Fitness and Conditioning: Why is VO2 Important?

If you exercise regularly, if you exercise vigorously and want to know if you could do even better, you may want to know your VO2 max.

When you exercise, your oxygen consumption increases. It does so within limits which vary from person to person. Your VO2max (where V stands for Volume and O2 stands for oxygen) is your maximal ability to consume oxygen during exertion, measured in milliliters of oxygen per kg of body weight, per minute.

Oxygen is inhaled from the atmosphere by the lungs, where it diffuses into the blood stream, and then

My Grandpa Wants You to Have a Physical Exam!

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Are You Getting Too Little Sleep?

A lot has been said recently about the adverse effects of not getting enough sleep. These range from accidents, big and small, to heart attacks, depression, forgetfulness, weight gain, and....(the list goes on). But individuals vary in their need for sleep. For some, the "classic" 8 hours sleep is just right. For others, 7 or 9 hours is the right number. And the need may change with age and other circumstances.
So how do you know if you're getting enough sleep? If you're inappropriately sleepy during the day, you may not be getting enough sleep.

The simple questionnaire shown below (known as the Epworth Sleepiness Questionnaire) was developed to assess your daytime sleepiness.For each of the 8 questions, circle the most appropriate level. Don't skip any question.

0 -  there is no chance you would doze or sleep

1 -  there is a slight chance of dozing or sleeping
2 - there is a moderate chance of dozing or sleeping
3 - there is a high chance of dozing or sleeping

Situation Chance of Dozing or Sleeping    Sitting and reading    Watching TV 0     1       2     3 0     1       2     3    Sitting inactive in a public place 0     1       2     3    A passenger in a car for an hour or more 0     1       2     3    Lying down in the afternoon 0     1       2     3    Sitting and talking to someone 0     1       2     3    Sitting quietly after lunch (no alcohol) 0     1       2     3    Stopped for a few minutes in traffic       while driving 0     1       2     3 Total score (add up all circled numbers) __________

A score of 10 or higher may indicate that you are not getting enough sleep. It just doesn't tell you the reason.

A score of 18 or above is considered "very sleepy." Further evaluation may be needed to look for the cause, which may include the high risk condition of sleep apnea.

If you are concerned, seek advice. We're here to help.

Vitamin D - For Me?

Vitamin D deficiency in the US is wide spread, affecting more than 40% of the people. Vitamin D is also known as the "sunshine vitamin," and the deficiency is much more prevalent in the northern states and in dark-skinned people. It is also more common in the elderly and the obese. Interestingly, vitamin D is synthesized in the skin from HDL cholesterol (the "good cholesterol"), and people with a very low HDL cholesterol also tend to be more prone to vitamin D deficiency.

In our practice, we check blood vitamin levels routinely, and found that, of those not previously tested, more than 50% were vitamin D deficient.

But why check the vitamin D level?

1. In women, Vitamin D plus calcium supplementation helps reduce dangerous hip and vertebral fractures (I'm sure it also happens in men, albeit to a lesser extent). It's an important factor in the prevention of bone thinning in general, especially with advancing age, and in the prevention of the bone pain often associated with bone thinning (osteoporosis and osteopenia).


2. Women who took vitamin D supplements for an average of 7 years, in an extensive study, had a 13% lower incidence of breast cancer.


3. People with low vitamin D levels have a significantly higher risk of fatal heart attacks, about 27% higher, a frightening statistic (fatal heart attacks account for more than 400,000 deaths a year in the US).


4. It has been strongly suggested, although not fully scientifically proven, that Vitamin D helps keep Diabetes type II (the common type) under better control.


5. Some cancers may be reduced in people who take vitamin D supplements, or who normally have higher (but still normal) vitamin D levels: Colorectal, breast, prostate and pancreatic.


6. There is a marked increase in uterine fibroids in women who have low vitamin D levels.

You Call This Exercise?

I saw joggers outdoors through my window. I'll stay indoors, but I'll pedal...