Posts Tagged ‘healthy’
Exercise requires energy, pure and simple. But where does it come from? The answer is glycogen. But what is it?
When we digest food we’ve eaten, the carbohydrates are broken down by our bodies into glucose, and then the glucose is stored in our muscles . . . as glycogen. During periods of exercise, this process reverses, and glycogen converts to glucose once again, so that is may be used for energy. How long we “last” is greatly influenced by how much glycogen we have stored in our muscles.
Exercise that lasts less than 90 minutes is typical for most of us. Carbs typically provide 40-50% of our energy in the beginning stages of moderate exercise. What the body naturally stores will sustain you through a workout of this length.
But as the intensity of physical activity increases, the body’s carbohydrate consumption increases too. For events over 90 minutes, eat a heavy-carb diet for 2-3 days prior.
Picture the muscles like porous rocks. The more glycogen is filling all those crevices, the more energy reserves we have to draw upon. This is why cyclists, marathoners, triathletes, soccer players and other endurance athletes excel when they’ve pre-loaded for 2-3 days with about 70% carbs. Glycogen is the fuel which sustains the body in highly physical situations.
Have you heard the term “hitting the wall?” This refers to an actual event in the body, the depletion of glycogen. Once stores are gone, energy is truly kaput; you have no way to generate more.
Don’t assume you should eat a high-carb diet all the time, though, even if you exercise heavily. Once glycogen fills all the areas where reserves can be stored, any extra that is produced is stored as body fat. Eating too many carbs causes this excessive glycogen production.
Another danger of overdoing carb consumption: you can unwittingly “train” your body not to utilize essential fatty acids that come from fat. Not only does fat transport cholesterol and play a role in blood clotting, it helps us absorb vitamins and produce hormones.
Conversely, eating too few carbs forces the body to use protein for energy. The body will actually start to break down protein – the building blocks for muscles, bone, and other tissues – meaning you put yourself into a sort of self-cannibalization. Your body starts to feed on its own muscles and you lose muscle mass. This is also tough on kidneys. Not a pretty thought.
So strike a happy balance between protein, carbs and fat, and remember lean protein, high fiber and unsaturated fats as your first choice. It’s all about balance and timing: my 80/20 rule. Athletic training is 80% nutrition, 20% training. Get the food right, you have a bonafide mega-advantage over the competition.
Michelle Ciuffetelli, a Certified Personal Trainer in Fort Myers, Florida, says her favorite carbs are oatmeal (filling and a good source of fiber); sweet potatoes; fruit (a great snack); Arnold Sandwich Thins (good fiber); and Flat Out wraps (taste great, can wrap anything).
Now get moving. That’s a wrap!
Whether you’re a triathlete, a recreational or endurance runner, or even a power walker, your body relies on proper fuel to do what you ask it to do. Training will take you only so far, no matter how religiously you do it. Here’s a surprising statistic I mentioned last week: nutrition counts for 80 percent of athletic training.
I’ve always been an advocate of eating whole-grain foods – breads and pastas, wild rice, veggies, beans and oatmeal – but you must read labels carefully. Whole wheat does not equal whole grain.
Runners also need “good” fats, typically 20-30 percent of daily intake. Fat is energy for muscles, once quick-burning carbs have been used. Avoid trans fats. Heart-healthy omega-3s come in walnuts, flax seeds, cold-water fatty fish, soybean and canola oils and even tofu.
Don’t forget protein. A total of 15-35 percent of a runner’s diet should be lean proteins such as fish, poultry, low-fat dairy, nuts and seeds. Avoid foods high in saturated fats and cholesterol.
Find the percentages that work for you, and remember: hydration is key to the formula, and timing is everything. Drink early: do NOT wait for thirst to set in. Think of hydration as a pro-active commitment, not as a fix for thirst. Watch your urine: if it’s pale, you’re drinking enough water.
Always choose a pre-exercise meal that’s low in fat and fiber, is high carbohydrate and includes moderate protein. That’s the formula for endurance and energy.
While running, consume approximately 8 ounces of water every 15 minutes. If you’re exercising longer than an hour, alternate water and Gatorade about every 15-20 minutes. For high intensity workouts, I also suggest a sports drink like G2 (Gatorade2).
After running, you need 3 cups of fluid for every pound lost. Your body also needs protein and carbs (like chocolate milk and trail mix). A protein boost within 15-20 minutes of ending your workout will dramatically affect how your muscles rebuild and replenish.
The time period right after exercise – your short-term “recovery” window – is the most critical for improving your body. Training breaks down muscles, literally, and depletes natural energy stores (glycogen). During recovery, muscle tissue begins to repair and in so doing, strengthens. Energy replenishes.
Timing is key. Your short-term recovery window is only about 45 minutes, and can be wasted during a post-workout chat and/or drive home. Once this window closes, your muscles will no longer be receptive to the nutritional assistance you could have provided.
Bottom line: have a snack immediately following a workout that contains carbohydrate and protein, for this critical period. You’ll start to see a real change in your muscle tone, endurance and energy.
