Monday, July 12, 2010

Why you should exercise

Any listing of the medical problems and health-related conditions that can be at least partially treated and controlled by exercise would be extensive. Among the most significant of these health concerns and the manner in which exercise is thought to help alleviate each condition are the following:

• Allergies. Exercise is one of the body's most efficient ways to control nasal congestion (and the accompanying discomfort of restricted nasal blood flow).

• Angina. Regular aerobic exercise dilates vessels, increasing blood flow— thereby improving your body's ability to extract oxygen from the bloodstream.

• Anxiety. Exercise triggers the release of mood-altering chemicals in the brain.

• Arthritis. By forcing a skeletal joint to move, exercise induces the manufacture of synovial fluid and helps to distribute it over the cartilage and to force it to circulate throughout the joint space.

• Back Pain. Exercise helps to both strengthen the abdominal muscles and the lower back extensor muscles and stretch the hamstring muscles.

• Bursitis and Tendonitis. Exercise can strengthen the tendons— enabling them to handle greater loads without being injured.

• Cancer. Exercise helps you maintain your ideal body weight and helps keep your level of body fat to a minimum.

• Carpal Tunnel Syndrome. Exercise helps build up the muscles in your wrists and forearms— thereby reducing the stress on your arms, elbows, and hands.

• Cholesterol. Exercise will raise your level of HDL (the "good" cholesterol) in the blood and help lower your level of LDL— the undesirable lipoprotein.

• Constipation. Exercise helps strengthen the abdominal muscles, thereby making it easier to pass a stool.

• Depression. Exercise helps speed metabolism and deliver more oxygen to the brain; the improved level of circulation in the brain tends to enhance your mood.

• Diabetes. Exercise helps lower excess blood sugar levels, strengthen your muscles and heart, improve your circulation, and reduce stress.

• Fatigue. Exercise can help alleviate the fatigue-causing effects of stress, poor circulation and blood oxygenation, bad posture, and poor breathing habits.

• Glaucoma. Exercise helps relieve intraocular hypertension— the pressure buildup on the eyeball that heralds the onset of glaucoma.

• Headaches. Exercise helps force the brain to secrete more of the body's opiate-like, pain-dampening chemicals (e.g., endorphins and enkephalins).

• Heart Disease. Exercise helps promote many changes that collectively lower your risk of heart disease— a decrease in body fat, a decrease in LDL, an increase in the efficiency of the heart and lungs, a decrease in blood pressure, and a lowered heart rate.

• High Blood Pressure. Exercise reduces the level of stress-related chemicals in the bloodstream that constrict arteries and veins, increases the release of endorphins, raises the level of HDL in the bloodstream, lowers your resting heart rate (over time), improves the responsiveness of your blood vessels (over time), and helps reduce your blood pressure by keeping you leaner.

• Insomnia. Exercise helps reduce muscular tension and stress.

• Intermittent Claudication. Exercise helps improve peripheral circulation and increase your ability to tolerate pain.

• Knee Problems. Exercise helps strengthen the structures attendant to the knee— muscles, tendons, and ligaments— thereby facilitating the ability of the knee to withstand stress.

• Lung Disease. Exercise helps strengthen the muscles associated with breathing and helps boost the oxygen level in your blood.

• Memory Problems. Exercise helps to improve your cognitive ability by increasing the blood and oxygen flow to your brain.

• Menstrual Problems and PMS. Exercise helps to control the hormonal imbalances often associated with PMS by increasing the release of beta-endorphins.

• Osteoporosis. Exercise promotes bone density— thereby lowering an individual's risk of suffering a bone fracture.

• Overweight Problems. Exercise suppresses your appetite, increases your metabolic rate, burns fat, increases lean muscle mass, and improves your level of self-esteem.

• Varicose Veins. Exercise can help control the level of discomfort caused by existing varicose veins and help you prevent getting any additional varicose veins

Are the positive effects that result from exercising regularly worth the required effort? Absolutely. Should you make exercise an integral part of your daily regimen? Of course, you should.

Thursday, June 24, 2010

Importance of Drinking Enough Water

1. 75% of Americans are chronically dehydrated.

2. In 37% of Americans, the thirst mechanism is so weak that it is
often mistaken for hunger.

3. Even MILD dehydration will slow down one's metabolism as much as 3%.

4. One glass of water shuts down midnight hunger pangs for almost 100% of the dieters studied in a U-Washington study.

5. Lack of water is the #1 trigger of daytime fatigue.

6. Preliminary research indicates that 8-10 glasses of water a day could significantly ease back and joint pain for up to 80% of sufferers.

7. A mere 2% drop in body water can trigger fuzzy short-term memory, trouble with basic math, and difficulty focusing on the computer screen.

8. Drinking 5 glasses of water daily decreases the risk of colon cancer by 45%, plus it can slash the risk of breast cancer by 79%, and one is 50% less likely to develop bladder cancer.

Monday, August 31, 2009

Your Metabolism

Making the Most of your Metabolism

Metabolism -- what is it and why is it so important? Simply put, your metabolism is the total amount of energy your body needs and uses for all its daily activities. The faster your metabolism, the faster you'll burn calories. The more efficiently you burn calories, the easier it is to lose and maintain weight.

Okay, so how can you increase your metabolism?

Exercise. Working out is the best way to raise your metabolism! During activity, your body demands more energy. Therefore, your metabolism is temporarily increased to meet those demands. Cardio activities also help keep your metabolism elevated for several hours afterwards which also increases the number of calories burned.

Strength Train. Strength training helps increase the percentage of lean muscle mass. Building muscle will permanently increase your metabolic rate by helping your body work more efficiently. That means that you'll burn more calories in a shorter amount of time during any activity and at rest. Traditional weight training and Pilates are both great options.

