Archive for April, 2007

Insulin resistance and body fat distribution

Monday, April 30th, 2007

Insulin resistance has a significant affect on body fat distribution, almost as much as testosterone and estrogen. Diabetics represent the highest level of insulin resistance. Type 2 diabetes was associated with less leg fat, more trunk fat, fatty liver and more sub-fascial fat. Visceral Adipose Tissue (VAT) was also greater in ...

Dietary fat and weight gain

Thursday, April 26th, 2007

A follow up to the famous Nurses Study found only a weak link between total dietary fat and obesity. Stronger associations were found for the percentage of calories from animal fats and trans fats. Of those gaining weight, total fat intake did affect the amount of weight gained. Genetic factors did not ...

Resistance training for elderly people

Tuesday, April 24th, 2007

Resistance training produces significant physiological improvements in elderly subjects, even in the absence of weight loss, in as little as 12 weeks. Decreases in waist circumference and visceral fat were noted, along with corresponding increase in HDL cholesterol and decreases in triglycerides and HbA(1c). Abstract

Dietary variety and BMI

Saturday, April 21st, 2007

Eating a wider variety of foods is associated with greater body mass index (BMI). Greater variety of protein sources was associated with increased BMI. Greater variety of carbohydrates was associated with BMI in women only. Perhaps the men chose carbohydrates with more fiber. Variety of fat sources had no affect on ...

Vitamin D status and Insulin Sensitivity

Thursday, April 19th, 2007

Blood levels of vitamin D appear to be intimitely tied to insulin sensitivity. Higher blood levels of vitamin D were associated with less abdominal fat and improved insulin sensitivity. With much of the population in North America at least borderline deficient in vitamin D, this may be a significant discovery. Optimum ...

Caloric deficit and gene expression

Monday, April 16th, 2007

With regard to weight loss, it does'nt matter how a caloric deficit is created...whether by diet, exercise or both. But creating a caloric deficit with dietary caloric restriction has a significant affect on genes involved with cancer protection. Much more than either of the exercise groups. Abstract