A good post-exercise meal, within 60-90 minutes, could be salmon, brown rice, broccoli, peppers and carrots. Let your body enjoy long-term recovery on “no-workout” days, while you focus on a healthy diet. And don’t skip meals. I personally eat six small meals a day.
Next week: nutrition for swimmers.
Ever heard the term “Weekend Warriors?” These fun-loving, sports-minded folks work hard then occasionally decide to have some fun by participating in an activity that’s new (or old and dear). The problem is, their body isn’t conditioned through diet and exercise for what’s about to happen, and the result is often an injury … sometimes a bad injury.
Common catalysts for weekend warrior syndrome are spring thaw, reunions, holidays, turning 40, turning 50, New Year’s resolutions and your teen’s friends playing ball in the lot next door. There are abundant opportunities to “jump right in” and although your heart’s in the right place, you could pay a big price later.
I’ve fallen victim to this scenario myself. I work out on a regular basis and eat well, but recently I played a charity softball game, a sport that I used to play in my younger years … and I could not get out of bed on Monday. I also could not use my Blackberry because my hands hurt so bad.
Had I at least been doing some type of similar activity before that game, or stretching the body parts I knew I’d be using, I might have had a fighting chance. Changing from a flat gym floor to uneven earth or rolling trails or sloped beaches can also cause issues. Imagine what the 50th-birthday-but-20-mile-bike-ride might do to an office worker.
If we’re not used to using certain muscles, we make ourselves prime candidates for debilitating or highly irritating injuries. I was thinking about the various ways to keep the body prepared for the occasional odd activity, and came across a great quote on the Internet: “Men over 40 should be fit for their sport rather than using their sport to get fit,” it said. This surely applies to everyone contemplating a sudden, big burst of athleticism.
The easiest way to avoid injury is the one requiring the most discipline: don’t do too much of anything that’s new. Start out in moderation, play part of the game, do 5 miles instead of 20. You could save yourself a stress fracture or a couple of very uncomfortable weeks.
Flexibility and stretching are key, too, so if you know you have a new sport ahead, start working that part of the body, stretching daily, and always stretch after a workout to gain flexibility. A balanced diet and proper weight is always a good idea. Hauling an extra 30 pounds around a make-believe football field is tough.
Here’s another tip: A lack of magnesium can lead to muscle weakness and cramps. Magnesium is lost via sweat, so regular exercisers and even saunagoers need to take in enough magnesium rich foods or supplement magnesium. But after a spontaneous workout, you’d do well to have some on hand.
Weekend warriors can benefit from maintaining a healthy mineral balance. Think of magnesium as your “muscle mineral.” The FDA recommends 310-420 mg daily for most adults.
Here are a few magnesium-rich foods if, like me, you prefer a healthy diet to taking lots of supplements: 3 ounces of halibut, 90 gm; 1 ounce dry roasted almonds, 80 gm; 1 ounce dry roasted cashews, 75 gm; 1/2 cup cooked soybeans, 75 gm; 1/2 cup frozen spinach, 75 gm; 1 ounce mixed dry roasted nuts, 65 gm; 2 biscuits of Shredded Wheat cereal 55 gm; 1 cup instant fortified oatmeal, 55 gm.
I also like to keep resistance bands all around me: tied to doors, in my travel bag, in front of the TV, wrapped around the legs and arms of my chairs. A good 10-minute workout with bands can be great if done right.
So if your college roomie has challenged you to a tennis rematch from days gone by … start working the “pushing” muscles on your chest wall, and get your shoulder primed for action. Do some sideways motion drills, and start taking magnesium. If it’s been a while, you’re going to need it!
In my last column, I explained that whey protein is often a problem for lactose-intolerant people who are using a protein supplement. It’s easy to assume that a protein supplement is beneficial for only extreme athletes such as bodybuilders, but that couldn’t be farther from the truth.
Protein has many uses and supplementation is beneficial for a wide variety of users. They include the elderly; those with joint or degenerative diseases, or orthopedic conditions; the overweight; people who do heavy manual labor in their work, sport or hobby; those going through growth phases; people in physical rehab; men and women doing intensive training for a sport or competition; adults who work out on a regular basis; teen athletes who are trying to build muscle and strength; people taking symptomatic treatment for pain relief or inflammation; and anyone with pain resulting from excessive joint stress. Hardly anyone you know doesn’t fit onto that list somewhere.
The trick is getting that extra protein without absorbing a lot of extra calories, fillers or dairy products (as in the case of whey protein powder).
Collagen is a great way to get added protein. Did you know that collagen is the second-largest component of the human body after water? It’s a protein, and one found in muscles, joints, ligaments, tendons, bones and more.
Historically, physicians have used collagen to treat skin trauma, such as burns and wounds. But collagen also affects the hair, nails and overall healthy appearance of skin, which is why you see it advertised in high-end skin care products.
As we age, our bodies stop producing collagen protein, and sadly, it’s collagen that gives our skin elasticity. So the appearance of dry, wrinkled skin is really the lack of collagen. Supplementing your diet with a natural source of collagen protein doesn’t just make you more youthful looking, however. Collagen builds lean healthy muscle – the muscle of youth – as well as healthy joints and bones. Can you think of a better supplement to give the special elders in your life?
