Archive for the ‘Exercise’ Category

Exercise Dramatically Reduces Triglycerides

Wednesday, August 20th, 2008

Just a single exercise session done at a moderate intensity dramatically improves plasma triglycerides.  The effect lasts into the next day.   Lower triglycerides are associated with lower Body Mass Index (BMI) and Waist to Hip Ratios (WHR) along with improved insulin sensitivity. The reduction in triglycerides was correlated with exercise duration and ...

Elliptical Trainer Outshines Stationary Bike

Monday, May 19th, 2008

Exercise equipment that allows weight bearing exercise involving both the arms and legs may be the best choice for obese individuals.  Using an elliptical trainer allows you to burn more calories than a stationary bike at the same perceived intensity. Treadmills (weight bearing, but no arm action) and airdyne cycles (arm ...

Exercise Intensity and Fat Burning

Monday, May 12th, 2008

The exercise intensity that produces the maximum fat oxidation rate (known as FATmax) varies widely, but primarily correlates with aerobic capacity.   Fitter individuals are able to oxidize fat at higher rates across all intensities, but their maximum fat oxidation rate is at a much higher intensity than unfit individuals. Obese individuals have a ...

Endurance Training Improves Fat Partitioning

Wednesday, April 9th, 2008

Endurance trained athletes possess increased insulin sensitivity and fat oxidative capacity over untrained individuals.  They also have increased levels of intramuscular fat known as intramyocellular lipid.  It appears that aerobic exercise training increases levels of this fat while improving obesity indices. A 16 week moderate aerobic exercise training program produced a ...

Exercise Corrects Impaired Fat Oxidation in Obese

Monday, February 18th, 2008

Obesity results in decreased fatty acid oxidation rates in muscle tissue.   Weight loss alone does not correct impaired muscle fatty acid oxidation.  But exercise training begins to increase muscle fatty acid oxidation in as little as 10 days. Those beginning an exercise program can expect better weight loss results over the long term ...

High Intensity Exercise More Effective Than Steady State

Monday, January 28th, 2008

Performing high-intensity interval training, where high intensity work periods are alternated with rest periods, is more effective for fat loss than steady state aerobic exercise. A 15 week interval training exercise program produced greater fat loss, greater weight reduction, greater fat mass reduction and greater improvements in fasting insulin levels than steady state aerobic exercise ...

Fatness, Fitness and Insulin Sensitivity

Monday, September 17th, 2007

It is well established that exercise improves insulin sensitivity through both glycogen depletion and activation of non-insulin mediated glucose transport. Obesity is associated with insulin resistance. Aerobic exercise is at least partially corrective for obese individuals. Overall, the best insulin sensitivity is found in normal weight, fit individuals and the worst insulin ...

Ultra-endurance races and body composition

Tuesday, July 24th, 2007

A multiple stage, ultra-endurance triathlon over 10 days resulted in significant fat loss and no loss of lean body mass, indicating that all of the weight lost was from body fat. The participants lost an average of 3 kg (about 6.6 lbs). Low intensity aerobic exercise is predominantly fueled by fatty ...