Food Day is the topic of my weekly Health & Fitness column in the Aiken Standard.

Here is an example of the wide impact that our food choices have on our health, the environment, and the health of others:

Say your next meal is lunch and you will have a burger. Sure you know that the beef comes from a cow, but do you know that the conditions in which the cow lived and what it ate have an effect on the quality of your burger, your chances of getting a food-borne illness, and the environment? Most of the meat we eat comes from animals that live on huge confined animal feeding operations (CAFOs) and are processed in plants that are hazardous to workers, the environment, and our health. At CAFOs cows eat primarily grain and the meat has higher levels of unhealthy fats and is more likely to be contaminated with potentially dangerous bacteria. Huge feedlots with as many as 50,000 cows have to use antibiotics to prevent the spread of disease and the tons of waste created leads to local air and water pollution. Because your burger likely came from the western U.S., there is an environmental cost of transportation across the country. And consider that the money you pay goes to the corporations that own the cows, farms, and processing plants, people who likely have no connection to you.

But what if your burger came from a cow on a farm in our area. Smaller farms tend to let cattle graze in fields and meat from grass-fed cattle have higher levels of healthy fat and a lower risk of contamination, in addition to tasting better. The relatively small amount of waste created is probably used as fertilizer on the farm and since the farm is local, the transportation costs, both in dollar and environmental terms, are lower. The money you pay goes to the owners and workers on the farm who most likely live, and pay taxes, in this area.

So, how will you celebrate Food Day? For starters, you could learn more about what you eat and take steps to eat more real food and less processed “food-like substances.” Here are some additional resources to help you learn more about the health, environmental, and economic issues related to Food Day:

A good place to start is the Food Day website.

The Center for Science in the Public Interest is the consumer advocacy organization behind Food Day and an excellent resource for nutrition and health information.

Michael Pollan is one of my favorite experts on food. He is the author of several books, all of which should be required reading for pretty much everyone (kids, too–he has kids versions of his books). Start with In Defense of Food, which offers this elegant bit of advice: Eat food. Not too much. Mostly vegetables.

Marion Nestle is an expert on nutrition and food policy, in particular the politics that surround these topics. Her book, Food Politics, explains the political and corporate factors that influence government decisions and policy regarding food and nutrition. What to Eat is a comprehensive guide to making smart choices for healthy eating.

Maybe you would prefer a movie instead. Food, Inc. is a 2008 documentary that examines the health and the environmental impacts of food production. The themes are similar to those in the book In Defense of Food, but this is a compelling movie whether you have read the book or not.

Aside

Getting in shape doesn’t require spending hours at the gym. In fact, you can do it at home  in as little as 10 minutes per day. A growing number of 10 minute exercise programs promise that you can build muscle … Continue reading →

Health by the numbers

There are many numbers you know (or should know) that are important to your health. Your blood pressure, total cholesterol, and body weight are a few.

But did you know that the numbers 0, 5, 10, 25, and 30 are just as important for good health? Any one of these numbers can reduce your risk of chronic disease and death. Combining all of them greatly improves your health and longevity.

You can learn more about these numbers, and how you can use them to improve your health, in my Health & Fitness column in the Aiken Standard this week.

Then, you can learn more about what these numbers represent at the links below:

If you smoke, you can learn more about the Health effects of smoking and get Information about smoking cessation.

Information about the importance of including fruits and vegetables in your diet as well as General nutrition guidelines for good health.

Check out the current Physical activity guidelines and a host of tools to help you become more active.

You can determine your body mass index (BMI) using this BMI calculator and get more information about losing weight and maintaining a healthy body weight.

Preseason practice safety

My Health & Fitness column in the Aiken Standard this week is about preseason sports safety. The major issues I raised involve risks associated with doing too much vigorous training  in a hot, humid environment and the potential for concussion, especially in contact sports like football.

This topic was covered in a recent NPR  interview  with Dr. Douglas Casa of the Korey Stringer Institute at the University of Connecticut in Storrs, Connecticut. You can also watch a video in which Dr. Casa discusses hydration and preventing heat illness in young athletes.

The topic of concussion is addressed in this video of a lecture given by Dr. Kevin Guskiewicz, Professor of Exercise and Sport Science at UNC-Chapel Hill and MacArthur Foundation “Genius” award winner.

You can learn more about sports injury prevention and the role of certified athletic trainers in keeping young athletes safe from the National Athletic Trainers Association (NATA). All athletic trainers working in our area at certified by the NATA.