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Sunday, October 26, 2008

Just one exercise session speeds fat metabolism

Is this another installment of homeopathic fitness?
"A single bout of exercise helps obese individuals boost their body's fat-burning rate and improve their metabolic health, results of a small study confirm.

'This means that exercising, even without losing weight, can benefit individuals in terms of metabolic health,' Andrea Cornford, a graduate student researcher from the University of Michigan, Ann Arbor, told Reuters Health."
Not in this case, even though it sounds like it.

So how much "exercise" did they do?
"They found that the women's fat-burning rate was reduced after the session in which they overate and did not exercise. Conversely, just one 90-minute session of exercise -- enough to expend the excess 700 calories that were consumed -- increased the rate of fat-burning and increased the amount of fat that would be stored in muscle, Cornford reported."
Here is how these silly numbers pan out.

To burn 700 Calories in 90 minutes, you have to burn 7.778 Calories per minute.

Moderate-intensity physical activity is "any activity that burns 3.5 to 7 Calories per minute (kcal/min)."

Vigorous-intensity physical activity is "any activity that burns more than 7 Calories per minute (kcal/min)."

The obese women in this study, these researchers claim, "exercised" at an intensity about 11% greater than the low-end of vigorous for a full 90 minutes.

This is, of course, bulls**t.

If they did, which is less likely than highly unlikely, then I submit they are not representative of your average fat out of shape obeseling.

Further, in 1984, the fastest people in the world moved their feet between 185 and 200 times per minute. This was the "stride rate" of "athletes in the 1984 Olympic track and field competitions."

According to research recently presented at the American College of Sports Medicine (ACSM) Annual Meeting in New Orleans:
"The...study, funded by the Centers for Disease Control and Prevention, was designed to translate ACSM/CDC public health guidelines for 30 minutes of daily moderate-intensity physical activity into steps. Researchers at San Diego State University and Arizona State University utilized commercial pedometers on a community sample of adults. Their results support an approximate 100 step/minute recommendation for minimally moderate intensity. To meet ACSM/CDC recommendations, this equates to 3,000 steps in 30 minutes, or three daily bouts of 1,000 steps in 10 minutes."
3000 steps in 30 minutes is 100 steps per minute.

100 steps per minute is 1.67 steps per second.

100 steps per minute is for "minimally moderate intensity" physical activity (3.5 Kcal/minute).

For "maximally moderate intensity" physical activity, one needs to move 200 steps per minute (7 Kcal/minute).

For vigorous intensity physical activity at 11% above the low-end, one needs to move 222 steps per minute, or 11 - 20% faster than the fastest people on earth in 1984.

So these researchers claim that their fatsos moved their feet faster than the fastest people on earth in 1984.

These researchers are stupid crazy and they will do you harm.

If you are interested in seeing more about the insane numbers that the experts are throwing at you and why their recommendations must fail, which they do, go here.

Do not fall for the crap of the experts.

Unless you want two things:
1. Failure
2. Heart Attack

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