12/19/2006

Exercise and the Common Cold

It's not a cure but it won't hurt

Should you exercise when you have a cold?

Studies have found that regular, moderate exercise is effective for reducing one's risk of catching a cold. In a study of people with colds, exercise didn’t speed up recovery, it didn’t slow it down either. Unless there is fever or any serious problems, it appears the best medicine may be to continue exercising moderately while the cold runs its course.

From research published in the journal of the American College of Sports Medicine, click here to read a summary from the American Council on Exercise.

Information from ACE FitFacts, permission granted.

10/05/2006

Assessing and Training for Better Posture: Lower Extremity Postural Distortion

Part one of a series of 3 articles
Good posture is essential for the best exercise performance, and to avoid pain and injury. and in everyday life.

Flattened and externally rotated feet, Knees rotated and tilted inward...

When these postural distortions are observed while standing or performing movements, they indicate a Lower Extremity Postural Distortion. The legs are not capable of producing optimal levels of force, or of absorbing force from activities such as running.

Tight Muscles include:

  • Calves
  • Inner Thigh
  • IT Band
  • Hip Flexors

Common complaints with this postural distortion include foot pain (heel spurs or plantar fascitis), knee pain, hip pain and shin splints.

Weak muscles include:

  • Tibialis (shins)
  • Vastus Medialis (a quadricep)
  • Glutes Maximus & Medius
  • Hip External Rotators

As you can see, when a muscle is tight, its opposing muscle is weak. An effective corrective component of your exercise program will focus on strengthening the weak muscles and stretching the tight muscles.


Proper exercise selection is very important. Today, I met with member who frequently used the inner thigh machine. His knees were internally rotated indicating that this machine was not likely to produce a successful outcome for his program. Please let me know if you need help with assessment, exercise selection or program design.


Future topics: Pelvic Tilt, Protracted Shoulder, Forward leaning head

Supplements: Too Much of a Good Thing?

From the American Council on Exercise
In a perfect world, everyone would know exactly what and how much to eat for both optimal health and peak performance. Unfortunately ours is not a perfect world and most of us are left on our own to decipher the implications of current research findings or the latest nutritional fad.

Americans seem to be married to the idea that in order to achieve our goals, we must consume special dietary products in amounts not normally found in a typical diet. But while the initial promises offered by makers of these supplements are often enchanting, the actual benefits to the consumer don't necessarily live up to the advertising. Let me know if you have any specific questions, and click here to read or download a PDF of the full story.

Fit Facts are reprinted from ACE FitnessMatters magazine. permission granted.

9/17/2006

Debunking the Carbs Protein Hype


Exerpts from a Joint Position Stand of the American College of Sports Medicine, American Dietetic Association and Dietitians of Canada

There is no evidence that athletes need a diet significantly different than the general population
- Carbohydrates should represenet 55-58% of energy (calories)
- Protein should represent 12-15%
- Fat should represent 25-30%
- Individuals who want to gain muscle mass should consume 1.6.-1.7 grams of protein per kilogram of body weight
- Endurance trained athletes should consume 1.2- 1.4 grams per kilogram of body weight
- Consumption of higher amounts is not shown to be beneficial and could cause health problems
- Carbohydrates are essential to the recovery process, they replace muscle glycogen and facilitate the repair process
- The post exercise meal should contain a mix of carbohydrates, protein and fat
- Supplements should generally not be required if sufficient nutrients are being consumed in the diet.

Losing Weight, Keeping it Off

From a position stand by the American College of Sports Medicine
ACSM recommends that the public follow these general guidelines for losing weight and keeping it off: Consult with a trained healthcare professional, consider losing weight if BMI is 25 or above, reduce caloric and fat intake, exercise 2.5 - 4.5 hours a week, and use dietary supplements/weight loss drugs only under physician supervision.

-An "energy deficit" of 500-1000 calories a day is recommended
-An effective weight-loss program must include increased energy expenditure in addition to reduced dietary intake.
-Significant health benefits can be realized with a minimum of 150 minutes of moderate intensity exercise a week; there may be advantages to increasing to 200-300 minutes per week
-Even modest reduction of 5-10% produce significant health benefits
-If energy needs exceed energy intake, weight loss will occur
-Very low calorie diets (VLCDs), used in conjunction with dietary supplements and requiring medical supervision, may increase the magnitude and rate of weight loss but probably will not improve long-term weight loss

Exercise Can Help Control Stress

People who exercise regularly will tell you they feel better.

Here are four ways exercise controls stress, according to the American Council on Exercise:

1. Exercise can help you feel less anxious. Following a session of exercise, clinicians have measured a decrease in electrical activity of tensed muscles.
2. Exercise can relax you. One exercise session generates 90 to 120 minutes of relaxation response.
3. Exercise can make you feel better about yourself. That feeling of self-worth contributes to stress relief.
4. Exercise can make you eat better. And it's no secret that good nutrition helps your body manage stress better.

Activities you can choose from:
Aerobic activity - All it takes is 20 minutes' worth, six to seven days a week.
Yoga - Recent studies have shown that when large muscle groups repeatedly contract and relax, the brain receives a signal to release specific neurotransmitters, which in turn make you feel relaxed and more alert.
Recreational sports - require the kind of vigorous activity that rids your body of stress- causing adrenaline and other hormones.

Don't try exercising in your office. Outdoors or away from the office is the best place to find a stress-free environment. Even a corporate fitness center can have too many work-related thoughts for some people.

Click here to read the whole story from the American Council on Exercise

8/29/2006

Delayed Muscle Soreness

Why does it hurt a day or 2 later?

There are two types of exercise-related muscle soreness. Immediate muscle soreness quickly dissipates and is the pain you feel during, or immediately after, exercise. Delayed muscle soreness manifests 24 to 48 hours after the exercise session and spontaneously decreases after 72 hours.

The most current research attributes it to microscopic tears in the muscle and surrounding connective tissue following eccentric exercise. (A muscle contracts eccentrically when it lengthens under tension during exercise).

Those who experience delayed muscle soreness include conditioned individuals who increase the intensity, frequency or duration of their workouts, or participate in an activity that they are unfamiliar with. Beginning exercisers, or those who have undergone a significant lapse in training,frequently experience soreness when starting a new exercise program.

Once you induce delayed onset muscle soreness at a specific exercise intensity, you shouldn't experience that sensation again until intensity is increased. This is because delayed muscle soreness has been shown to produce a rapid adaptation response, which means that the muscles adapt to an exercise intensity.

Click to read the whole story from the American Council on Exercise.