Eat. This may sound contradictory, but it's true - you have to eat (healthy of course)! First of all, always eat breakfast. Eating breakfast helps jump start your metabolism for the day. Secondly, eat five to six smaller meals a day as opposed to a big breakfast, lunch and dinner. This will help your metabolism remain in constant working mode. Finally, no crash dieting! Skipping meals and crash dieting brings your metabolism to a screeching halt. When you greatly restrict calories, your body wants to conserve energy so it slows down your metabolism. This is why many crash dieters will see initial weight loss, but quickly regain the weight.

Unfortunately, there are some factors that you can not control. If you inherited a faster metabolism, you're in luck. If not, you'll need to work just a little harder. Also, your metabolism naturally slows as you age. Most studies report that between the ages of 25 and 30 your metabolism biologically begins to decrease.

But don't be discouraged. Boosting your metabolism isn't difficult. Just follow the simple tips above. You'll be on your way to a faster metabolism in no time!

Variety is the spice of life!

You may love your current exercise routine and because it seems comfortable and relatively safe, not feel so inclined to change it, especially if it appears to be working.

However, variation is a must. Your body adapts to the demands you put on it. In other words, if we don't challenge ourselves, we won't improve. Fitness pros refer to this as the "overload principle." If it's easy to do bicep curls with a 5-pound weight, continuing with a 5-pound weight will not help develop your bicep strength. You'll need to lift an 8 or 10-pound weight to overload the muscle and build strength.

If you've been doing your current workout consistently for three months, your body has most likely adapted to that workout. You'll eventually reach a plateau or possibly find it difficult to maintain your current fitness level. The workout becomes too easy, too "normal."

Here are a few simple ways to transform your workout:

Increase the weight: When you can perform the last repetition of a strength exercise easily, its time to boost the amount of weight you're lifting.

Add sets or reps: Instead of one set of 10 lunges, make it two sets of 10 lunges (or one set of 15 lunges).

Lengthen the duration: Plain and simple -- work out longer! Choose the 60-minute video instead of your usual 45-minute program.

Raise the intensity: If you're physically ready, pick it up a notch and get that heart rate up. Add an extra riser to your step or increase the range of motion in your movements.

Try something totally new: This is the best way to physically and mentally rejuvenate your workout. There are so many great options -- Pilates, boot camp, step aerobics, Jazzercise, interval training, dance and more. Every new exercise will challenge the body in diverse ways. This helps create the desired "overload" as well as reducing the risk of overuse injuries.

Okay. So there's no need to give up that favorite routine entirely. Just make a few easy modifications. To start, try a new technique or a completely different activity at least one day a week. Before you know it, your old routine may be history.

Saturday, June 13, 2009

Workout Prep: What To Eat Before Your Workout

You probably know that exercising on an empty stomach is not a good idea. However, with all the supplements, energy drinks, and hype out there, it can be confusing to know what should be in your stomach when you hit the gym. Here are some tips.
Concentrate on carbohydrates before you exercise

Complex carbohydrates are an essential component of a successful workout. Because your body eventually converts all foods into glucose—some at faster rates than others—straight glucose is your body’s preferred energy source. As the most readily converted source of energy, carbohydrates should comprise the greatest proportion of your pre-workout meals or snacks.

As a result of this fast conversion time, a small meal composed of mostly carbohydrates can exit the stomach in about one to two hours. Compare this rate to a meal that contains high amounts of protein and fat—which can take as much as several more hours to digest. This extra time can result in delayed emptying of the stomach…and potentially uncomfortable gastrointestinal side effects during your workout.

Another thing to keep in mind is that the type of carbohydrates is also important. Higher in fiber, numerous vitamins, minerals and antioxidants, complex carbohydrates are preferable to refined, simple carbs and are essential to your health.. They are found in foods such as whole grains and fruits and vegetables.
Count your calories before a workout

Eating too much before a workout can result in sluggishness and an upset stomach. But eating too little can end up leaving you hungry in the middle of your routine. Aim to eat about 200 calories within the hour before your workout. The majority of these calories should come from carbohydrates. Consider these snack ideas:

* A half of a bagel with 1 tablespoon of sugar-free jam

* 1 cup of cereal with 1/2 cup of skim milk

* 6 ounces of light yogurt with 1/2 cup of fresh fruit

* A banana and 20 mini-pretzels

* An energy bar with less than 200 calories

Keep hydrated before, during and after exercise

Your pre-workout hydration status plays a very important role in your athletic performance. Dehydration can cause headaches, fatigue and cramping—all of which interfere with a successful workout. A good rule of thumb is to drink approximately 1 milliliter (ml) of water for every calorie you eat. For example, if you eat 2,000 calories per day, you should drink 2,000 ml of water (2 liters), or approximately 8 cups.

In addition to drinking water throughout the day, add another 20 ounces in the hour preceding your workout. If possible, sip on water during your workout, particularly if you are exercising at intense levels for more than one hour.
Meal tips to optimize your workout

Everyone responds differently to pre-workout meals. Although exercising on an empty stomach is not advisable, some people simply cannot tolerate food before a workout. If this is the case, try to eat a nutritious, high complex-carbohydrate dinner the night before a morning workout.

If you are unsure about how your body will react to a new pre-workout eating regimen, experiment with a variety of different snack and meal combinations to determine your optimal fuel food source. Never try a new, untested meal or snack idea on the day of a competitive event.
Recommended intake of food before a workout

The average woman will be adequately fueled with 200 calories of food and 20 ounces of water within the hour before her workout. Men with higher calorie needs may need 300 calories and 30 ounces of water. If you are training for a competitive event, consider meeting with a registered dietitian who specializes in sports nutrition for a food and hydration plan tailored to meet your individual needs.

By Katie Clark, MPH, RD