Collagen protein also helps aid in the repair of muscle tissue. Because a good workout or physical exercise is actually breaking down the body’s muscles, collagen protein assists in the rebuilding process. Collagen makes it possible to heal faster, simultaneously building leaner muscle, following a workout. Some will even find they sleep more soundly when taking collagen protein. Sounds better all the time, doesn’t it?
You may wonder why a person can’t just eat more protein and gain the same benefits. It’s about bioavailability. Protein in food form has calories, of course, and a healthy daily diet only contains so many. The bioavailability of the protein also comes into question. By the time your body works to chew and digest the food, you’re not getting nearly as much protein as the amount you started with on your plate.
A powder form can provide extra protein without as much work for the body, but comes with the added calories of what it’s poured into. A liquid protein is your best bet. Find one that’s small in calories, and better yet, hydrolyzed – or “predigested” – which simply means that you ingest it in its smallest form, with no extra work for the body to break it down.
I encourage you to join me – and my husband and my teenage son – and add a low-cal collagen protein supplement to your diet. You could be amazed at the changes you experience. See the developing abs on the teen in the photo? That’s my son Cody, who drinks a liquid collagen protein supplement and works out regularly.
- Elaine Hastings is a registered dietitian, sports nutrition authority, and and owner of Associates in Nutrition Therapy in Fort Myers, Florida. She can be contacted at Elaine@eatrightRD.com or by visiting Associatesin Nutrition.com.
Smoothies are a great snack or meal replacement (and a mobile one at that). They’re especially healthy as a meal replacement if you follow my recommended pattern of eating five to six small meals per day.
Smoothies can also be effective for weight gain or weight loss and are super for helping you stay healthy. It’s all about what goes in the blender, and the beauty of smoothies is that you can customize them not only to your taste, but also to your dietary needs.
If, for example, you need a pick-me-up to aid in recovery after an athletic event or exercise, use orange juice, apple juice, skim milk, ice, soymilk, pineapple juice, Gatorade, water or low-fat chocolate milk as the liquid base. I typically recommend liquid recovery over solid because it’s absorbed faster, is quick to intake and easier to talk someone into doing if they’re hesitant to eat after a workout.
There’s also the rehydration factor.
I recommend smoothies and liquid supplements for the same reasons: they’re easier to consume, and have a faster availability of nutrients due to shorter transit time from ingestion to utilization. The science of nutrition says, quite simply, that liquids simply have a faster absorption rate.
If you’re trying to add protein to your diet, blend natural peanut butter, skim milk or almonds into your smoothie. Green tea smoothies can aid in weight loss as well as give you a healthy dose of antioxidants. I recommend Stevia, Agave and Splenda when you want to add sweetener.
At our house, we use frozen strawberries, banana, cranberry grape juice, AminoRip protein supplement and ice. If we want to make more of a shake, we add skim milk, or just replace the cran-grape with skim milk. When making smoothies for my 14-year-old son, however, I would use all of the above and replace skim milk with whole milk.
After-school snacks that include protein are another way to power-pack your kids with nutrient-dense foods. Almond milk, kale, cacao nibs and vanilla rice protein make a really good smoothie.
Keep your fridge stocked with smoothie ingredients and you’ll be far more likely to whip up a healthy treat for yourself, your friends or family. Buy fresh fruit in season and freeze it.
Yogurt smoothies made with frozen bananas or strawberries are terrific. Some of the tastiest fruits for smoothies include blueberries, raspberries, blackberries, strawberries, banana, apples, pineapple and peaches.
Get creative in how you mix them, and make yourself happy. Experimentation can lead to some wonderful surprises for your palate. It’s that easy.
Frozen fruit smoothies are a quick, nutritious breakfast food, hydrating you early and giving your body the full range of nature’s bioavailable vitamins, nutrients and antioxidants. They’re also full of natural fiber and help boost the immune system. You sure can’t say that about a donut.
I love my Magic Bullet blender and the manufacturer has a ton of great smoothie recipes on its “Buy the Bullet” company website. Share your favorite recipe with me via the comments column at The News-Press.com, or on my Facebook page, and I will post the recipe, along with my thoughts, and/or recommended changes.
Don’t be tempted to skip a meal, especially if you’re trying to lose weight. Substitute a smoothie instead. And if the thought of cleaning a blender is making your resistant to this oh-so-healthy option, I have fallen prey to that myself. Just head straight for Smoothie King. You might see me there!
(Originally in print in The News-Press, a Gannett daily paper serving southwest Florida, under the column Nutrition Notes. To see in its original form, until archive is deleted: http://www.news-press.com/apps/pbcs.dll/article?AID=20105110308 )
Elaine Hastings is a registered dietitian and owner of Associates in Nutrition Therapy in Fort Myers. Hastings can be contacted at Elaine@associatesinnutrition.com or by visiting AssociatesinNutrition.com. Follow her on Twitter @elainehastings
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